Your cache folder contains root-owned files, due to a bug in npm err! previous versions of npm which has since been addressed.

The issue with root-owned files in the cache folder is a known bug in previous versions of npm. This bug has been addressed in newer versions of npm. However, if you are still experiencing this problem, here are a few possible solutions:

1. Change ownership of the cache folder:

   You can change the ownership of the cache folder to your current user to avoid root-owned files. Use the following command to change ownership (replace /path/to/cache with the actual path to your cache folder):

           
             $ sudo chown -R $(whoami) /path/to/cache
           
         

2. Clear the cache completely:

   If changing ownership doesn’t work or you want to start fresh, you can clear the cache completely. Use the following command to remove the entire cache folder (replace /path/to/cache with the actual path to your cache folder):

           
             $ sudo rm -rf /path/to/cache
           
         

3. Upgrade npm to the latest version:

   It is always recommended to use the latest stable version of npm. Upgrade npm to the latest version using the following command:

           
             $ npm install -g npm@latest
           
         

By following these steps, you should be able to resolve the issue with root-owned files in the cache folder.