Error message:

Solution:

From the error message, the prompt is that the permission is insufficient to operate. All the files found on the Internet are to delete npmrc files, but there is no effect. Through exploration, we can solve it in two ways:
1. Run vscode as an administrator, and then run NPM link on the vscode terminal
2. Run CMD (command prompt) as an administrator, Go into your own module and run NPM link

it’s done