Android Studio Where is the Compiler Error Output Window

Question

When I  Run  my project in Android Studio  in the  Messages  window  I get   Gradle   FAILURE  Build failed with an exception     What went wrong  Execution failed for task   play01 compileDebug    gt  Compilation failed  see the compiler error output for details     Try  Run with --stacktrace option to get the stack trace  Run with --info or --debug option to get more log output    It says  gt  Compilation failed  see the compiler error output for details  So where is the  compiler error output   And Or how do I run with --stacktrace option

User · Answer

Are you on Windows  Launch cmd  find your project folder and run  gradlew build   This should already give you more output than the IDE  you can also use --info  --stacktrace and --debug there

User · Answer

In android studio 2 2 3 you can find output in the gradle console as shown below

User · Answer

Run   gradlew --stacktrace    in a terminal to see the full report  for me it was      Task  app compileDebugJavaWithJavac FAILED       javacTask  source release 1 8 requires target release 1 8   so i added   compileOptions       sourceCompatibility JavaVersion VERSION 1 8     targetCompatibility JavaVersion VERSION 1 8     in app gradle file   android and the build completed successfully

User · Answer

You can also see the error in the Build window by clicking on the toggle button

User · Answer

In my case i had a findViewById reference to a view i had deleted in xml  if you are running AS 3 1 and above    go to Settings   Build  Execution and Deployment   compiler  add --stacktrace to the command line options  click apply and ok At the bottom of AS click on Console Build If you use the stable version 3 1 2 and above  expand the panel and run your app again     you should see the full stacktrace in the expanded view and the specific error

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I am building on what Jorge recommended  Goto File- Settings- compiler   Here you will see a field to add compiler options where you plug in --stacktrace

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In my case I prefer to open the Terminal window on the bottom left  and run gradlew build --info

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after the convert android to androidx   change Import library problem will sol   Like this   import androidx appcompat widget Toolbar    lt  lt   like this   import androidx annotation NonNull    lt  lt   like this  import androidx appcompat app ActionBarDrawerToggle     lt  lt   like this  import androidx drawerlayout widget DrawerLayout       lt  lt   like this  import androidx recyclerview widget RecyclerView        lt  lt   like this  import androidx appcompat app AppCompatActivity         lt  lt   like this

User · Answer

For Android Studio 3 1  select the icon below the Build one in the Build window     By Android Studio 3 3  possibly in 3 2 1   the icon has changed  though the location is the same     The build window should open when you run a build action  e g  from the Build menu   If you don t see it  you can try the  Build  button along the bottom of the window  also visible in the above screenshots   or through the menus View   Tool Windows   Build

User · Answer

It s really straightforward to set up  Just go to the Compiler settings at Android Studio 2 2 3 and set the --stacktrace command     Then run the app again

User · Answer

This answer is outdated  For Android 3 1 Studio go to this answer  One thing you can do is deactivate the external build  To do so click on  compiler settings icon  in the  Messages Make  panel that appears when you have an error  You can also open the compiler settings by going to File -  Settings -  Compiler   Thanx to  maxgalbu for this tip      Uncheck  Use External build     And you will see the errors in the console  EDIT  After returning to  internal build  again you may get some errors  you can solve them this way  Android Studio  disabling  quot External build quot  to display error output create duplicate class errors

User · Answer

If you are in android studio 3 1  Verify if file- Project Structure -  Source compatibility is empty  it should not have 1 8 set   then press ok  the project will sync and error will disappear

User · Answer

Just click on the  quot Build quot  node in the Build Output  From some reason the  quot Compilation failed quot  node just started being automatically selected and for that the description window is very unhelpful

User · Answer

I solved this error  Compilation failed to see the compiler error output for details   The solution is very Simple    Add in a Gradle below a line of code  implementation  com google android gms play-services-ads 15 0 0

User · Answer

For Android Studio v4 0 As others have mentioned  the  quot Messages quot  window that was evidently present in AS 3   no longer exists in 4 0  or else it s hidden very  very well   After wasting far too much time on this  I ve found another way to view those compile errors   Open your Gradle tool window  By default  it s on the right edge toward the top    If you don t see it there  use View  gt  Tool Windows  gt  Gradle   In the Gradle window  open your app s root option and run Tasks  gt  build  gt  build     The Run tool window should open automatically  where you ll see details about the cause of the build error    If it doesn t open automatically  you can access it through View  gt  Tool Windows  gt  Run  Hopefully that gives you all the info you need  If not though  try   Go to File  gt  Settings  gt  Build  Execution  Deployment  gt  Compiler  In the Command-line Options  add --scan    Apply and OK  then try the Gradle build over again

[gradle] Android Studio: Where is the Compiler Error Output Window?

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