AAPT2 failing to merge resources on Docker

Question

I'm trying to build an Android application inside a docker container on a CI server and aapt2 is failing to merge the resources.

Base Docker Image is openjdk:8-alpine

The packages being installed in my image from alpine repositories are:

build-base alpine-sdk bash ca-certificates curl gcc git gzip musl-dev openssh-client python python-dev tar unzip wget

Also I'm downloading and installing Glibc from

https://github.com/sgerrand/alpine-pkg-glibc/releases/download/2.25-r0/glibc-2.25-r0.apk

The installed android sdk packages are

build-tools;26.0.0-rc2 platforms;android-25 platform-tools extras;android;m2repository extras;google;m2repository extras;google;google_play_services

The application is currently using Gradle Wrapper 4.0-rc-1

The error is:

FAILURE: Build failed with an exception.

* What went wrong:
Execution failed for task ':app:mergeDebugResources'.
> Error: java.lang.ExceptionInInitializerError

* Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:mergeDebugResources'.
    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.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:64)
    at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
    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: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$1.run(DefaultTaskGraphExecuter.java:242)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:303)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:295)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:177)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:235)
    at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:224)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.processTask(DefaultTaskPlanExecutor.java:121)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:77)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:102)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:96)
    at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:611)
    at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:566)
    at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:96)
    at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
    at org.gradle.internal.concurrent.StoppableExecutorImpl$1.run(StoppableExecutorImpl.java:46)
    at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: com.android.build.gradle.tasks.ResourceException: Error: java.lang.ExceptionInInitializerError
    at com.android.build.gradle.tasks.MergeResources.doFullTaskAction(MergeResources.java:201)
    at com.android.build.gradle.internal.tasks.IncrementalTask.taskAction(IncrementalTask.java:80)
    at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
    at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:168)
    at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:134)
    at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$StandardTaskAction.execute(DefaultTaskClassInfoStore.java:121)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter$1.run(ExecuteActionsTaskExecuter.java:122)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:303)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:295)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:177)
    at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:91)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:111)
    at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92)
    ... 27 more
Caused by: Error: java.lang.ExceptionInInitializerError
    at com.android.ide.common.res2.MergedResourceWriter.postWriteAction(MergedResourceWriter.java:596)
    at com.android.ide.common.res2.MergeWriter.end(MergeWriter.java:45)
    at com.android.ide.common.res2.MergedResourceWriter.end(MergedResourceWriter.java:237)
    at com.android.ide.common.res2.DataMerger.mergeData(DataMerger.java:301)
    at com.android.ide.common.res2.ResourceMerger.mergeData(ResourceMerger.java:412)
    at com.android.build.gradle.tasks.MergeResources.doFullTaskAction(MergeResources.java:194)
    ... 39 more
Caused by: java.util.concurrent.ExecutionException: java.lang.ExceptionInInitializerError
    at com.android.ide.common.res2.MergedResourceWriter.postWriteAction(MergedResourceWriter.java:564)
    ... 44 more
Caused by: java.lang.ExceptionInInitializerError
    ... 45 more
Caused by: java.lang.ExceptionInInitializerError
    at com.android.builder.internal.aapt.v2.AaptV2Jni.lambda$compile$0(AaptV2Jni.java:90)
Caused by: com.android.tools.aapt2.Aapt2Exception: Failed to load shared library '/tmp/aapt2_8990614974494423638.dir/libc++.so'
    at com.android.tools.aapt2.Aapt2Jni.loadLibraryFromResource(Aapt2Jni.java:162)
    at com.android.tools.aapt2.Aapt2Jni.loadSharedLibrariesFromResources(Aapt2Jni.java:204)
    at com.android.tools.aapt2.Aapt2Jni.load(Aapt2Jni.java:97)
    at com.android.tools.aapt2.Aapt2Jni.<clinit>(Aapt2Jni.java:43)
    ... 1 more
Caused by: java.lang.UnsatisfiedLinkError: /tmp/aapt2_8990614974494423638.dir/libc++.so: Error relocating /tmp/aapt2_8990614974494423638.dir/libc++.so: strtoll_l: symbol not found
    at com.android.tools.aapt2.Aapt2Jni.loadLibraryFromResource(Aapt2Jni.java:159)
    ... 4 more


BUILD FAILED in 30s

I tried installing different alpine packages with no luck. I have the feeling that this is related to Glibc and/or Musl libraries, but I don't understand it enough not to know how to solve this problem

Also, everything works fine on a very similar image (alpine based too) with build-tools 25.0.3 and Gradle 3.5.

Any clues? Thanks

Answer 1

I stumble upon the same error. The problem as you suspected is that Alpine Linux ships with Musl instead of GNU libc, the Android SDK tooling requires glibc.

You could use something like this: https://github.com/frol/docker-alpine-glibc, or create a similar image on your own if you're comfortable with someone else compiling glibc for you.