Welcome to the community, @Sikander_Khan! :grinning_face_with_big_eyes: What OS are you running? If you’re on macOS, you might try running the command again with the sudo prefix. It’ll prompt you to enter your password (and you won’t see it as you type in the terminal), but it essentially uses your authorization as the system admin to get past various permissions issues while the process runs.
If that doesn’t work, holler and we’ll see what else we can try.