发布时编译时返回 dex 进程的代码 1
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【中文标题】发布时编译时返回 dex 进程的代码 1【英文标题】：Return code 1 for dex process when compile in release 【发布时间】：2018-08-23 11:26:14 【问题描述】：我正在将一个基于 Eclipse 的旧 android 项目移植到 Android Studio (3.0.1)。
当我使用 IDE 在调试中编译时，一切正常，项目编译并在我的设备中成功运行。
但是，当我尝试使用以下命令在发行版中编译时，项目没有编译：
编译命令：
gradlew aR --stacktrace
错误：
Exception is:
org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':ambevClientsynchronizer:transformClassesWithDexForRelease'.
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:63)
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$1.run(DefaultTaskGraphExecuter.java:248)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$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:124)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.access$200(DefaultTaskPlanExecutor.java:80)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:105)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:99)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:625)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:580)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:99)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
Caused by: java.lang.RuntimeException: com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: c
om.android.ide.common.process.ProcessException: Return code 1 for dex process
at com.android.builder.profile.Recorder$Block.handleException(Recorder.java:55)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:104)
at com.android.build.gradle.internal.pipeline.TransformTask.transform(TransformTask.java:213)
at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
at org.gradle.api.internal.project.taskfactory.DefaultTaskClassInfoStore$IncrementalTaskAction.doExecute(DefaultTaskClassInfoStore.java:173)
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:336)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:197)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:107)
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: com.android.build.api.transform.TransformException: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.proces
s.ProcessException: Return code 1 for dex process
at com.android.build.gradle.internal.transforms.DexTransform.transform(DexTransform.java:222)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:222)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:218)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
... 39 more
Caused by: com.android.ide.common.process.ProcessException: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: Return code 1 for dex process
at com.android.builder.core.DexByteCodeConverter.dexInProcess(DexByteCodeConverter.java:178)
at com.android.builder.core.DexByteCodeConverter.runDexer(DexByteCodeConverter.java:150)
at com.android.builder.core.DexByteCodeConverter.convertByteCode(DexByteCodeConverter.java:135)
at com.android.build.gradle.internal.transforms.DexTransform.transform(DexTransform.java:213)
... 42 more
Caused by: java.util.concurrent.ExecutionException: com.android.ide.common.process.ProcessException: Return code 1 for dex process
at com.android.builder.core.DexByteCodeConverter.dexInProcess(DexByteCodeConverter.java:176)
... 45 more
Caused by: com.android.ide.common.process.ProcessException: Return code 1 for dex process
at com.android.builder.internal.compiler.DexWrapper$DexProcessResult.assertNormalExitValue(DexWrapper.java:117)
at com.android.builder.core.DexByteCodeConverter.lambda$dexInProcess$0(DexByteCodeConverter.java:171)
我的 gradle 配置文件：
apply plugin: 'com.android.application'
android
compileSdkVersion rootProject.ext.compileSdkVersion
buildToolsVersion rootProject.ext.buildToolsVersion
defaultConfig
applicationId "hhh"
minSdkVersion rootProject.ext.minSdkVersion
targetSdkVersion rootProject.ext.targetSdkVersion
multiDexEnabled true
signingConfigs
release
storeFile file("xxx")
storePassword 'xxxx'
keyAlias 'xxxx'
keyPassword 'xxxxx'
buildTypes
release
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.txt'
dexOptions
javaMaxHeapSize "4g" //specify the heap size for the dex process
preDexLibraries = false //delete the already predexed libraries
configurations
all*.exclude group: 'xpp3', module: 'xpp3'
packagingOptions
exclude 'META-INF/DEPENDENCIES'
exclude 'META-INF/NOTICE'
exclude 'META-INF/LICENSE'
exclude 'META-INF/LICENSE.txt'
exclude 'META-INF/NOTICE.txt'
dependencies
implementation project(':yyy')
implementation project(':yyyyy')
implementation project(':yyyyyyy')
api fileTree(dir: 'libs', include: ['*.jar'])
compile 'com.android.support:multidex:1.0.0'
有人对导致此问题的原因有一些提示或建议？
更新 1：
在其中一个项目中有一些aidl文件，我们在尝试时可以注意到：
gradlew assembleDebug
项目编译正常。
但是当我们尝试时：
gradlew assembleRelease
我们可以看到所有的类都是在release文件夹中生成的，和debug中生成的类一样，但是，当然是在debug文件夹中，这些类都没有找到：
class not found
【问题讨论】：
你在使用一些库，尤其是 Timber 对我来说将sourceCompatibility = "8" 和 targetCompatibility = "8" 都更改为 7 有帮助
【参考方案1】：
有很多原因会显示"Return code 1 for dex process"。
基本上是说你的设置有问题 （就像什么都不说）。
这里有一些可能的解决方案。
尝试clean或重建您的项目。
您有超过 64k 的方法 - 请参阅 here 以启用多 dex
您的某些库发生冲突。检查 .gradle 文件中的库版本（如果有）（如 com.google.*）
由于您在release中设置了minifyEnabled = false，所以它可以是第二点。
【讨论】：
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