description

# StateError class Null safety

The operation was not allowed by the current state of the object.

This is a generic error used for a variety of different erroneous actions. The message should be descriptive.

Inheritance
  - Object
  - Error
  - StateError

## Constructors

StateError(String message)

## Properties

hashCode → int
  The hash code for this object. [...]
  read-only, inherited
message → String
  final
runtimeType → Type
  A representation of the runtime type of the object.
  read-only, inherited
stackTrace → StackTrace?
  read-only, inherited

## Methods

noSuchMethod(Invocation invocation) → dynamic
  Invoked when a non-existent method or property is accessed. [...]
  inherited
toString() → String
  Returns a string representation of this object.
  override

## Operators

operator ==(Object other) → bool
  The equality operator. [...]
  inherited