TypeError: Cannot assign to read only property '<propertyName>' of object '#<Object>'

[zjsng]

I'm at a loss, I've been trying to debug this for hours and can't seem to fix it for some reason.

I am using cloneDeep from Lodash to reset, and at least now it only occurs on two fields. As well as this following error:

TypeError: Cannot assign to read only property '0' of object '[object Array]'.

Any ideas how I can even attempt to debug this?

[Moshyfawn]

#3715

[tmnrp]

Did you find the root cause/ fix ?
i have the same error when performing useFieldArray operation on nessed react hook form zod schema

[tankotun]

If you use useFieldArray.update to update an object in the array, it may eventually cause this error. You should use setValue from useFormContext to update.