Unknown Class – yii\baselUnknownClassException Unable to find ‘app|components|GlobalComponent’ in file: /Applications/MAMP/htdocs/harmony-cdn/components/GlobalComponent.php. Namespace missing? I have class GLobalComponent in folder components, and I wrote down the directory appcomponentsGlobalComponents in the config file. But it doesn’t see this class and make this exception I checked for misspellings, but everything was okay class exception yii yii2 components 1