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ERROR [2013-08-21 14:32:40Z]: Error while looking up framework types.
System.IO.InvalidDataException: Assembly lookup was 27908 but only 808 are known.
at ICSharpCode.NRefactory.Completion.FrameworkLookup+<GetLookup>c__Iterator20.MoveNext () [0x00174] in /Users/michael/Mono/monodevelop/main/external/nrefactory/ICSharpCode.NRefactory/Completion/FrameworkLookup.cs:273
at ICSharpCode.NRefactory.Completion.FrameworkLookup+<GetLookups>c__Iterator1F.MoveNext () [0x00116] in /Users/michael/Mono/monodevelop/main/external/nrefactory/ICSharpCode.NRefactory/Completion/FrameworkLookup.cs:107
at MonoDevelop.Refactoring.ResolveCommandHandler+<GetPossibleNamespaces>c__Iterator4.MoveNext () [0x00ec7] in /Users/michael/Mono/monodevelop/main/src/addins/MonoDevelop.Refactoring/MonoDevelop.Refactoring/ResolveCommandHandler.cs:442
We had an error in the assembly loader - I fixed that.
In contrast to the type system serialization the framework lookup resides on disk therefore errors like that may happen when something goes wrong with the file.
(It shouldn't crash the IDE)
I improved the handling code for that a bit.