I'm the getting the following exception in the logs when starting VS2010 from a sln (C#, not Python). This doesn't happen if I first start VS2010 and then open the sln

System.InvalidOperationException: Nullable object must have a value. at System.ThrowHelper.ThrowInvalidOperationException(ExceptionResource resource) at Microsoft.VisualStudio.Repl.ReplOutputClassifier.GetClassificationSpans(SnapshotSpan span) at Microsoft.VisualStudio.Text.Classification.Implementation.ClassifierTagger.<GetTags>d__0.MoveNext() at Microsoft.VisualStudio.Text.Tagging.Implementation.TagAggregator`1.<GetTagsForBuffer>d__16.MoveNext()