我试图从我的项目中完全删除firebase依赖项，但我已经设法完全搞砸了我的gradle，我需要帮助才能让它再次运行。我需要谷歌播放服务依赖，因为我正在使用谷歌地图和地理围栏。这是我每次尝试重建项目时都会遇到的错误。
java.lang.RuntimeException: com.android.build.api.transform.TransformException: Error while generating the main dex list.
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:212)
at sun.reflect.GeneratedMethodAccessor896.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)
at org.gradle.api.internal.project.taskfactory.IncrementalTaskAction.doExecute(IncrementalTaskAction.java:46)
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$1.run(ExecuteActionsTaskExecuter.java:121)
at org.gradle.internal.progress.DefaultBuildOperationExecutor$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:110)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:92)
at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.execute(ExecuteActionsTaskExecuter.java:70)
at org.gradle.api.internal.tasks.execution.OutputDirectoryCreatingTaskExecuter.execute(OutputDirectoryCreatingTaskExecuter.java:51)
at org.gradle.api.internal.tasks.execution.SkipUpToDateTaskExecuter.execute(SkipUpToDateTaskExecuter.java:62)
at org.gradle.api.internal.tasks.execution.ResolveTaskOutputCachingStateExecuter.execute(ResolveTaskOutputCachingStateExecuter.java:54)
at org.gradle.api.internal.tasks.execution.ValidatingTaskExecuter.execute(ValidatingTaskExecuter.java:60)
at org.gradle.api.internal.tasks.execution.SkipEmptySourceFilesTaskExecuter.execute(SkipEmptySourceFilesTaskExecuter.java:97)
at org.gradle.api.internal.tasks.execution.CleanupStaleOutputsExecuter.execute(CleanupStaleOutputsExecuter.java:87)
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$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:328)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:199)
at org.gradle.internal.progress.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:110)
at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$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: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$1.execute(DefaultTaskPlanExecutor.java:98)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:626)
at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:581)
at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:98)
at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1142)
at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:617)
at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
at java.lang.Thread.run(Thread.java:745)
Caused by: com.android.build.api.transform.TransformException: Error while generating the main dex list.
at com.android.build.gradle.internal.transforms.D8MainDexListTransform.transform(D8MainDexListTransform.kt:127)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:221)
at com.android.build.gradle.internal.pipeline.TransformTask$2.call(TransformTask.java:217)
at com.android.builder.profile.ThreadRecorder.record(ThreadRecorder.java:102)
... 47 more
Caused by: com.android.builder.multidex.D8MainDexList$MainDexListException: com.android.tools.r8.errors.CompilationError: Program type already present: com.google.firebase.FirebaseApiNotAvailableException
at com.android.builder.multidex.D8MainDexList.generate(D8MainDexList.java:87)
at com.android.build.gradle.internal.transforms.D8MainDexListTransform.transform(D8MainDexListTransform.kt:114)
... 50 more
Caused by: com.android.tools.r8.errors.CompilationError: Program type already present: com.google.firebase.FirebaseApiNotAvailableException
at com.android.tools.r8.utils.ProgramClassCollection.resolveClassConflictImpl(ProgramClassCollection.java:64)
at com.android.tools.r8.utils.ProgramClassCollection.lambda$create$0(ProgramClassCollection.java:25)
at java.util.concurrent.ConcurrentHashMap.merge(ConcurrentHashMap.java:1990)
at com.android.tools.r8.utils.ProgramClassCollection.create(ProgramClassCollection.java:24)
at com.android.tools.r8.graph.LazyLoadedDexApplication$Builder.build(LazyLoadedDexApplication.java:121)
at com.android.tools.r8.dex.ApplicationReader.read(ApplicationReader.java:122)
at com.android.tools.r8.dex.ApplicationReader.read(ApplicationReader.java:86)
at com.android.tools.r8.GenerateMainDexList.run(GenerateMainDexList.java:40)
at com.android.tools.r8.GenerateMainDexList.run(GenerateMainDexList.java:110)
at com.android.builder.multidex.D8MainDexList.generate(D8MainDexList.java:83)
... 51 more
这就是我的gradle文件：
apply plugin: 'com.android.application'
android {
compileSdkVersion 26
defaultConfig {
multiDexEnabled true
applicationId "com1032.cw1.tm00591.tm00591_todolist"
minSdkVersion 19
targetSdkVersion 26
versionCode 5
versionName "5.0"
testInstrumentationRunner "android.support.test.runner.AndroidJUnitRunner"
}
buildTypes {
release {
minifyEnabled false
proguardFiles getDefaultProguardFile('proguard-android.txt'), 'proguard-rules.pro'
}
}
}
dependencies {
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation 'com.android.support:appcompat-v7:26.1.0'
implementation 'com.android.support:mediarouter-v7:26.1.0'
implementation 'com.android.support.constraint:constraint-layout:1.0.2'
implementation 'com.android.support:design:26.1.0'
testImplementation 'junit:junit:4.12'
androidTestImplementation 'com.android.support.test:runner:1.0.1'
androidTestImplementation 'com.android.support.test.espresso:espresso-core:3.0.1'
compile 'com.google.android.gms:play-services:9.0.0'
compile 'com.google.android.gms:play-services-location:15.0.0'
}
答案 0 :(得分：4)
我认为这是因为您混合了play-services个版本9.0.0和15.0.0。您应该始终使用相同的版本。
就我而言，之所以发生这种情况，是因为我将AndroidX库androidx.*与旧的支持库com.android.support*混合在一起。
可以找到迁移指南here。
作为旁注，play-services-location中包含play-services，因此无需同时具有这两种依赖关系。
但是，最好使用播放服务子依赖项而不是使用整个包。
答案 1 :(得分：2)
尝试Build > Make Project代替Clean Project，Rebuild Project，甚至运行应用。这就是我的伎俩。
答案 2 :(得分：2)
您正在使用不兼容的播放服务。更新播放服务的版本。 See latest play-service versions在这里。
不正确
implementation 'com.google.android.gms:play-services:9.0.0'
它将在您的项目中添加所有播放服务依赖项，这将导致apk异常大。
正确
implementation 'com.google.android.gms:play-services-maps:15.0.1'
implementation 'com.google.android.gms:play-services-places:15.0.1'
仅添加所需的依赖项。
建议
此外，您需要在28个版本之后迁移到androidx。这是我的answer，可帮助您迁移。因为android不会再更新28。您可以找到公告here.
修订版28.0.0量产
这将是android.support下的最后一个功能版本 包装，鼓励开发人员迁移到AndroidX 1.0.0。
答案 3 :(得分：0)
使用堆栈跟踪运行构建：
./gradlew clean assembleDebug
如果错误的根本原因是这样的：
原因：com.android.tools.r8.errors.CompilationError：程序类型已存在：com.myapp.BuildConfig
这是由重复的程序包名称引起的。有关解决方法，请参见this question。
您需要确保您的AndroidManifest.xml具有正确且唯一的软件包名称。
答案 4 :(得分：-2)
如果您有Android Studio更新的任何更新，请删除.gradle 和清理项目 文件夹。我希望它有用。