Error 'ssh-agent' failed with code -1: System.NullReferenceException

[Vittorio Sozzi]

Hi, I have the latest SourceTree for Windows (version 3.4.8) and using Git standalone version 2.35.1.windows.2. I am using Windows OpenSSH for authentication.

SourceTree gives the following error:

This happens:

• - every time SourceTree is opened
• - every time I close the Tools -> Options window
• - every time Tools -> Launch SSH agent... is clicked

Any idea on how to solve this?

PS: Here is my git configuration on SourceTree Options: 

Update (2022-06-01): this still happens with SourceTree version 3.4.9

Update (2022-10-19): this still happens with SourceTree version 3.4.10. This is frustrating! Time to change git GUI...

Update (2023-09-28): this still happens with SourceTree version 3.4.15.

[Gonzalo Piffaretti]

I have the same issue. Everything works as expected when using git in bash or powershell. Sourcetree is just not playing nicely with OpenSSH.
Also evaluating a change.

[Vittorio Sozzi]

I opened an issue in SourceTree for Windows Jira https://jira.atlassian.com/browse/SRCTREEWIN-14297

If you feel like it, you can vote/comment it.

I don't have much faith that it will be considered or even corrected but at least I reported it.

[Vittorio Sozzi]

this still happens with SourceTree version 3.4.10. This is frustrating! Time to change git GUI...