Topic on Extension talk:Cognitive Process Designer/Flow

Installed REL1_39 branch versions of PageForms and CognitiveProcessDesigner

$ docker-compose exec mediawiki  php maintenance/update.php

Fatal error: Uncaught ExtensionDependencyError: CognitiveProcessDesigner is not compatible with the current installed version of PageForms (5.4), it requires: ~5.6.

Extension:PageForms has declared

Compatibility policy Master maintains backward compatibility.

Please do not use REL1_39 of that extension, but master.