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kotlinlang

greetings, guys. 
Have a question, and can't solve it by myself. 

I have a project written in Java, it uses VIPER pattern from iOS, but basically it is the same MVP. 
I would like to implement one part in Kotlin, but that part should be injected in java code. 
Here's what i write: 

```
@file:JvmName("MessagingHelper")
@Singleton
class MessagingHelper @Inject constructor(val sdk: SoulSDK) {
    ...
}
```

I have an error: `Error:(25, 8) error: dagger.internal.codegen.ComponentProcessor was unable to process this class because not all of its dependencies could be resolved. Check for compilation errors or a circular dependency with generated code.`