Unable to resolve dependency tree error when installing npm packages

This is not related to an HTTP proxy. You have dependency conflict (incorrect and potentially broken dependency) as it says, so try to run the command with –force, or –legacy-peer-deps. If it doesn’t take effect, the temporary solution is using prior versions of the Node.js (downgrading the Node.js version) as it causes this kind of errors to happen sometimes. Update based on the OP’s update: As … Read more