SourceTree crash - "System.IO.IOException: The file exists."

I've been using SourceTree for half a year now - it's great. I'm running Windows 8.1, had version and had no problems with it until now.

On 21st Feb as I was minding my own gits, Source Tree failed to open. No window would pop up or anything - the application would start to open, and then close.

Restarted my machine and tried again, but it still persisted. I ran the repair tool and eventually removed it, then reinstalled it, but it still wouldn't open. I removed it again and also removed the AppData folder. SourceTree opened this time and I was able to communicate with Bitbucket and open working copies of my git repositories.

However, when I go to open up a repository (tree view), the application crashes again with the same error. This is very puzzling.


Here's what happens currently (version

sourcetree bug.gif


The log file outputs the following each time;

2015-02-24T19:12:14: Fatal error: 
System.IO.IOException: The file exists.

2015-02-24T19:12:14: Stack trace:
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.Path.InternalGetTempFileName(Boolean checkHost)
at System.Windows.Input.Cursor.LoadFromStream(Stream cursorStream)
at System.Windows.Controls.GridViewColumnHeader.GetCursor(Int32 cursorID)
at System.Windows.Controls.GridViewColumnHeader.get_SplitCursor()
at System.Windows.Controls.GridViewColumnHeader.HookupGripperEvents()

... (Full stack trace)


I'm horrendous with git on command line, and don't want to have to move to another GUI. Any ideas? Thanks in advance.

1 answer

A few things to try:

1) Stop using Tree View. It's known to have some issues.

2) On the nothing to commit screen, instead of closing the repo, go to the top dropdown, and select something other than "PENDING FILES". Currently there is nothing to display because you don't have any uncommitted changes.

3) Search for bugs relating to SourceTree for Windows crashes on If none seem to apply, submit a new bug.

Thanks for the reply. Looks like someone posted this bug 8 hours ago on Jira - I guess I'll be watching it for a while.

Need to clean out your %temp% it has over 65535 files, and developers should avoid use of System.IO.Path.InternalGetTempFileName.

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