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fatal: unable to access 'https://github.com/project': error:1407742E:SSL routines:SSL23_GET_SERVER_HELLO:tlsv1 alert protocol version

Dead End
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1 Answers1

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That is because GitHub has deprecated TLS v1 since February 22nd.

See of your Git is part of the Known incompatible clients.
At the very least, upgrade Git or any other component making Git operations (JGit, EGit, ...)

In your case, install the latest Git, and make sure

  • SourceTree is up-to-date
  • SourceTree is using the System Git, not the embedded one.
    Or at least, as the OP comments, update the embedded one.

As a workaround, pending updates, you can still switch to an SSH URL if your remote server allows it.

VonC
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  • See also https://community.atlassian.com/t5/Sourcetree-questions/How-do-I-setup-Sourcetree-to-access-Github-now-that-they/qaq-p/735377. I prefer installing my own Git rather than relying on the embedded one in SourceTree. – VonC Feb 26 '18 at 08:19
  • it worked vice-versa for me.... update git version 1.9.5 to 2.15.1 using steps: In sourceTree go to Tools>options>GIT>Use Embedded GIT – Dead End Feb 26 '18 at 11:47
  • @DeadEnd 2.15.1 is good enough then. I have updated the answer accordingly. – VonC Feb 26 '18 at 11:57