Failed to execute git checkout '60c696c9370a1e5136816ca557c17f82a6fa83f1' -- && git reset --hard '60c696c9370a1e5136816ca557c17f82a6fa83f1' -- fatal: reference is not a tree: 60c696c9370a1e5136816ca557c17f82a6fa83f1 It looks like the commit hash is not available in the repository, maybe the tag was recreated? Run "composer update herrera-io/json" to resolve this.