[SOLVED] Upgrade to 3.0.210 - Fatal Error: Interface 'FieldtypeHasPagefiles' not found

[Richard Jedlička]

Hello, I am upgrading from 3.0.184 to 3.0.210 and I always end up with this error.

Fatal Error: Interface 'FieldtypeHasPagefiles' not found

I've tried to clear site/assets/cache and the caches DB table, but nothing works.

I also checked the interface is there in the wire/core/interfaces.php

[Richard Jedlička]

using PHP 7.1

[Richard Jedlička]

Ok, found the issue. I am using composer and I has an installation of the processwire/processwire package of different version and the composer's autoloader loads the files from the vendor folder first. Fixed by either removing or upgrading the composer package.