Hi. I'm not able to instantiate the ViewModel. I'm...

# android

[deactivateduser]

Hi. I'm not able to instantiate the ViewModel. I'm getting the above error.

[dawidhyzy]

This is wrong place to ask. Your question is not specific to Kotlin. Read this first: https://developer.android.com/topic/libraries/architecture

[deactivateduser]

Thank you for your reply. I don't get this error in Java. Only in Kotlin. Could you please help?

[tseisel]

I really recommend that you read the Android Architecture Guide : your code has some serious issues, be it in Java or Kotlin.
Android ViewModel should never keep a reference to a View, Fragment or Activity.

Your crash is due to the fact that CardViewModel has a constructor parameter, so the framework is unable to instantiate it (only no-args constructors are allowed, unless you specify a factory). Check your implementation of ViewModelProvider.Factory for CardViewModel.

[deactivateduser]

@tseisel Thank you so much. I really missed the first part of ViewModel. I have read about it. Now I understand how it's actually works. Thanks again. ✌🏼