Can't login to GitHub

[Adrian T]

Although I worked with SourceTree for months on this computer, I can't login to git hub anymore. When I fetch/pull/ etc., I get a Git login. I enter the correct password and user and the window keeps popping out.

I tried logging into Github site and it worked perfectly. I also tried copying the password so that I won't be wrong. I also tried logging in to the email instead of the username, none of it worked.I am using the latest version of SourceTree. I also tried deleting the user in the settings and creating a new one, although the old user used to work and just stopped working for no reason.

How do I resolve this issue

[Andrew Magill]

The problem is that SourceTree's embedded Git client comes with git-credential-manager v1.12, which no longer works with Github since they disabled TLS 1.1 on their site.  You need to get git-credential-manager v1.14.  Easiest way to do that is to install a current copy of the Git client separately, and then switch SourceTree over to use that ("system git") instead of its embedded client.  Alternatively, you can update git-credential-manager in your embedded client by replacing its files with the newest version from Microsoft.

(This text here because apparently this forum doesn't like it when you post the same message in multiple threads.)