Implemented by

craft\fields\MissingField, craft\volumes\MissingVolume, craft\widgets\MissingWidget

Available since version

3.0

Source Code

https://github.com/craftcms/cms/blob/master/src/base/MissingComponentInterface.php

MissingComponentInterface defines the common interface for classes that represent a missing component class.

A class implementing this interface should also implement craft\base\ComponentInterface and yii\base\Arrayable, and use craft\base\MissingComponentTrait.