I would ensure you are running Git 2.20.1 or higher, either but updating Sourcetree to v2.0.17 and then updating the embedded Git in the Tools/Options/Git tab or by installing Git for Windows 2.20.1 directly and configuring Sourcetree to use it as a System Git in Tools/Options/Git.
There were some problems with the Git Credential Manager GCM that is bundled with Git for Windows and that error sounds like one of them
A vulnerability has been published today in regards to Sourcetree for Windows. The goal of this article is to give you a summary of information we have gathered from Atlassian Community as a st...
Connect with like-minded Atlassian users at free events near you!Find an event
Connect with like-minded Atlassian users at free events near you!
Unfortunately there are no Community Events near you at the moment.Host an event