Why does Sourcetree keep asking for a password to https://(null) on Mac?

Question

I've been trying to clone a website from pantheon.io, for which I have full permissions and have cloned it to other laptop and all.

However, when trying to Clone from URL and inputting the link, it prompt me to enter a username and password for https://(null. I have tried every password I can think of but it just won't work, and always keeps popping up with the same window:

I'm using SourceTree 4.0.2.

How can I solve this and effectively clone my website? I would like to try and avoid using git bash.

Soumyadeep Mandal - SaM · Answer

You can even clean install by following this documentation

https://confluence.atlassian.com/get-started-with-sourcetree/install-and-set-up-sourcetree-847359043.html

Soumyadeep Mandal - SaM · Answer

Hi @André Diogo ,

Welcome to the Atlassian Community!

Please follow the below steps

Go to Preferences -> Git and clicking "Use System Git".

After that Sourcetree remembers the password.