Error: cannot find symbol variable DaggerAppComponent

Question

While trying to integrate latest Dagger 2 version, I am facing problem of Dagger auto generation. Dagger is not auto generating DaggerAppComponent in spite of several Rebuilds a

Answer 1

Adding the below dependency fixed the issue for me for Java project

annotationProcessor 'com.google.dagger:dagger-compiler:2.27'

and for Kotlin project (after adding kotlin-kapt):

kapt "com.google.dagger:dagger-compiler:2.27"

Answer 2

I had the same problem...What solved my problem was actually adding The view model to the ViewmodelModulle then add the annotation @Inject to the constructor of my view model. It could be a different issue for you but in my situation, this really helped. My code compiled without any problem

@Inject <----- This was Missing in the constructor.

public MessageViewModel(Application application) {
    super(application);
    mApp = application;

Answer 3

You need these two lines

implementation 'com.google.dagger:dagger:2.16'
kapt 'com.google.dagger:dagger-compiler:2.16'

Use kapt instead of annotationProcessor when using kotlin. Generated class like Dagger+AppComponentClass, eg:DaggerAppComponent

Answer 4

1.Clean the project 2.Rebuild 3.File-->Invalidate and Restart

Answer 5

Chenge code to this,

 private void initAppComponent()
{
/*    DaggerAppComponent.builder()
                    .appModule(new AppModule(this))
                    .build();*/
        appComponent = DaggerAppComponent.builder()
                .appModule(new AppModule(this))
                .build();
        appComponent .inject(this)
    }

Other things are

@Singleton
@Component(modules = AppModule.class)
public interface AppComponent
{
    void inject(BaseApplication application);
}

Why you need to inject same class where a component is built you can easily get context and application on Application class. Dagger can help you to find a dependent class.

Answer 6

Try, go to File and

Invalidate and Restart