Help:Installation/Troubleshooting/Call to undefined function enableSemantics


 * Fatal error&#58; Call to undefined function enableSemantics in ... LocalSettings.php
 * Something went wrong with the registration or installation, please re-read the instillation instructions. CiteRef::mail:user:smw:tp5069799


 * Fatal error&#58; Call to undefined function enableSemantics
 * This kind of message appears if the Validator extension is still explicitly invoked. To resolve this the following line has to be removed:


 * Fatal&#58; Call to undefined function enableSemantics …
 * This kind of message appears for MW ≤ 1.21.x if the Extension Installer extension is included after the call to enableSemantics (see above). Make sure that the call to include Extension Installer comes first.