Since I am working with hybrid solutions (with F# and C# projects in it) I had to deactivate ReSharper. ReSharper had a problem with analyzing my F# sources (see JIRA bug entry #79203). The result was that every single F# defined type and function was marked as an error. I nearly got crazy. On one hand I got used to all the nice ReSharper refactorings (and the NUnit runner) and on the other I got all these false positive errors.
Thank you guys at JetBrains. ðŸ™‚Tags: F#, nunit, resharper