Exception while debugging - by joshd1

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ID 774062 Comments
Status Active Workarounds
Type Bug Repros 1
Opened 12/11/2012 12:09:15 PM
Access Restriction Public


While debugging, I get a dialog that pops up that says an exception has occured.  I pulled this out of the log:

    <time>2012/12/11 20:00:53.155</time>
    <source>Editor or Editor Extension</source>
    <description>System.NullReferenceException: Object reference not set to an instance of an object.&#x000D;&#x000A;   at Microsoft.VisualStudio.Debugger.Parallel.UI.ThreadMarkerGenerator.LocationMatchesTagger(DocumentContext location, MarkerTagger tagger)&#x000D;&#x000A;   at Microsoft.VisualStudio.Debugger.Parallel.UI.ThreadMarkerGenerator.&lt;&gt;c__DisplayClass1.&lt;GetMarkersForTagger&gt;b__0(ThreadMarker marker)&#x000D;&#x000A;   at System.Linq.Enumerable.WhereListIterator`1.MoveNext()&#x000D;&#x000A;   at Microsoft.VisualStudio.Debugger.Parallel.Extension.MarkerTagger.&lt;GenerateTagList&gt;d__a.MoveNext()&#x000D;&#x000A;   at System.Linq.Buffer`1..ctor(IEnumerable`1 source)&#x000D;&#x000A;   at System.Linq.Enumerable.ToArray[TSource](IEnumerable`1 source)&#x000D;&#x000A;   at Microsoft.VisualStudio.Debugger.Parallel.Extension.MarkerTagger..ctor(ITextBuffer buffer, ITextDocument document)&#x000D;&#x000A;   at Microsoft.VisualStudio.Debugger.Parallel.Extension.MarkerTaggerProvider.CreateTagger[T](ITextBuffer buffer)&#x000D;&#x000A;   at Microsoft.VisualStudio.Text.Tagging.Implementation.TagAggregator`1.GatherTaggers(ITextBuffer textBuffer)</description>

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Posted by Omer Raviv on 8/15/2013 at 12:21 AM
A google search revealed this exception can be caused by a Visual Studio extensions such as Wix/CodeDigger:
Posted by Microsoft on 12/20/2012 at 2:01 AM
Hi, given that we have not heard back from you in these days. We will go ahead and close this Connect Issue. If you get a chance to review and provide the information requested earlier, you can go ahead and reactivate this issue.
Posted by Microsoft on 12/17/2012 at 12:27 AM
Please go to the following folder to have a check. Thanks!

Posted by Microsoft on 12/17/2012 at 12:24 AM
I am currently standing by for an update from you and would like to know how things are going on your end. If you could get back to me at your earliest convenience with information I request, we will be able to make headway towards a resolution. I look forward to hearing from you.
Posted by Microsoft on 12/12/2012 at 8:00 PM
Thank you for submitting feedback on Visual Studio and .NET Framework. In order to efficiently investigate and reproduce this issue, we are requesting additional information outlined below.

Could you please give us dump of this issue so that we can conduct further research?

Visual Studio now has an extension called Visual Studio 11 Feedback Tool , available on the VS gallery(http://visualstudiogallery.msdn.microsoft.com/f8a5aac8-0418-4f88-9d34-bdbe2c4cfe72).

The extension allows you to
1.    upload files,
2.    collect trace and dump files
3.    collect steps while you're repro'ing the issue, as well as
4.    SQM logs about VS extensions installed
5.    System details (in DxDiag output)

We look forward to hearing from you with this information.

Microsoft Visual Studio Connect Support Team
Posted by Microsoft on 12/11/2012 at 12:51 PM
Thank you for your feedback, we are currently reviewing the issue you have submitted. If this issue is urgent, please contact support directly(http://support.microsoft.com)