<p></p>
<p>I can confirm that adding the 'gem 'thor', '~> 0.20.3'' to the GemFile does fix the problem.<br>
My knowledge with ruby, bundle, yarn and the likes is limited but i do understand that this is a way older version than what OSM is supposed to be using. I also got a message that i went back to an older version when running this "fix"</p>

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