Trying to fetch a private package from gitlab into code sandbox using .tgz file

Question

Trying to fetch a private package from gitlab into code sandbox using .tgz file but getting the following error "TypeError Could not fetch dependencies, please try again in a couple seconds: Cannot read properties of undefined (reading 'content')" "dependencies": { "@ui-toolkit/xor-style": "file:./@ui-toolkit_xor-style-1.0.0.tgz", "classnames": "^2.3.1" } link for my codesandbox https://codesandbox.io/s/ui-toolkit-xr-checkbox-forked-2p0vme?file=/package.json