Hello,
I have been trying to upgrade to the latest gradle plugin and tools and have been having some issues. I upgraded Android gradle plugin from 3.1.4 to 3.2.1 and gradle version from 4.4-all to 4.6-all.
The issue points towards the merge resources step and more specifically an error with duplicate values for some android defined styles. Below is the full error stack trace.
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':SafetyMapLibrary:mergeSafetyMapQADebugResources'.
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:103)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:73)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:59)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:101)
at org.gradle.api.internal.tasks.execution.FinalizeInputFilePropertiesTaskExecuter.execute(FinalizeInputFilePropertiesTaskExecuter.java:44)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:91)
at org.gradle.api.internal.tasks.execution.ResolveTaskArtifactStateTaskExecuter.execute(ResolveTaskArtifactStateTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.SkipTaskWithNoActionsExecuter.execute(SkipTaskWithNoActionsExecuter.java:59)
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$1.run(DefaultTaskGraphExecuter.java:256)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$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:249)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:238)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$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$1.execute(DefaultTaskPlanExecutor.java:98)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:663)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:597)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:98)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:748)
Caused by: org.gradle.internal.UncheckedException: java.util.concurrent.ExecutionException: com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource compilation failed
Output: /Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
Output: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0.aar/6d8c7372a150e4e89cd6acb9d723d083/res/values/values.xml:1170:5-1184:25: AAPT: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0.aar/6d8c7372a150e4e89cd6acb9d723d083/res/values/values.xml:1170:5-1184:25: AAPT: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:63)
at org.gradle.internal.UncheckedException.throwAsUncheckedException(UncheckedException.java:40)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:76)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:50)
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$1.run(ExecuteActionsTaskExecuter.java:124)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$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:113)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:95)
... 33 more
Caused by: java.util.concurrent.ExecutionException: com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource compilation failed
Output: /Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
Output: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0.aar/6d8c7372a150e4e89cd6acb9d723d083/res/values/values.xml:1170:5-1184:25: AAPT: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0.aar/6d8c7372a150e4e89cd6acb9d723d083/res/values/values.xml:1170:5-1184:25: AAPT: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
at java.util.concurrent.ForkJoinTask.get(ForkJoinTask.java:1006)
at com.android.ide.common.workers.ExecutorServiceAdapter.close(ExecutorServiceAdapter.kt:56)
at com.android.build.gradle.internal.aapt.WorkerExecutorResourceCompilationService.close(WorkerExecutorResourceCompilationService.kt:67)
at com.android.build.gradle.tasks.MergeResources.doFullTaskAction(MergeResources.java:324)
at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:106)
at sun.reflect.GeneratedMethodAccessor1608.invoke(Unknown Source)
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)
... 43 more
Caused by: com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource compilation failed
Output: /Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
Output: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0.aar/6d8c7372a150e4e89cd6acb9d723d083/res/values/values.xml:1170:5-1184:25: AAPT: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/.gradle/caches/transforms-1/files-1.1/appcompat-v7-28.0.0.aar/6d8c7372a150e4e89cd6acb9d723d083/res/values/values.xml:1170:5-1184:25: AAPT: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
at com.android.build.gradle.internal.res.Aapt2ErrorUtils.rewriteException(Aapt2ErrorUtils.kt:97)
at com.android.build.gradle.internal.res.Aapt2ErrorUtils.rewriteCompileException(Aapt2ErrorUtils.kt:55)
at com.android.build.gradle.internal.res.Aapt2CompileWithBlameRunnable$run$1.invoke(Aapt2CompileWithBlameRunnable.kt:39)
at com.android.build.gradle.internal.res.Aapt2CompileWithBlameRunnable$run$1.invoke(Aapt2CompileWithBlameRunnable.kt:28)
at com.android.build.gradle.internal.res.namespaced.Aapt2DaemonManagerService.useAaptDaemon(Aapt2DaemonManagerService.kt:71)
at com.android.build.gradle.internal.res.namespaced.Aapt2DaemonManagerService.useAaptDaemon$default(Aapt2DaemonManagerService.kt:69)
at com.android.build.gradle.internal.res.Aapt2CompileWithBlameRunnable.run(Aapt2CompileWithBlameRunnable.kt:34)
at com.android.ide.common.workers.ExecutorServiceAdapter$submit$submission$1.run(ExecutorServiceAdapter.kt:39)
at java.util.concurrent.ForkJoinTask$AdaptedRunnableAction.exec(ForkJoinTask.java:1386)
at java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:289)
at java.util.concurrent.ForkJoinPool$WorkQueue.runTask(ForkJoinPool.java:1056)
at java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1692)
at java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:157)
Caused by: com.android.builder.internal.aapt.v2.Aapt2Exception: Android resource compilation failed
Output: /Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: duplicate value for resource 'attr/tabMode' with config ''.
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml:2915: error: resource previously defined here.
Command: /Users/Orrin/.gradle/caches/transforms-1/files-1.1/aapt2-3.2.1-4818971-osx.jar/5b2708d87ce41d9f75493817d78022b3/aapt2-3.2.1-4818971-osx/aapt2 compile --pseudo-localize \
--legacy \
-o \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/res/merged/safetyMapQA/debug \
/Users/Orrin/git-hub-projects/android/android/SafetyMapLibrary/build/intermediates/incremental/mergeSafetyMapQADebugResources/merged.dir/values/values.xml
Daemon: AAPT2 aapt2-3.2.1-4818971-osx Daemon #0
at com.android.builder.internal.aapt.v2.Aapt2DaemonImpl.doCompile(Aapt2DaemonImpl.kt:142)
at com.android.builder.internal.aapt.v2.Aapt2Daemon.compile(Aapt2Daemon.kt:81)
at com.android.builder.internal.aapt.v2.Aapt2DaemonManager$LeasedAaptDaemon.compile(Aapt2DaemonManager.kt:170)
at com.android.build.gradle.internal.res.Aapt2CompileWithBlameRunnable$run$1.invoke(Aapt2CompileWithBlameRunnable.kt:37)
... 10 more