Hello,
 on Wikibase for Mediawiki 1.37 on
create new property I get the following error

 /mediawiki/index.php/Special:NewProperty InvalidArgumentException: The given PageIdentity does not represent a proper page

 

I've installed it following this procedure:

-- git clone -b REL1_37 https://github.com/wikimedia/mediawiki-extensions-Wikibase.git Wikibase (in extensions folder)

-- cd Wikibase

-- git submodule update --init --recursive

-- added "extra": {
         "merge-plugin": {
         "include": [
        "extensions/Wikibase/composer.json"
      ]
    }

to composer.local.json

-- rm composer.lock (in the mediawiki folder)
-- composer install --no-dev (in the mediawiki folder)

-- the following in LocalSettings.php

wfLoadExtension( 'WikibaseRepository', "$IP/extensions/Wikibase/extension-repo.json" );
require_once "$IP/extensions/Wikibase/repo/ExampleSettings.php";
$wgWBRepoSettings['siteLinkGroups'] = [ ];

 

Am I missing something ?

thank you

(Thomas)