Topic on Project:Support desk

When updating MW from 1.37 to 1.38 or 1.39 it gives this error "This version of the HeaderFooter extension requires MediaWiki 1.25+". Anyone had the same issue before? How can this be solved?

That sounds unlikely; the extension 1.39 branch requires MediaWiki 1.35.0 per line 9 . Are you sure you are running an extension version compatible with the MediaWiki version?

I have both tried with composer, below my composer.local.json and manually downloading the HeaderFooter extensions to the extensions folders.

{

  "require": {

         "mediawiki/maps": "^7",

         "mediawiki/semantic-media-wiki": "~4.0",

         "mediawiki/semantic-cite": "~3.0",

         "mediawiki/semantic-compound-queries": "~2.2",

         "mediawiki/header-footer": "~3.0",

         "mediawiki/chameleon-skin": "~3.0",

         "mediawiki/page-forms": "~5.0",

         "samwilson/diagrams": "^0.9.2"

       }

}

Till 1.37 it is fine. After that all i get is this

What creates that output, after which exact steps performed? How did you "manually download" the extension and which exact branch? Please don't paraphrase but provide exact commands to avoid ambiguity.