Error Execution failed for task app compileDebugKotlin Compilation error See log for more details

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Error Execution failed for task   app compileDebugKotlin    gt  Compilation error  See log for more details  build gradle Module app  buildscript       repositories           maven               url  https   jitpack io              url  https   maven fabric io public                       dependencies           classpath  io fabric tools gradle 1            apply plugin   com android application  apply plugin   kotlin-android  apply plugin   io fabric  apply plugin   kotlin-android-extensions    repositories       maven   url  https   maven fabric io public        mavenCentral       android       compileSdkVersion 25     buildToolsVersion  quot 25 0 2 quot      useLibrary  org apache http legacy            lintOptions           checkReleaseBuilds false         abortOnError false            defaultConfig           applicationId  quot uxx xx xxe quot          minSdkVersion 18         targetSdkVersion 25         versionCode 17         versionName  quot 0 1 14 quot           testInstrumentationRunner  quot android support test runner AndroidJUnitRunner quot            buildTypes           release               debuggable false             minifyEnabled true             shrinkResources true             proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro                    debug               ext enableCrashlytics   false             debuggable true             minifyEnabled true             shrinkResources true                          proguardFiles getDefaultProguardFile  proguard-android txt     proguard-rules pro                      sourceSets           main               jniLibs srcDirs     libs               assets srcDirs     src main assets    src main assets                res srcDirs     src main res    src main assets fonts                        dexOptions           jumboMode true         javaMaxHeapSize  quot 4g quot              packagingOptions           exclude  META-INF DEPENDENCIES          exclude  META-INF NOTICE          exclude  META-INF LICENSE          exclude  META-INF LICENSE txt          exclude  META-INF NOTICE txt          exclude  META-INF ECLIPSE  SF          exclude  META-INF ECLIPSE  RSA            dependencies       compile fileTree include      jar    dir   libs        compile  quot com android support cardview-v7   rootProject supportLibraryVersion  quot         compile  quot com google android gms play-services-ads   rootProject googlePlayServicesVersion  quot      compile  quot org jetbrains kotlin kotlin-stdlib-jre7  kotlin version quot      compile  org igniterealtime smack smack-android-extensions 4 1 9      compile  org igniterealtime smack smack-tcp 4 1 9      compile  org igniterealtime smack smack-experimental 4 1 9      testCompile  junit junit 4 12     apply plugin   com google gms google-services  apply plugin   com getkeepsafe dexcount   build gradle Project     Top-level build file where you can add configuration options common to all sub-projects modules  buildscript       ext kotlin version    1 1 2-2      repositories           jcenter             dependencies           classpath  com android tools build gradle 2 3 1          classpath  com google gms google-services 3 0 0            visualize the method count         classpath  com getkeepsafe dexcount dexcount-gradle-plugin 0 6 2          classpath  quot org jetbrains kotlin kotlin-gradle-plugin  kotlin version quot           allprojects       repositories           jcenter           maven   url  quot https   jitpack io quot             ext googlePlayServicesVersion    10 2 0  ext supportLibraryVersion    25 3 1   task clean type  Delete        delete rootProject buildDir    Solution Tried   Invalidate Caches Restart Build - gt  Clean Project Update kotlin plugin  used lastest version of kotlin  google APIs   EDIT   gradlew build --stacktrace  gt  logs txt 2 gt logErrors txt  logErrors txt   Exception is  org gradle api tasks TaskExecutionException  Execution failed for task   app compileDebugKotlin       at org gradle api internal tasks execution ExecuteActionsTaskExecuter executeActions ExecuteActionsTaskExecuter java 84      at org gradle api internal tasks execution ExecuteActionsTaskExecuter execute ExecuteActionsTaskExecuter java 55      at org gradle api internal tasks execution SkipUpToDateTaskExecuter execute SkipUpToDateTaskExecuter java 62      at org gradle api internal tasks execution ValidatingTaskExecuter execute ValidatingTaskExecuter java 58      at org gradle api internal tasks execution SkipEmptySourceFilesTaskExecuter execute SkipEmptySourceFilesTaskExecuter java 88      at org gradle api internal tasks execution ResolveTaskArtifactStateTaskExecuter execute ResolveTaskArtifactStateTaskExecuter java 46      at org gradle api internal tasks execution SkipTaskWithNoActionsExecuter execute SkipTaskWithNoActionsExecuter java 51      at org gradle api internal tasks execution SkipOnlyIfTaskExecuter execute SkipOnlyIfTaskExecuter java 54      at org gradle api internal tasks execution ExecuteAtMostOnceTaskExecuter execute ExecuteAtMostOnceTaskExecuter java 43      at org gradle api internal tasks execution CatchExceptionTaskExecuter execute CatchExceptionTaskExecuter java 34      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker 1 execute DefaultTaskGraphExecuter java 236      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker 1 execute DefaultTaskGraphExecuter java 228      at org gradle internal Transformers 4 transform Transformers java 169      at org gradle internal progress DefaultBuildOperationExecutor run DefaultBuildOperationExecutor java 106      at org gradle internal progress DefaultBuildOperationExecutor run DefaultBuildOperationExecutor java 61      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker execute DefaultTaskGraphExecuter java 228      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker execute DefaultTaskGraphExecuter java 215      at org gradle execution taskgraph AbstractTaskPlanExecutor TaskExecutorWorker processTask AbstractTaskPlanExecutor java 77      at org gradle execution taskgraph AbstractTaskPlanExecutor TaskExecutorWorker run AbstractTaskPlanExecutor java 58      at org gradle execution taskgraph DefaultTaskPlanExecutor process DefaultTaskPlanExecutor java 32      at org gradle execution taskgraph DefaultTaskGraphExecuter execute DefaultTaskGraphExecuter java 113      at org gradle execution SelectedTaskExecutionAction execute SelectedTaskExecutionAction java 37      at org gradle execution DefaultBuildExecuter execute DefaultBuildExecuter java 37      at org gradle execution DefaultBuildExecuter access 000 DefaultBuildExecuter java 23      at org gradle execution DefaultBuildExecuter 1 proceed DefaultBuildExecuter java 43      at org gradle execution DryRunBuildExecutionAction execute DryRunBuildExecutionAction java 32      at org gradle execution DefaultBuildExecuter execute DefaultBuildExecuter java 37      at org gradle execution DefaultBuildExecuter execute DefaultBuildExecuter java 30      at org gradle initialization DefaultGradleLauncher 3 execute DefaultGradleLauncher java 196      at org gradle initialization DefaultGradleLauncher 3 execute DefaultGradleLauncher java 193      at org gradle internal Transformers 4 transform Transformers java 169      at org gradle internal progress DefaultBuildOperationExecutor run DefaultBuildOperationExecutor java 106      at org gradle internal progress DefaultBuildOperationExecutor run DefaultBuildOperationExecutor java 56      at org gradle initialization DefaultGradleLauncher doBuildStages DefaultGradleLauncher java 193      at org gradle initialization DefaultGradleLauncher doBuild DefaultGradleLauncher java 119      at org gradle initialization DefaultGradleLauncher run DefaultGradleLauncher java 102      at org gradle launcher exec GradleBuildController run GradleBuildController java 71      at org gradle tooling internal provider ExecuteBuildActionRunner run ExecuteBuildActionRunner java 28      at org gradle launcher exec ChainingBuildActionRunner run ChainingBuildActionRunner java 35      at org gradle launcher exec InProcessBuildActionExecuter execute InProcessBuildActionExecuter java 41      at org gradle launcher exec InProcessBuildActionExecuter execute InProcessBuildActionExecuter java 26      at org gradle tooling internal provider ContinuousBuildActionExecuter execute ContinuousBuildActionExecuter java 75      at org gradle tooling internal provider ContinuousBuildActionExecuter execute ContinuousBuildActionExecuter java 49      at org gradle tooling internal provider ServicesSetupBuildActionExecuter execute ServicesSetupBuildActionExecuter java 44      at org gradle tooling internal provider ServicesSetupBuildActionExecuter execute ServicesSetupBuildActionExecuter java 29      at org gradle launcher daemon server exec ExecuteBuild doBuild ExecuteBuild java 67      at org gradle launcher daemon server exec BuildCommandOnly execute BuildCommandOnly java 36      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec WatchForDisconnection execute WatchForDisconnection java 47      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec ResetDeprecationLogger execute ResetDeprecationLogger java 26      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec RequestStopIfSingleUsedDaemon execute RequestStopIfSingleUsedDaemon java 34      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec ForwardClientInput 2 call ForwardClientInput java 74      at org gradle launcher daemon server exec ForwardClientInput 2 call ForwardClientInput java 72      at org gradle util Swapper swap Swapper java 38      at org gradle launcher daemon server exec ForwardClientInput execute ForwardClientInput java 72      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec LogAndCheckHealth execute LogAndCheckHealth java 55      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec LogToClient doBuild LogToClient java 60      at org gradle launcher daemon server exec BuildCommandOnly execute BuildCommandOnly java 36      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec EstablishBuildEnvironment doBuild EstablishBuildEnvironment java 72      at org gradle launcher daemon server exec BuildCommandOnly execute BuildCommandOnly java 36      at org gradle launcher daemon server api DaemonCommandExecution proceed DaemonCommandExecution java 120      at org gradle launcher daemon server exec StartBuildOrRespondWithBusy 1 run StartBuildOrRespondWithBusy java 50      at org gradle launcher daemon server DaemonStateCoordinator 1 run DaemonStateCoordinator java 297      at org gradle internal concurrent ExecutorPolicy CatchAndRecordFailures onExecute ExecutorPolicy java 54      at org gradle internal concurrent StoppableExecutorImpl 1 run StoppableExecutorImpl java 40  Caused by  org gradle api GradleException  Compilation error  See log for more details     at org jetbrains kotlin gradle tasks TasksUtilsKt throwGradleExceptionIfError tasksUtils kt 8      at org jetbrains kotlin gradle tasks KotlinCompile processCompilerExitCode Tasks kt 286      at org jetbrains kotlin gradle tasks KotlinCompile callCompiler kotlin gradle plugin Tasks kt 260      at org jetbrains kotlin gradle tasks KotlinCompile callCompiler kotlin gradle plugin Tasks kt 160      at org jetbrains kotlin gradle tasks AbstractKotlinCompile execute Tasks kt 141      at org gradle internal reflect JavaMethod invoke JavaMethod java 73      at org gradle api internal project taskfactory DefaultTaskClassInfoStore IncrementalTaskAction doExecute DefaultTaskClassInfoStore java 163      at org gradle api internal project taskfactory DefaultTaskClassInfoStore StandardTaskAction execute DefaultTaskClassInfoStore java 134      at org gradle api internal project taskfactory DefaultTaskClassInfoStore StandardTaskAction execute DefaultTaskClassInfoStore java 123      at org gradle api internal tasks execution ExecuteActionsTaskExecuter executeAction ExecuteActionsTaskExecuter java 95      at org gradle api internal tasks execution ExecuteActionsTaskExecuter executeActions ExecuteActionsTaskExecuter java 76          70 more

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Another possible recent solution is changing gradle version to   classpath  com android tools build gradle 3 0 0-rc2    and updating build tool

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I was suffering the same problem I solved it by checking build tab and switch to text mode  Check the console it will show the problems  mine was removing a drawable without deleting the usage and deleting a class without deleting the usage also Text mode button

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In my case  updating com android tools build gradle to last version and rebuild the project in online mode of Gradle was solved the problem

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In my case error was caused by this line      BindColor R color colorAccent      var mColor  Int    0   Solved By       JvmField        BindColor android R color white         ColorInt       internal var mColor  Int   0   Error in GradleConsole   app kaptDebugKotlin e   app build tmp kapt3 stubs debug MainFragment java 23  error   BindColor field type must be  int  or  ColorStateList    com sample MainFragment mColor  e    e      private java lang Integer mColor

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in my case   I was using kotlin extensions to access and bind my views  I had recently moved a view to another screen and forgot to remove its reference from the previous fragment that caused this error    kotlin synthetic extensions are not compile time safe  I really loved this but apparently in big projects  if this happens again I m surely going to get a heart attack

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I Had the same issue and finally discovered the reason  In my case it was a badly written Java method    FormUrlEncoded  POST  register-user    Call lt RegisterUserApiResponse gt  registerUser           Field  email   String email           Field  password   String password                       Field  date   String birthDate       Note the illegal comma after the  date  field  For some reason the compiler could not reveal this exact error  and came with the   app compileDebugKotlin    gt  Compilation error thing

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I changed my project to use Androidx  so I used the migration tool but some files many files   didn t change automatically  I opened each file  activities  enums  fragments  and I found so many errors  I corrected them but the compile still show me incomprehensible errors  After looking for a solution I found this answer that someone said   go to Analyze    Inspect code     Whole Project     It took some time and then showed me the result below     As I corrected the errors I thought were important  I was running the build until the remaining errors were no longer affecting the build   My Android Studio details

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I had misleading error messages similar to the ones posted in the question      Compilation error  See log for more details   And   org gradle api tasks TaskExecutionException  Execution failed for task   app compileDebugKotlin       at org gradle api internal tasks execution ExecuteActionsTaskExecuter executeActions ExecuteActionsTaskExecuter java 100      at org gradle api internal tasks execution ExecuteActionsTaskExecuter execute ExecuteActionsTaskExecuter java 70      at org gradle api internal tasks execution OutputDirectoryCreatingTaskExecuter execute OutputDirectoryCreatingTaskExecuter java 51      at org gradle api internal tasks execution SkipUpToDateTaskExecuter execute SkipUpToDateTaskExecuter java 62      at org gradle api internal tasks execution ResolveTaskOutputCachingStateExecuter execute ResolveTaskOutputCachingStateExecuter java 54      at org gradle api internal tasks execution ValidatingTaskExecuter execute ValidatingTaskExecuter java 60      at org gradle api internal tasks execution SkipEmptySourceFilesTaskExecuter execute SkipEmptySourceFilesTaskExecuter java 97      at org gradle api internal tasks execution CleanupStaleOutputsExecuter execute CleanupStaleOutputsExecuter java 87      at org gradle api internal tasks execution ResolveTaskArtifactStateTaskExecuter execute ResolveTaskArtifactStateTaskExecuter java 52      at org gradle api internal tasks execution SkipTaskWithNoActionsExecuter execute SkipTaskWithNoActionsExecuter java 52      at org gradle api internal tasks execution SkipOnlyIfTaskExecuter execute SkipOnlyIfTaskExecuter java 54      at org gradle api internal tasks execution ExecuteAtMostOnceTaskExecuter execute ExecuteAtMostOnceTaskExecuter java 43      at org gradle api internal tasks execution CatchExceptionTaskExecuter execute CatchExceptionTaskExecuter java 34      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker 1 run DefaultTaskGraphExecuter java 248      at org gradle internal progress DefaultBuildOperationExecutor RunnableBuildOperationWorker execute DefaultBuildOperationExecutor java 336      at org gradle internal progress DefaultBuildOperationExecutor RunnableBuildOperationWorker execute DefaultBuildOperationExecutor java 328      at org gradle internal progress DefaultBuildOperationExecutor execute DefaultBuildOperationExecutor java 199      at org gradle internal progress DefaultBuildOperationExecutor run DefaultBuildOperationExecutor java 110      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker execute DefaultTaskGraphExecuter java 241      at org gradle execution taskgraph DefaultTaskGraphExecuter EventFiringTaskWorker execute DefaultTaskGraphExecuter java 230      at org gradle execution taskgraph DefaultTaskPlanExecutor TaskExecutorWorker processTask DefaultTaskPlanExecutor java 123      at org gradle execution taskgraph DefaultTaskPlanExecutor TaskExecutorWorker access 200 DefaultTaskPlanExecutor java 79      at org gradle execution taskgraph DefaultTaskPlanExecutor TaskExecutorWorker 1 execute DefaultTaskPlanExecutor java 104      at org gradle execution taskgraph DefaultTaskPlanExecutor TaskExecutorWorker 1 execute DefaultTaskPlanExecutor java 98      at org gradle execution taskgraph DefaultTaskExecutionPlan execute DefaultTaskExecutionPlan java 626      at org gradle execution taskgraph DefaultTaskExecutionPlan executeWithTask DefaultTaskExecutionPlan java 581      at org gradle execution taskgraph DefaultTaskPlanExecutor TaskExecutorWorker run DefaultTaskPlanExecutor java 98      at org gradle internal concurrent ExecutorPolicy CatchAndRecordFailures onExecute ExecutorPolicy java 63      at org gradle internal concurrent ManagedExecutorImpl 1 run ManagedExecutorImpl java 46      at java util concurrent ThreadPoolExecutor runWorker ThreadPoolExecutor java 1142      at java util concurrent ThreadPoolExecutor Worker run ThreadPoolExecutor java 617      at org gradle internal concurrent ThreadFactoryImpl ManagedThreadRunnable run ThreadFactoryImpl java 55      at java lang Thread run Thread java 745  Caused by  org gradle api GradleException  Compilation error  See log for more details     at org jetbrains kotlin gradle tasks TasksUtilsKt throwGradleExceptionIfError tasksUtils kt 16      at org jetbrains kotlin gradle tasks KotlinCompile processCompilerExitCode Tasks kt 429      at org jetbrains kotlin gradle tasks KotlinCompile callCompiler kotlin gradle plugin Tasks kt 390      at org jetbrains kotlin gradle tasks KotlinCompile callCompiler kotlin gradle plugin Tasks kt 274      at org jetbrains kotlin gradle tasks AbstractKotlinCompile execute Tasks kt 233      at sun reflect NativeMethodAccessorImpl invoke0 Native Method      at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 62      at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43      at java lang reflect Method invoke Method java 498      at org gradle internal reflect JavaMethod invoke JavaMethod java 73      at org gradle api internal project taskfactory IncrementalTaskAction doExecute IncrementalTaskAction java 46      at org gradle api internal project taskfactory StandardTaskAction execute StandardTaskAction java 39      at org gradle api internal project taskfactory StandardTaskAction execute StandardTaskAction java 26      at org gradle api internal tasks execution ExecuteActionsTaskExecuter 1 run ExecuteActionsTaskExecuter java 121      at org gradle internal progress DefaultBuildOperationExecutor RunnableBuildOperationWorker execute DefaultBuildOperationExecutor java 336      at org gradle internal progress DefaultBuildOperationExecutor RunnableBuildOperationWorker execute DefaultBuildOperationExecutor java 328      at org gradle internal progress DefaultBuildOperationExecutor execute DefaultBuildOperationExecutor java 199      at org gradle internal progress DefaultBuildOperationExecutor run DefaultBuildOperationExecutor java 110      at org gradle api internal tasks execution ExecuteActionsTaskExecuter executeAction ExecuteActionsTaskExecuter java 110      at org gradle api internal tasks execution ExecuteActionsTaskExecuter executeActions ExecuteActionsTaskExecuter java 92          32 more   Solution   I solved it by    Clicking on Gradle  on the right side bar  -   Then under  app  Then choose assembleDebug  or assembleYourFlavor if you use flavors    In Picture   1  amp  2     3     Error will show up in Run  tab

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run gradle assembleDebug --scan in Android studio Terminal  in my case I removed an element in XML and forgotten to remove it from code  but the compiler couldn t compile and show Error Execution failed for task   app compileDebugKotlin    gt  Compilation error  See log for more details to me

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I had a similar problem  The problem was that I incorrectly wrote the properties of the model in the attributes of the view    lt TextView         android layout width  wrap content          android layout height  wrap content          android text    ferm coin value    gt     This part was wrong     ferm coin value    When I wrote the correct property  the error was resolved

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In my case I forgot to add the return type to a function in my inherited class from RoomDatabase   abstract class LocalDb   RoomDatabase         abstract fun progressDao    ProgressDao     The ProgressDao return type was missing

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In my case  I attempted to upgrade play servicesand firebase versions to 15 0  Going back to 11 4 2 fixed my issue

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Below changes worked for me  I change distribution URL  located in gradle-wrapper properties  distributionUrl https    services gradle org distributions gradle-4 9-all zip   And  dependencies       classpath  com android tools build gradle 3 2 1      classpath  org jetbrains kotlin kotlin-gradle-plugin  kotlin version          NOTE  Do not place your application dependencies here  they belong        in the individual module build gradle files       kotlin version 1 2 71

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My scenario   old Kotlin dataclass   data class AddHotelParams val destination  Place   val checkInDate  LocalDate                        val checkOutDate  LocalDate    JsonObject   new Kotlin dataclass   data class AddHotelParams val destination  Place   val checkInDate  LocalDate                        val checkOutDate  LocalDate   val roundTrip  Boolean   JsonObject   The problem was that I forgot to change the object initialization in some parts of the code  I got a generic  compileInternalDebugKotlin  error instead of being told where I needed to change the initialization   changing initialization to all parts of the code resolved the error

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in my case I accidentally changed  version  1 0  to xml version  1 0  in my XML file   I only had to change it back   if you have the same problem and the solutions above didn t work for you  open Gradle Console and scroll to Run with --debug option click it and it will show you more useful info about your error   some notes   this error doesn t appear directly after I make the change in XML it appear only after I change some java code  I think it has something to do with the instant run and build cash

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This line work for me on mac or Linux     gradlew clean assembleDebug

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I Had the same problem and finally reached to the solution   add  --stacktrace --debug  to your command-line options File -  Settings -  Compiler  then run it  This will show the problem unwanted code  in your code

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If you are using AS 3 1 the new build graphical console isn t very helpful for finding out the source of the problem   you need to click on toggle view and see the logs in text format to see the error and if needed to Run with --stacktrace

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I want to add my solution to above  maybe it helps someone  When i create a field on a model via Room and do not generate getter setter for the field  As a result project is not compiling and no clear errors

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On Mac       go to Android Studio   Preferences   Build  Execution  Deployment   Compiler   On Windows       go to File   Settings     Build  Execution  Deployment   Compiler   Now  in the Command-line Options field   add following three flags    --stacktrace --info --scan   like shown below    Now   open the Build window from the bottom of Android studio    Then  there is a button on the left side of the Build window     press this button   you will see detailed logs with exact code that is preventing the project from compiling

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upgraded Android Studio from 3 2 1 to 3 3 and the problem disappeared

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in my case it was unused parameter in room persistence function in DAO class

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I had a same problem  To solve this problem just open your all files recent working files  in Which you made the changes and check did you forget to delete some which should be deleted    In my case the problem was with the Unreferenced code which I was using in one of my file and that code is present in that file which should not be present in that file because I was using an interface which I have deleted from my project but I forget to deleted from one of my file

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I faced the similar problem in no reason  i think it was caused by IDE android studio   I have tried all of above solutions but not worked  Finally  in my own situation  i solved this problem by the following actions  - Close the current project and remove it from the list of projects in android studio  and reopen it by Open an existing Android Studio project  then it may be worked  I hope that my experience will be useful for you

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I got such error after a simple try of code refactoring  It has happened nor after some library was connected neither any changes in gradle  It looked like something in my code was wrong but the compiler could not found the issue  That s why I double checked all changes that I did and found that I had changed somehow method signature in the interface but had not changed it in class that implements it  I got this error twice during one day and decided to share my experience  I hope that it is a temporary compiler bug   Solution 1 Possible solution is to go to File -  Settings -  Compiler -  and add  --stacktrace --debug  to Command-line Options  Read log and try to found the answer of what went wrong   In new Android Studio 3 1    you can enable disable console log details by pressing  Toggle View  on  Build  tab  There you can find the details  Pay attention that both modes can be useful for investigation of the problem s reason  See  https   stackoverflow com a 49717363     Solution 2 Click on Gradle  on the right side bar  then under  app choose assembleDebug  or assembleYourFlavor if you use flavors   Error will show up in Run tab  See  https   stackoverflow com a 51022296  Solution 3 As a last resort  In the android studio  try Analyze -  Inspect Code -  Whole project  Wait until the inspection is over and then correct errors in  General  section and possible ones in other sections   Note The kapt3 can be a source of such bugs  I removed apply plugin   kotlin-kapt  and added kapt   generateStubs   true   into android    section of build gradle  It seems that the previous version of the kapt generator is bugs free   Update  It looks like a bug with kapt is gone on kotlin version 1 2

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This error shows up when there is Kotlin Compilation Error   Run the below command to find where there is Kotlin Compilation Error   gradlew clean assembleDebug  for Windows    gradlew clean assembleDebug  for Linux and Mac    It will show you the exact location on which line there is Kotlin Compilation Error

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i was surprised to find that when i had a class that was closed it produced this vague error  changing it to a open class resolved the issue   before    class DefaultSubscriber lt T gt    Observer lt T gt            after   open class DefaultSubscriber lt T gt    Observer lt T gt

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I have found one solution to this problem    Please follow below these steps    Go to File- Settings- Compiler- add To --stacktrace --debug in Command-line-Options box and then apply  amp  ok  Rebuild a project   Run a project

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In such case look at gradle console it will show the issue in detail with exact location which led to this compilation error   In my case I was using Butterknife in one of my class and I had auto-converted that class to kotlin using android studio s utility  Log in Gradle Console  Executing tasks    app assembleDebug   Configuration on demand is an incubating feature  Configuration  compile  in project   app  is deprecated  Use  implementation  instead  registerResGeneratingTask is deprecated  use registerGeneratedFolders FileCollection   app buildInfoDebugLoader  app preBuild UP-TO-DATE  app preDebugBuild UP-TO-DATE  app compileDebugAidl UP-TO-DATE  app compileDebugRenderscript UP-TO-DATE  app checkDebugManifest UP-TO-DATE  app generateDebugBuildConfig UP-TO-DATE  app generateDebugResValues UP-TO-DATE  app generateDebugResources UP-TO-DATE  app processDebugGoogleServices Parsing json file   Users Downloads myproject app google-services json  app mergeDebugResources UP-TO-DATE  app createDebugCompatibleScreenManifests UP-TO-DATE  app processDebugManifest  app splitsDiscoveryTaskDebug UP-TO-DATE  app processDebugResources  app kaptGenerateStubsDebugKotlin Using kotlin incremental compilation  app kaptDebugKotlin e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ConfirmationDialog java 10  error   BindView fields must not be private or static   com myproject util ConfirmationDialog imgConfirmationLogo  e    e      private android widget ImageView imgConfirmationLogo  e                                         e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ConfirmationDialog java 13  error   BindView fields must not be private or static   com myproject util ConfirmationDialog txtConfirmationDialogTitle  e    e      private android widget TextView txtConfirmationDialogTitle  e                                        e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ConfirmationDialog java 16  error   BindView fields must not be private or static   com myproject util ConfirmationDialog txtConfirmationDialogMessage  e    e      private android widget TextView txtConfirmationDialogMessage  e                                        e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ConfirmationDialog java 19  error   BindView fields must not be private or static   com myproject util ConfirmationDialog txtViewPositive  e    e      private android widget TextView txtViewPositive  e                                        e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ConfirmationDialog java 22  error   BindView fields must not be private or static   com pokkt myproject ConfirmationDialog txtViewNegative  e    e      private android widget TextView txtViewNegative  e                                        e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ExitDialog java 10  error   BindView fields must not be private or static   com myproject util ExitDialog txtViewPositive  e    e      private android widget TextView txtViewPositive  e                                        e   Users Downloads myproject app build tmp kapt3 stubs debug com myproject util ExitDialog java 13  error   BindView fields must not be private or static   com myproject util ExitDialog txtViewNegative  e    e      private android widget TextView txtViewNegative  e                                        e  java lang IllegalStateException  failed to analyze  org jetbrains kotlin kapt3 diagnostic KaptError  Error while annotation processing     at org jetbrains kotlin analyzer AnalysisResult throwIfError AnalysisResult kt 57      at org jetbrains kotlin cli jvm compiler KotlinToJVMBytecodeCompiler compileModules KotlinToJVMBytecodeCompiler kt 144      at org jetbrains kotlin cli jvm K2JVMCompiler doExecute K2JVMCompiler kt 167      at org jetbrains kotlin cli jvm K2JVMCompiler doExecute K2JVMCompiler kt 55      at org jetbrains kotlin cli common CLICompiler exec CLICompiler java 182      at org jetbrains kotlin daemon CompileServiceImpl execCompiler CompileServiceImpl kt 397      at org jetbrains kotlin daemon CompileServiceImpl access execCompiler CompileServiceImpl kt 99      at org jetbrains kotlin daemon CompileServiceImpl compile 1 2 invoke CompileServiceImpl kt 365      at org jetbrains kotlin daemon CompileServiceImpl compile 1 2 invoke CompileServiceImpl kt 99      at org jetbrains kotlin daemon CompileServiceImpl doCompile 2  special  inlined withValidClientOrSessionProxy lambda 1 invoke CompileServiceImpl kt 798      at org jetbrains kotlin daemon CompileServiceImpl doCompile 2  special  inlined withValidClientOrSessionProxy lambda 1 invoke CompileServiceImpl kt 99      at org jetbrains kotlin daemon common DummyProfiler withMeasure PerfUtils kt 137      at org jetbrains kotlin daemon CompileServiceImpl checkedCompile CompileServiceImpl kt 825      at org jetbrains kotlin daemon CompileServiceImpl access checkedCompile CompileServiceImpl kt 99      at org jetbrains kotlin daemon CompileServiceImpl doCompile 2 invoke CompileServiceImpl kt 797      at org jetbrains kotlin daemon CompileServiceImpl doCompile 2 invoke CompileServiceImpl kt 99      at org jetbrains kotlin daemon CompileServiceImpl ifAlive CompileServiceImpl kt 1004      at org jetbrains kotlin daemon CompileServiceImpl ifAlive default CompileServiceImpl kt 865      at org jetbrains kotlin daemon CompileServiceImpl doCompile CompileServiceImpl kt 791      at org jetbrains kotlin daemon CompileServiceImpl access doCompile CompileServiceImpl kt 99      at org jetbrains kotlin daemon CompileServiceImpl compile 1 invoke CompileServiceImpl kt 364      at org jetbrains kotlin daemon CompileServiceImpl compile 1 invoke CompileServiceImpl kt 99      at org jetbrains kotlin daemon CompileServiceImpl ifAlive CompileServiceImpl kt 1004      at org jetbrains kotlin daemon CompileServiceImpl ifAlive default CompileServiceImpl kt 865      at org jetbrains kotlin daemon CompileServiceImpl compile CompileServiceImpl kt 336      at sun reflect NativeMethodAccessorImpl invoke0 Native Method      at sun reflect NativeMethodAccessorImpl invoke NativeMethodAccessorImpl java 62      at sun reflect DelegatingMethodAccessorImpl invoke DelegatingMethodAccessorImpl java 43      at java lang reflect Method invoke Method java 498      at sun rmi server UnicastServerRef dispatch UnicastServerRef java 346      at sun rmi transport Transport 1 run Transport java 200      at sun rmi transport Transport 1 run Transport java 197      at java security AccessController doPrivileged Native Method      at sun rmi transport Transport serviceCall Transport java 196      at sun rmi transport tcp TCPTransport handleMessages TCPTransport java 568      at sun rmi transport tcp TCPTransport ConnectionHandler run0 TCPTransport java 826      at sun rmi transport tcp TCPTransport ConnectionHandler lambda run 0 TCPTransport java 683      at java security AccessController doPrivileged Native Method      at sun rmi transport tcp TCPTransport ConnectionHandler run TCPTransport java 682      at java util concurrent ThreadPoolExecutor runWorker ThreadPoolExecutor java 1142      at java util concurrent ThreadPoolExecutor Worker run ThreadPoolExecutor java 617      at java lang Thread run Thread java 745  Caused by  org jetbrains kotlin kapt3 diagnostic KaptError  Error while annotation processing     at org jetbrains kotlin kapt3 AnnotationProcessingKt doAnnotationProcessing annotationProcessing kt 90      at org jetbrains kotlin kapt3 AnnotationProcessingKt doAnnotationProcessing default annotationProcessing kt 42      at org jetbrains kotlin kapt3 AbstractKapt3Extension runAnnotationProcessing Kapt3Extension kt 205      at org jetbrains kotlin kapt3 AbstractKapt3Extension analysisCompleted Kapt3Extension kt 166      at org jetbrains kotlin kapt3 ClasspathBasedKapt3Extension analysisCompleted Kapt3Extension kt 82      at org jetbrains kotlin resolve jvm TopDownAnalyzerFacadeForJVM analyzeFilesWithJavaIntegration 2 invoke TopDownAnalyzerFacadeForJVM kt 89      at org jetbrains kotlin resolve jvm TopDownAnalyzerFacadeForJVM analyzeFilesWithJavaIntegration TopDownAnalyzerFacadeForJVM kt 99      at org jetbrains kotlin resolve jvm TopDownAnalyzerFacadeForJVM analyzeFilesWithJavaIntegration default TopDownAnalyzerFacadeForJVM kt 76      at org jetbrains kotlin cli jvm compiler KotlinToJVMBytecodeCompiler analyze 1 analyze KotlinToJVMBytecodeCompiler kt 365      at org jetbrains kotlin cli common messages AnalyzerWithCompilerReport analyzeAndReport AnalyzerWithCompilerReport kt 105      at org jetbrains kotlin cli jvm compiler KotlinToJVMBytecodeCompiler analyze KotlinToJVMBytecodeCompiler kt 354      at org jetbrains kotlin cli jvm compiler KotlinToJVMBytecodeCompiler compileModules KotlinToJVMBytecodeCompiler kt 139          40 more    FAILED  app buildInfoGeneratorDebug  FAILURE  Build failed with an exception     What went wrong  Execution failed for task   app kaptDebugKotlin    gt  Internal compiler error  See log for more details    Try  Run with --stacktrace option to get the stack trace  Run with --info or --debug option to get more log output   BUILD FAILED in 32s  16 actionable tasks  7 executed  9 up-to-date   As in my log it clearly shows issues are with declaration of variables with butterknife  So I looked into this issue and was able to solve it

[android] Error:Execution failed for task ':app:compileDebugKotlin'. > Compilation error. See log for more details

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