I’m trying to log in from the command line using this command:
$ npm login --registry=https://npm.pkg.github.com/
But my username on GitHub has an uppercase first letter, which results in the following error:
$ npm login --registry=https://npm.pkg.github.com/
Username: <Username>
npm WARN Name must be lowercase
Anyone know how I can get around this? Do I have to change my GitHub username for this to work?
>Solution :
npm started to enforce lower case usernames at some points, leaving the accounts previously created in this awkward situation.
To solve the issue, you might want to email support@npmjs.com, which will link the lowercase variant of your username to your account.
source: this github issue.