dart:core

StateError class

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

Should be used when this particular object is currently in a state which doesn't support the requested operation, but other similar objects might, or the object might change its state to one which supports the operation. Example: Asking for list.first on a currently empty list. If the operation is never supported, consider using UnsupportedError instead.

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

read-only, inherited

The hash code for this object.

message → String

final

runtimeType → Type

read-only, inherited

A representation of the runtime type of the object.

stackTrace → StackTrace?

read-only, inherited

The stack trace at the point where this error was first thrown.

Methods

noSuchMethod(Invocation invocation) → dynamic

inherited

Invoked when a non-existent method or property is accessed.

toString() → String

override

A string representation of this object.

Operators

operator ==(Object other) → bool

inherited

The equality operator.