UnsupportedOperationException class Null safety
Indicates that a command that should have executed properly cannot be supported for some reason.
- hashCode → int
The hash code for this object. [...]
- message → String
A message describing the error.
- runtimeType → Type
A representation of the runtime type of the object.
- statusCode → int
Either the status value returned in the JSON response (preferred) or the
HTTP status code.