UnsupportedError class Null safety
The operation was not allowed by the object.
This Error is thrown when an instance cannot implement one of the methods in its signature.
- UnsupportedError(String message)
- hashCode → int
The hash code for this object. [...]
- message → String?
- runtimeType → Type
A representation of the runtime type of the object.
- stackTrace → StackTrace?
The stack trace at the point where this error was first thrown. [...]
Invocation invocation) → dynamic
Invoked when a non-existent method or property is accessed. [...]
) → String
A string representation of this object. [...]
Object other) → bool
The equality operator. [...]