What is a .sln.ide file?

Question

I have a Visual Studio 2012 solution /Foobar.sln. It contains one Class Library project and one Unit Test project. A few days ago I noticed a new file /Foobar.sln.ide/graph/Foobar.sln.ide.

Contents:

<Solution Format="0.0.0.3">
  <Version>0001-01-01T00:00:00Z</Version>
</Solution>

I'm not sure what I was doing when it was created, since I didn't notice it until a few days after it was created.

Today, several days later than I first asked this question, it appeared again in an Excel VSTO Add-in project. My guess now is that it's related to closing the solution, since it appeared in between the time I committed my changes and the time I opened a new project (not a VS project, just a file being edited). I haven't reproduced it.

What created this file? What does it do? Is it safe to delete? Should it be checked in to source control?

Did you upgrade to R# 8 lately? I noticed the file too. – Sebastian Graf Jul 25 '13 at 17:47 — Sebastian Graf, Jul 25 '13 at 17:47
I don't have Resharper installed. – Kendall Frey Jul 25 '13 at 17:51 — Kendall Frey, Jul 25 '13 at 17:51

score 4 · Answer 1 · answered Aug 07 '14 at 01:08

4

Are you using the "Roslyn" compiler. If so, this creates the .sln.ide folder in your solution folder. I believe it's to do with complier caching.

answered Aug 07 '14 at 01:08

John Rah

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No, I'm not using Roslyn. – Kendall Frey Aug 07 '14 at 13:14
Visual Studio 2014 ships with Roslyn, so a number of curious people may soon be reading this answer. – Colonel Panic Sep 29 '14 at 13:22

What is a .sln.ide file?

1 Answers1

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