Error reported in activity log

[sharwell]

System.AggregateException: One or more errors occurred. ---> System.ArgumentOutOfRangeException: StartIndex cannot be less than zero.
Parameter name: startIndex
   at System.String.Substring(Int32 startIndex, Int32 length)
   at ProjectFileTools.Helpers.XmlInfo.get_AttributeValue()
   at ProjectFileTools.QuickInfo.MsBuildPropertyQuickInfoSource.<GetQuickInfoItemAsync>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Language.Intellisense.Implementation.AsyncQuickInfoSession.<ComputeSourceContentAsync>d__39.MoveNext()
   --- End of inner exception stack trace ---
   at Microsoft.VisualStudio.Language.Intellisense.Implementation.AsyncQuickInfoSession.<UpdateAsync>d__32.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Language.Intellisense.Implementation.AsyncQuickInfoPresentationSession.<UpdateAsync>d__5.MoveNext()
---> (Inner Exception #0) System.ArgumentOutOfRangeException: StartIndex cannot be less than zero.
Parameter name: startIndex
   at System.String.Substring(Int32 startIndex, Int32 length)
   at ProjectFileTools.Helpers.XmlInfo.get_AttributeValue()
   at ProjectFileTools.QuickInfo.MsBuildPropertyQuickInfoSource.<GetQuickInfoItemAsync>d__4.MoveNext()
--- End of stack trace from previous location where exception was thrown ---
   at System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess(Task task)
   at System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification(Task task)
   at Microsoft.VisualStudio.Language.Intellisense.Implementation.AsyncQuickInfoSession.<ComputeSourceContentAsync>d__39.MoveNext()<---

[drewnoakes]

@sharwell are you sure this is the right repo for this? ProjectFileTools is not defined here.

[davidwengier]

This needs to move to https://github.com/dotnet/ProjFileTools but I don't have permission to transfer. @KirillOsenkov I'm guessing does?

[KirillOsenkov]

@sharwell FYI no one owns this repo now, so you're encouraged to fix it yourself ;)

[sharwell]

Just hit this again