```Log.d(TAG, descriptionResult.errorMessage.toString()) intervention.value = intervention.value?.c...

# android

[Nikolas Guillen Leon]

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

[Louis Gautier]

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()

[d000l]

null?.copy() is null , you must init intervention or use elvis

( intervention.value ?: Intervation() ).copy

[Nikolas Guillen Leon]

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

[Nikolas Guillen Leon]

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

[Nikolas Guillen Leon]

I suppose that caused problems with the “copy” method