A modern programming language that makes developers happier.

kotlinlang

```Log.d(TAG, descriptionResult.errorMessage.toString())
 intervention.value = intervention.value?.copy(
  descriptionError = descriptionResult.errorMessage,
  timeError = timeResult.errorMessage
)
Log.d(TAG, "intervention: ${intervention.value?.descriptionError}")
return```

Hello Nikolas,
`intervention.value` might be null ?
You can add a `?:` operator after `.copy()` handle the case when intervantion.value is null like :
```intervention.value = intervention.value?.copy(
  descriptionError = descriptionResult.errorMessage,
  timeError = timeResult.errorMessage
) ?: TODO()```


null?.copy() is null , you must init intervention or use  elvis
```( intervention.value ?: Intervation() ).copy```

sorry, my fault, I forgot to specify: “intervention.value” is certainly not null in that part of code, i’m displaying its other attributes in the View

I found the problem: I overwrote the equals/hashcode methods of the Intervention class, but I forgot to update them after I added the “error” fields

I suppose that caused problems with the “copy” method