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Android找不到symbol DaggerAppComponent错误,但没有提示导致该错误的原因

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  • Merhawi Fissehaye  · 技术社区  · 6 年前

    我得到了这个错误,我不知道是什么导致了这个问题。

    Executing tasks: [:app:assembleDebug]
    
    
    > Configure project :app
    registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
    registerResGeneratingTask is deprecated, use registerGeneratedResFolders(FileCollection)
    
    > Task :app:checkDebugClasspath UP-TO-DATE
    > Task :app:preBuild UP-TO-DATE
    > Task :app:preDebugBuild UP-TO-DATE
    > Task :app:compileDebugAidl NO-SOURCE
    > Task :app:compileDebugRenderscript UP-TO-DATE
    > Task :app:checkDebugManifest UP-TO-DATE
    > Task :app:generateDebugBuildConfig UP-TO-DATE
    > Task :app:generateSafeArgsDebug UP-TO-DATE
    > Task :app:prepareLintJar UP-TO-DATE
    > Task :app:mainApkListPersistenceDebug UP-TO-DATE
    > Task :app:mergeDebugShaders UP-TO-DATE
    > Task :app:compileDebugShaders UP-TO-DATE
    > Task :app:generateDebugAssets UP-TO-DATE
    > Task :app:mergeDebugAssets UP-TO-DATE
    
    > Task :app:processDebugGoogleServices
    Parsing json file: C:\Users\123\Documents\code\android\deamat\app\google-services.json
    
    > Task :app:createDebugCompatibleScreenManifests UP-TO-DATE
    > Task :app:processDebugManifest UP-TO-DATE
    > Task :app:fabricGenerateResourcesDebug
    > Task :app:generateDebugResValues UP-TO-DATE
    > Task :app:generateDebugResources UP-TO-DATE
    > Task :app:mergeDebugResources
    > Task :app:splitsDiscoveryTaskDebug UP-TO-DATE
    > Task :app:processDebugResources
    > Task :app:generateDebugSources
    > Task :app:dataBindingExportBuildInfoDebug UP-TO-DATE
    > Task :app:dataBindingExportFeaturePackageIdsDebug UP-TO-DATE
    > Task :app:dataBindingMergeDependencyArtifactsDebug UP-TO-DATE
    > Task :app:transformDataBindingBaseClassLogWithDataBindingMergeGenClassesForDebug UP-TO-DATE
    > Task :app:dataBindingGenBaseClassesDebug UP-TO-DATE
    > Task :app:javaPreCompileDebug UP-TO-DATE
    
    > Task :app:compileDebugJavaWithJavac
    Note: [1] Wrote GeneratedAppGlideModule with: []
    warning: View field quantity collides with a variable or import
      file://C:\Users\123\Documents\code\android\deamat\app\src\main\res\layout\product_quantity.xml Line:29
    warning: View field totalPrice collides with a variable or import
      file://C:\Users\123\Documents\code\android\deamat\app\src\main\res\layout\screen_cart.xml Line:50
    warning: totalPrice is a boxed field but needs to be un-boxed to execute app:currency. This may cause NPE so Data Binding will safely unbox it. You can change the expression and explicitly wrap totalPrice with safeUnbox() to prevent the warning
      file://C:\Users\123\Documents\code\android\deamat\app\src\main\res\layout\screen_cart.xml Line:50
    warning: View field category collides with a variable or import
      file://C:\Users\123\Documents\code\android\deamat\app\src\main\res\layout\single_category.xml Line:11
    warning: dark is a boxed field but needs to be un-boxed to execute dark ? @android:drawable/selectable_item_gray_background : @android:drawable/selectable_item_light_gray_background. This may cause NPE so Data Binding will safely unbox it. You can change the expression and explicitly wrap dark with safeUnbox() to prevent the warning
    C:\Users\123\Documents\code\android\deamat\app\src\main\java\com\deamat\deamat\DeamatApplication.java:26: error: cannot find symbol
            appComponent = DaggerAppComponent.builder()
                           ^
      symbol:   variable DaggerAppComponent
      location: class DeamatApplication
    Note: Some input files use or override a deprecated API.
    Note: Recompile with -Xlint:deprecation for details.
    Note: Some input files use unchecked or unsafe operations.
    Note: Recompile with -Xlint:unchecked for details.
    1 error
    5 warnings
    
    > Task :app:compileDebugJavaWithJavac FAILED
    
    FAILURE: Build failed with an exception.
    
    * What went wrong:
    Execution failed for task ':app:compileDebugJavaWithJavac'.
    > Compilation failed; see the compiler error output for details.
    
    * Try:
    Run with --info or --debug option to get more log output. Run with --scan to get full insights.
    
    * Exception is:
    org.gradle.api.tasks.TaskExecutionException: Execution failed for task ':app:compileDebugJavaWithJavac'.
        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$1.run(DefaultTaskGraphExecuter.java:256)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:249)
        at org.gradle.execution.taskgraph.DefaultTaskGraphExecuter$EventFiringTaskWorker.execute(DefaultTaskGraphExecuter.java:238)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:104)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker$1.execute(DefaultTaskPlanExecutor.java:98)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.execute(DefaultTaskExecutionPlan.java:663)
        at org.gradle.execution.taskgraph.DefaultTaskExecutionPlan.executeWithTask(DefaultTaskExecutionPlan.java:596)
        at org.gradle.execution.taskgraph.DefaultTaskPlanExecutor$TaskExecutorWorker.run(DefaultTaskPlanExecutor.java:98)
        at org.gradle.internal.concurrent.ExecutorPolicy$CatchAndRecordFailures.onExecute(ExecutorPolicy.java:63)
        at org.gradle.internal.concurrent.ManagedExecutorImpl$1.run(ManagedExecutorImpl.java:46)
        at org.gradle.internal.concurrent.ThreadFactoryImpl$ManagedThreadRunnable.run(ThreadFactoryImpl.java:55)
    Caused by: org.gradle.api.internal.tasks.compile.CompilationFailedException: Compilation failed; see the compiler error output for details.
        at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:52)
        at org.gradle.api.internal.tasks.compile.JdkJavaCompiler.execute(JdkJavaCompiler.java:36)
        at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.delegateAndHandleErrors(NormalizingJavaCompiler.java:98)
        at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:51)
        at org.gradle.api.internal.tasks.compile.NormalizingJavaCompiler.execute(NormalizingJavaCompiler.java:37)
        at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:35)
        at org.gradle.api.internal.tasks.compile.CleaningJavaCompilerSupport.execute(CleaningJavaCompilerSupport.java:25)
        at org.gradle.api.tasks.compile.JavaCompile.performCompilation(JavaCompile.java:156)
        at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:141)
        at org.gradle.api.tasks.compile.JavaCompile.compile(JavaCompile.java:114)
        at com.android.build.gradle.tasks.factory.AndroidJavaCompile.compile(AndroidJavaCompile.java:92)
        at org.gradle.internal.reflect.JavaMethod.invoke(JavaMethod.java:73)
        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$1.run(ExecuteActionsTaskExecuter.java:124)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:317)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor$RunnableBuildOperationWorker.execute(DefaultBuildOperationExecutor.java:309)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.execute(DefaultBuildOperationExecutor.java:185)
        at org.gradle.internal.operations.DefaultBuildOperationExecutor.run(DefaultBuildOperationExecutor.java:97)
        at org.gradle.internal.operations.DelegatingBuildOperationExecutor.run(DelegatingBuildOperationExecutor.java:31)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeAction(ExecuteActionsTaskExecuter.java:113)
        at org.gradle.api.internal.tasks.execution.ExecuteActionsTaskExecuter.executeActions(ExecuteActionsTaskExecuter.java:95)
        ... 29 more
    
    
    * Get more help at https://help.gradle.org
    
    BUILD FAILED in 28s
    26 actionable tasks: 5 executed, 21 up-to-date
    

    我试着用

    gradle.projectsEvaluated {
        tasks.withType(JavaCompile) {
            options.compilerArgs << "-Xmaxerrs" << "1000"
        }
    }
    

    我也试着加上 --stacktrace 到命令行选项以获取更多上下文。我也试着看看我的匕首模块有没有问题。 如何使android studio帮助我调试确切的原因?

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