I don't understand, which version are compatible.
I use Composer, composer.local.json:
"require": {"mediawiki/semantic-media-wiki": "~2.5", ....
I have checked out MediaWiki REL1_31 and composer install --no-dev --> Result: remove mediawiki/core dev-REL1_31|remove mediawiki/semantic-media-wiki 2.5.8
I have checked out MediaWiki REL1_32 and composer install --no-dev --> Result: remove mediawiki/core dev-REL1_31|remove mediawiki/semantic-media-wiki 2.5.8
I have the same problem with Semantic Version 3:
remove mediawiki/core dev-REL1_31|remove mediawiki/semantic-media-wiki 3.0.1
Have a look at the compatibility document, e.g. SMW 3.0.1 is compatible with MW 1.31. See here for how to install, i.e. use "composer.local.json" instead.
My problem was in the file composer.local.json the line:
"extra": {
"merge-plugin": {
"include": [
"extensions/*/composer.json"
composer are not understand this recursively... I don't know why.
Good to know what the issue was. Admittedly I only explicitly call extension's "composer.json" files here, e.g. by adding "extensions/SyntaxHighlight_GeSHi/composer.json". The issue is probably that not every extension provides such a file and Composer errors out when not finding one.
