"The directory name is invalid" in log - which dir?

[GreenMoose]

My log stated:
<...>
2008-01-30 11:07:43 Fast refresh
2008-01-30 11:08:30 The directory name is invalid
2008-01-30 11:08:30 The directory name is invalid
2008-01-30 11:08:31 The directory name is invalid
2008-01-30 11:08:38 The directory name is invalid
2008-01-30 11:08:39 The directory name is invalid
<...>

Maybe it should also state which directory it is that's considered invalid?

[Zoë]

Are you seeing this with a drive or an SFTP connection?

[GreenMoose]

With a drive...

[GreenMoose]

Found the cause of this now:

When I use notepad++.exe %f in Open With, and tries to exec it in a diff view, nothing happens (I thought it was in PATH). When I then go back to the folder session I see
2008-02-01 07:48:25 The system cannot find the file specified
in log. When I use working folder with quotes e.g. "C:\program files(x86)\notepad++\", I get below in log
2008-02-01 07:44:49 The directory name is invalid.

Behavior is fair enough but it's a bit confusing that these errors won't show until I actually close the diff tab and goes back to the folder compare session and then starts to scratch my head.

[Zoë]

The next release will have this fixed. The error message will specifically say it's an Open With failure, and it will show the error in a dialog if it's run from a file viewer.