UnknownMethodException class Null safety
The requested command matched a known URL but did not match an method for that URL.
- 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.