Error com android tools aapt2 Aapt2Exception AAPT2 error check logs for details

Question

This is the output of my Gradle console  I am unable to build my project  D  Android Projects      app src main res layout topic view header xml Error error  resource attr     aka -packagename-  attr     not found  Error error  resource attr     aka -packagename- attr     not found  Error error  resource attr     aka -packagename- attr     not found  Error resource attr     aka -packagename- attr     not found  Error resource attr     aka -packagename- attr     not found  Error resource attr     aka -packagename- attr     not found  Error failed linking file resources  Error java util concurrent ExecutionException   java util concurrent ExecutionException   com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for details Error java util concurrent ExecutionException   com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for details Error com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for  details Error Execution failed for task   app processDebugResources    gt  Failed to execute aapt Information BUILD FAILED in 27s Information 11 errors Information 0 warnings   Android Studio 3 0 RC 2

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I tried everything suggested on here and many other sites, I eventually figured out that the problem was with Bitdefender blocking aapt....

If you have Bitdefender installed then you need to turn aapt & aapt2 "Application Access" on individually.

Hope this is of use.

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I just had this problem when trying to use data bind and declaring the layout tag  I know it is a bit late but for the sake of anyone encountering this problem  What I did to resolve the issue after so many attempts was that on your root layout when you are not using data bind say for example this      lt android support constraint ConstraintLayout xmlns android  http   schemas android com apk res android          xmlns app  http   schemas android com apk res-auto          xmlns tools  http   schemas android com tools          android layout width  match parent          android layout height  match parent          tools context   MainActivity  gt       lt  android support constraint ConstraintLayout gt    remove the   xmlns android  http   schemas android com apk res android          xmlns app  http   schemas android com apk res-auto          xmlns tools  http   schemas android com tools    and just put it on your layout tag that is if you are using data binding    lt layout xmlns android  http   schemas android com apk res android      xmlns app  http   schemas android com apk res-auto      xmlns tools  http   schemas android com tools  gt    lt  layout gt    and hopefully it will work  the android enableAapt2 false didn t work for me so I have to remove everything and try to figure out why I get the error when I put layout tag and use data binding thus I came up with the solution  Hope it helps

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Delete the  idea folder  and then try again  Make sure that you are using an open network

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In my case i was using wrong color code  CC00000 which is invalid because it has 7 digit but color code should have 3 or 6 or 8 digit plus   prefix

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In my case the real problem was that after generating Image Asset to generate launcher mipmap icon for my project  the generated file ic launcher foreground xml had error inside  was wrongly generated   There was missing closing xml tag in the end of file   lt    vector  was missing

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As  Izabela Orlowska pointed out  In my case the problem occurred due to some files that could not be found inside the gradle cache folder   Windows OS   The default gradle path was inside my user folder  the path contained umlauts and a space   I moved the gradle folder by setting GRADLE HOME and GRADLE USER HOME environment variable to some newly created folder without umlauts or spaces in path   This fixed the problem for me

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I was getting this error when the project name was very long  and the location I was saving the project in  added to it  Moving the project to another location so that the file names are not crossing the system limit resolved the error for me     C  Users  lt UserName gt  AndroidStudioProjects From Github AdvancedAndroid Emojify-TLIB 02-Exercise-DetectFaces AdvancedAndroid Emojify-TLIB 02-Exercise-DetectFaces app build intermediates incremental mergeDebugResources merged dir values values xml Error error  file not found  Error java util concurrent ExecutionException  com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for details Error Execution failed for task   app mergeDebugResources   Error  java util concurrent ExecutionException  com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for details

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UPDATE  A new version of Gradle and Android-gradle-plugin is available that fixes these issues   build gradle  top level   buildscript       dependencies           classpath  com android tools build gradle 3 2 1            gradle-wrapper properties  distributionUrl https    services gradle org distributions gradle-4 8-all zip     PREVIOUS ANSWER  If you disable AAPT2 you are just hiding the real issue   Please be aware that AAPT1might be removed in the future therefore you are forced to use AAPT2  Actually the migration guide isn t hard to follow since you don t see that much changes at the same time this way is future proof      Element hierarchies in the Android manifest      In previous versions of AAPT  elements nested in incorrect nodes in   the Android manifest are either ignored or result in a warning  For   example  consider the following sample    lt manifest xmlns android  http   schemas android com apk res android     package  com example myname myapplication  gt      lt application                    lt activity android name   MainActivity  gt              lt intent-filter gt                  lt action android name  android intent action MAIN    gt                  lt category android name  android intent category LAUNCHER    gt              lt  intent-filter gt              lt action android name  android intent action CUSTOM    gt          lt  activity gt      lt  application gt   lt  manifest gt     Therefore you must check first if your really follow the correct Manifest structure as showed below      Manifest file structure      The code snippet below shows the general structure of the manifest   file and every element that it can contain  Each element  along with   all of its attributes  is fully documented in a separate file     lt manifest gt        lt uses-permission   gt       lt permission   gt       lt permission-tree   gt       lt permission-group   gt       lt instrumentation   gt       lt uses-sdk   gt       lt uses-configuration   gt         lt uses-feature   gt         lt supports-screens   gt         lt compatible-screens   gt         lt supports-gl-texture   gt          lt application gt            lt activity gt               lt intent-filter gt                   lt action   gt                   lt category   gt                   lt data   gt               lt  intent-filter gt               lt meta-data   gt           lt  activity gt            lt activity-alias gt               lt intent-filter gt         lt  intent-filter gt               lt meta-data   gt           lt  activity-alias gt            lt service gt               lt intent-filter gt         lt  intent-filter gt               lt meta-data  gt           lt  service gt            lt receiver gt               lt intent-filter gt         lt  intent-filter gt               lt meta-data   gt           lt  receiver gt            lt provider gt               lt grant-uri-permission   gt               lt meta-data   gt               lt path-permission   gt           lt  provider gt            lt uses-library   gt        lt  application gt    lt  manifest gt

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Add build gradle in-app level aaptOptions                cruncherEnabled   false

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Having the same issue here  As pointed out by  Izabela Orlowska  this problem is most likely caused by special characters in path  android grandle files  resources etc      For me  having r   in folder name caused all the problems  Make sure you do not have any special characters in paths  Disabling AAPT2 is only a temporary  solution   Your project path contains non-ASCII characters android studio

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Important Update     Do not add this line to your project as other answers   Because it is   already resolved in newer Gradle versions    You can update your build gradle version in Project level build gradle to latest    buildscript       dependencies              choose latest if available         classpath  com android tools build gradle 3 3 0-alpha06            and gradle-wrapper properties     choose latest if available distributionUrl https    services gradle org distributions gradle-4 9-all zip   That s All  Sync and Run  Bingo   More info Android Documentation  If you add  you will get an warning android enableAapt2 false     WARNING  The option  android enableAapt2  is deprecated and should not   be used anymore  Use  android enableAapt2 true  to remove this   warning  It will be removed at the end of 2018

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Check gradle console tab in android studio  by default in bottom right corner   In my case there were errors like this   C  Users Jozef Bar  k  gradle caches transforms-1 files-1 1 appcompat-v7-25 4 0 aar d68bb9d2059935a7891196f4dfb81686 res drawable-hdpi-v4 abc ic menu share mtrl alpha png  error  file not found   Error  java util concurrent ExecutionException  com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for details  app mergeDebugResources FAILED   I solved the issue setting gradle user home to another location without white or special characters    C  Android  gradle   You can configure it setting  Service directory path  in Gradle settings dialog  In my case it was necessary to delete old  gradle directory on previous location and restart android studio

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Since at some point in the future the support for AAPT 1  will be deprecated  it would be good to identify the reason for the error you reported  Could you provide the contents of the  app src main res layout topic view header xml file  From the question marks it is possible that you are using non-ASCII characters  which AAPT2 still has some trouble with  If it s indeed non-ASCII characters then please follow the bug on https   issuetracker google com 68262818   Update  The issue is fixed in android gradle plugin version 3 2 0-alpha11 or newer

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In my case I have update compile SDK and build SDK version to 30 and added  requestLegacyPermission true   in android manifest file  as I was accessing the storage for reading and writing  later when I edited the compile SDK and build SDK version and get back to version 26 then I forgot to remove requestLegacyPermission true   in Manifest file  Reason  requestLegacyPermission was introduced in Android 10 so that s the reason Manifest was not recognizing this as I updated Compile SDK and Build SDK to 26

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I had an error in my XML layout  So check your xml layout for errors

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I had this issue      AAPT2 error  check logs for details   because i have added Quotation Marks    to my string file without using Backslash     error text    lt string name  no internet  gt You don t have internet connection  lt  string gt    fixed text   lt string name  no internet  gt You don  t have internet connection  lt  string gt    so  check special character correctly added to your string file

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Check following things in your project    Make sure any XML file doesn t have blank space at starting of the file  Make sure that any drawable file doesn t have any issue like capital letters or any special symbols in name  If your aapt2 exe is missing continuously then please scan your full PC  May be there is a virus which is removing adb exp or aapt2 exe   Hope you will get solution

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I also encountered this error  For me  it was when changing the target SDK from 26 down to 25  I was able to fix the problem by changing the appcompat dependency version from   implementation  com android support appcompat-v7 26 1 0   to   implementation  com android support appcompat-v7 25 4 0   This will allow the compiler to access the styling attributes that it is currently unable to find  This will actually fix the problem instead of masking the real issue as Enzokie suggested

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I also face this problem   AAPT2 error  check logs for details  with studio version 3 1 2 when first time building app   I was using  com android support appcompat-v7 26 1 0 and some styles were not found when i see the error logs  So changed it to  com android support appcompat-v7 25 3 1  from my working project and issue got resolved    Try it   If still you face problem try for v7 26  in place of exact version  This will definitely resolve issue

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I fixed the ERROR with three steps  1  I checked for the problem SOURCE  2  Provided the correct string text  it was the CAUSE  3  I cleaned the project  you will find it under BUILD

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For AAPT2 error  check logs for details or error  failed linking file resources  errors   Check your  xml files that contains android background    and remove this empty attribute can solve your problem

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I encountered the same issue  searched on google  tried a lot of solutions  none worked  Until I found the golden key of solving this    gradlew assembleDebug   Try this command in git bash  the console will tell exactly which line has errors  Then you improve it  and run the command again  until compilation succeeds

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I got same error AAPT2 error  check logs for details  and i applied above solutions  as per most common solution  i was opened gradle properties and add line   android enableAapt2 false  for solution  but i got an error  Process  command  D  Android sdk Sdk build-tools 27 0 3 aapt exe   finished with non-zero exit value 1  But after many searches i found that there is problem in layout s xml file that i was repeat lines in layout s xml file which is as below   xmlns android  http   schemas android com apk res android  xmlns app  http   schemas android com apk res-auto    Remove Repeat lines from xml file and rebuild project and Done

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Ensure that you use valid file types in your src main res raw directory  In my case I had copied a  mov file along with a bunch of other files into my res raw directory  I suspect the issue was that aapt was trying to process the  mov file and did not know what to do with it

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In my case removing the pre-existing build folder and retrying solved the problem

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I had a very similar problem  It was solved by deleting gradle s cache     gradle caches on linux   which forced android studio to re download and re generate everything

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As suggested by others   android enableAapt2 false   is the most common solution   But in my case  the error was due different versions in compileSdkVersion and buildToolsVersion   Make sure that the major version is maintained the same

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My problem was due to an image file name ending with  9 png  I changed the ending to  png and the problem disappeared  I got the hint from the stack trace in Gradle console  The top message was  Execution failed for task  app mergeDebugResources  and the bottom message was  com android builder png AaptProcess NotifierProcessOutput out   I look forward to the day when Gradle outputs more helpful error messages

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In my case it was fixed by adding a reference to the constraint-layout package      implementation  com android support constraint constraint-layout 1 1 0

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This error message  AAPT2 error  check logs for details   is not helpful because it doesn t tell you what the real problem is   In my case  it was due to a missing resource XML drawable file    error  failed linking file resources   org gradle tooling BuildException  Failed to process resources  see aapt output above for details    I only figured out because I undid the changes in the XML file  and this time I got a more helpful message   error  resource drawable ic filter off  aka com xxx drawable ic filter off  not found   Message kind ERROR  text error  resource drawable ic filter off  aka com xxx drawable ic filter off  not found   sources  C  code xxx app src main res layout app bar main xml 69   original message   tool name Optional of AAPT

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Sometimes   be careful with property depth of the image   and name for image   exemple   ic xxxxx xxxx - Copie

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Disabling the AAPT2 mght cause issue in further development  In my case the error was generated when I created the app icon    lt vector xmlns android  http   schemas android com apk res android      android width  108dp      android height  108dp      android viewportWidth  Infinity      android viewportHeight  Infinity  gt   lt path android fillColor   26A69A        android pathData  M0 0h108v108h-108z   gt   lt path android fillColor   00000000  android pathData  M79 19L79 89        android strokeColor   33FFFFFF  android strokeWidth  0 8   gt      I solve it by removing this line      android viewportWidth  Infinity      android viewportHeight  Infinity

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Looks like a resources related error  I would start there   I got this   Error com android tools aapt2 Aapt2Exception  AAPT2 error  check logs for details   first time related to pictures  Resize solved it  Or another time just repaired the links to resources

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If you ve seen this error after trying to run individual Android implementation tests or test classes  by clicking on the run icon in the gutter  in a Kotlin project in Android Studio 3 0 1  you can get around the error by instead running the full test package  by right-clicking on the test package and choosing  Run tests in        There is a known bug in Android Studio 3 0 1 that causes the IDE to run Kotlin implementation tests as regular JUnit tests  which caused the OP s error message to get shown on my machine  The bug is tracked at https   issuetracker google com issues 71056937  It appears to have been fixed in Android Studio 3 1 Canary 7

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I had exactly the same issue  After updating to Android Studio 3 1 2 my project wouldn t compile with an AAPT2 error telling me some of my drawables which are referenced by styles xml could not be found  Disabling AAPT2 isn t a solution anymore  since the setting is deprecated and will be removed at the end of 2018   Culprit was an empty line just before the xml decleration in a totally unrelated layout xml file    So the layout xml file started like this     empty line    lt  xml version  1 0  encoding  utf-8   gt    Removed the empty line and everything worked like a charm again  Unbelievable and unlikely  but true   Android Studio actually gave a warning because the file didn t start with the xml decleration  because of the empty line   But the warning is only visible when the file is opened in the editor

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Most probably this happen because of some silly mistake in layout file   in my case case I have copied a textview from another project but the backgroundColor resource was not available in my current project    The thing that it was not showing the error at run time but gives above error while compile time    You can find out where the exact error in your xml by following the process      Click on the Gradle tab in right side of Android Studio -  Open the projects build directory as shown in below image -  Run the assembleDebug    -- The error will be shown like in below image

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If you are using Kotlin getting error because of some mistakes in xml files  In kotlin its very hard to find xml errors  build getting fail simply   To know the exact error log run below command in Android Studio Terminal and it is easy to fix the errors     gradlew clean   gradlew assemble

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Update 2  Follow this approach   You shouldn t do this now  Instead fix all the errors   This is only a workaround until it s removed  After that  you ll need to fix errors manually anyways   Try to update your gradle plugin to 3 3 0-alpha06 to check if that fixes your issue   Update 1   Non-ascii characters issues have been fixed in AAPT2 and android gradle plugin now  yay    Instead of disabling AAPT2 now you can just use android gradle plugin version 3 2 0-alpha11 or newer and you should not encounter this error anymore    Original Answer  Aapt2 is enabled by default when you use android plugin for gradle 3 0    This is to     improve incremental resource processing   as stated here   But if you are facing issues with it  you can switch back to previous version by adding this in gradle properties  android enableAapt2 false

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Check and try below things  Issue should be resolved    First of all check your log from bottom of the build window whether any error related to project showing or not  If error showing then fix all of those  Now build and run again fix all of the error comes up  It will eliminate aapt2 issue without changing android gradle plugin to 3 2 0  Secondly if there is not any project related error showing in the build log but still showing aapt2 error then you can fix it by following below steps    Update your android gradle plugin in your project level build gradle file like below   classpath  com android tools build gradle 3 2 0-alpha13    Now update android enableAapt2 true  Then check and build your project   Any of these steps should work to fix aapt related issues

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Closing the project and restarting android studio fixed this issue for me   While restarting  android studio notified that it needed to download missing SDKs  so once that was taken care of  the issue was fixed

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I have also had such a problem  the original is my computer s system tray this path       C    Users    appear special characters     android appeared in Chinese    and now I changed the path to       C    Users   hjc    android     The reason is the problem of special characters It is for this reason that leads to gravel appt2Exception problems

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Don t use this android enableAapt2 false   this is not a solution   find out the error which is exactly show in your Build Output box   click on Toggle view to find exact error or exception use    compileSdkVersion 28  buildToolsVersion  28 0 3     use this on gradel-wrapper    distributionUrl https    services gradle org distributions gradle-4 10 1-all zip   and follow the instruction  delete or update external library or dependencies

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Check if any of your new XML files has an issue  Go to Android issues and see if there are XML files there  However  the error doesn t show on the right XML file that has the problem   In my case  I added two headers in the same XML file    Something like that

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I solved this issue by downgrading classpath  com android tools build gradle 3 2 1  and distributionUrl https    services gradle org distributions gradle-4 6-all zip

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The Resource Exception means there is an error with your resources  any resource folder file is corrupted  try to open all images in drawable folder to see if these are opening fine   There is a good command to check for corrupted resource pngs   f -name    png    xargs -L 1 -I   file  -I      grep -v  image png  charset binary

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I got this error   com android tools aapt2 Aapt2Exception  AAPT2 error    due to wrong filename of one of my  drawable item in layer-list    And I resolved it by changing the filename to correct one

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I am not sure if this has been answered yet for you but allow me to weigh in  I confronted a similar problem recently and I was able to pinpoint the exact problem from the build tab next to the logcat  My problem was caused by a fontfamily error in the XML  I am using the latest version of Android Studio with the March 2018 update

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I was using on wrong way an coordinator layout attribute  I removed that and it works  Check your layout  app layout constraintVertical bias  parent    That should be a numeric value not literal    tiny mistake

[android] Error:com.android.tools.aapt2.Aapt2Exception: AAPT2 error: check logs for details

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