[TYPO3-mvc] Re: Class not autoloaded

[Philipp Wrann]

If you are using a composer based installation you have to stick at it and dont mix things up. You need a composer autoload configuration for that namespace, simply put it in your base composer.json within autoload.psr-4.

autoload : {
psr-4 : {
'My\\OwnExt\\ ' => 'web/typo3conf/ext/ownext/Classes/'
}
}

Typo3 flushes the autoload cache when extensions are installed or uninstalled.