Hello,
I have checkout with git --branch REL1_31.
My composer install --no-dev tells me, that I have problems, because there is a dev-REL1_31.
remove mediawiki/core dev-REL1_31|remove mediawiki/semantic-media-wiki 3.0.1
I don't understand where is the correct HowTo to install MediaWiki with SemanticWiki. Everythink I have problems... I am angry