My OSX terminal began hanging when I opened a new window and looking at the top of the window, it was taking a long time to exit the ng completion script. Took about 5 min for the script to exit after I was patient enough. Several things I tried (not knowing how to solve the issue): Return Ctrl+ j - line feed Ctrl + z - suspend Ctrl + c - interrupt Ctrl + q - quit Ctrl + s - restart output close, force quite, terminate, reopen terminal ref: https://www.oreilly.com/library/view/learning-the-unix/1565923901/ch01s04.html#:~:text=If%20you%20can%20type%20commands,%2DJ%20reset%20CTRL%2DJ. None of the above worked for me. What did work: Uninstall global angular/cli package with npm uninstall -g @angular/cli Verify uninstall with npm list -g --depth 0 and verify @angular/cli is not in list. Reinstall global angular/cli with npm install -g @angular/cli Hope this helps someone in the future. Continue reading...