Kapt、Kotlin、Dagger2 注解处理期间的错误

Question

在使用Kotlin开发项目时，添加了com.google.dagger:dagger-android-support依赖后，出现了Gradle错误。

以下是我的build.gradle部分内容：build.gradle

    apply plugin: 'com.android.application'
    apply plugin: 'kotlin-android'
    apply plugin: 'realm-android'
    apply plugin: 'me.tatarka.retrolambda'
    apply plugin: 'kotlin-kapt'

    android {
      ...
       kapt {
         generateStubs = true
       }
    }
dependencies {
    compile fileTree(dir: 'libs', include: ['*.jar'])

    androidTestCompile('com.android.support.test.espresso:espresso-core:2.2.2', {
        exclude group: 'com.android.support', module: 'support-annotations'
    })

    ...
       kapt "com.google.dagger:dagger-compiler:${daggerVersion}"
       kapt "com.google.dagger:dagger-android-processor:${daggerVersion}"
       compile "com.google.dagger:dagger:${daggerVersion}"
       compile "com.google.dagger:dagger-android-support:${daggerVersion}"

       ...
    }

以下是我收到的Gradle错误：

ApplicationComponent.java:21: error: [dagger.android.AndroidInjector.inject(T)] java.util.Map<java.lang.Class<? extends android.support.v4.app.Fragment>,javax.inject.Provider<dagger.android.AndroidInjector.Factory<? extends android.support.v4.app.Fragment>>> cannot be provided without an @Provides-annotated method.
e: 
public interface ApplicationComponent {
    e:        ^
    e: java.lang.IllegalStateException: failed to analyze: org.jetbrains.kotlin.kapt3.diagnostic.KaptError: Error while annotation processing
        at org.jetbrains.kotlin.analyzer.AnalysisResult.throwIfError(AnalysisResult.kt:57)
        at org.jetbrains.kotlin.cli.jvm.compiler.KotlinToJVMBytecodeCompiler.compileModules(KotlinToJVMBytecodeCompiler.kt:144)
        at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:167)
        at org.jetbrains.kotlin.cli.jvm.K2JVMCompiler.doExecute(K2JVMCompiler.kt:55)
        at org.jetbrains.kotlin.cli.common.CLICompiler.exec(CLICompiler.java:182)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl.execCompiler(CompileServiceImpl.kt:397)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl.access$execCompiler(CompileServiceImpl.kt:99)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$1$2.invoke(CompileServiceImpl.kt:365)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl$compile$1$2.invoke(CompileServiceImpl.kt:99)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$2$$special$$inlined$withValidClientOrSessionProxy$lambda$1.invoke(CompileServiceImpl.kt:798)
        at org.jetbrains.kotlin.daemon.CompileServiceImpl$doCompile$2$$special$$inlined$withValidClientOrSessionProxy$lambda$1.invoke(CompileServiceImpl.kt:99)
        at org.jetbrains.kotlin.daemon.common.DummyProfiler.withMeasure(PerfUtils.kt:137)

应用程序组件

@Singleton
@Component(modules = {AndroidInjectionModule.class, ApplicationModule.class, RetrofitModule.class, ActivityBuilderModule.class})
public interface ApplicationComponent {

    @Component.Builder
    interface Builder {

        @BindsInstance
        Builder application(Application application);

        ApplicationComponent build();
    }

    void inject(TaskApplication application);
}

有人遇到过同样的问题吗？

- rafaelasguerra

---

你进行了干净的构建吗？Kotlin与注解处理器仍然有一些小问题。 - David Medenjak

@DavidMedenjak 没有解决。 - rafaelasguerra

这有帮助吗？https://dev59.com/WFgR5IYBdhLWcg3whtqk#41220138 - Lovis

Answer 1

在使用 android.support.v4.app.Fragment 时，通过使用 AndroidSupportInjectionModule 解决了问题。

@Singleton
@Component(modules = {AndroidSupportInjectionModule.class, ApplicationModule.class, RetrofitModule.class, ActivityBuilderModule.class})
public interface ApplicationComponent {

    @Component.Builder
    interface Builder {

        @BindsInstance
        Builder application(Application application);

        ApplicationComponent build();
    }

    void inject(TaskApplication application);
}

- rafaelasguerra

Answer 2

你尝试在应用级别的gradle文件中添加kapt了吗？

kapt {
    generateStubs = true
}

- Levi Moreira

---

这可能是解决方案，请查看我的答案： https://dev59.com/WFgR5IYBdhLWcg3whtqk#41220138 使用kapt3（apply plugin: 'kotlin-kapt'）不允许使用generateStubs = true。 - Lovis