This affects eZ Publish legacy when not in context of eZ Publish 5.

When the eZ components are not downloaded into lib/ezc and not installed through pear, but through the composer.json, generating autoloads fails with the message

Warning: require(Base/src/base.php): failed to open stream: No such file or directory in .../ezpublish-legacy/bin/php/ezpgenerateautoloads.php on line 45