"Object reference not set to an instance of an object" opening a file in the solution explorer - by Jerome Laban

Status : 

  Fixed<br /><br />
		This item has been fixed in the current or upcoming version of this product.<br /><br />
		A more detailed explanation for the resolution of this particular item may have been provided in the comments section.

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ID 500551 Comments
Status Closed Workarounds
Type Bug Repros 1
Opened 10/23/2009 7:02:51 PM
Access Restriction Public


Cannot open a text editor if the font used is "Proggy Opti Small" (http://www.proggyfonts.com/index.php?menu=download).

A null reference exception pops up without any further details after double clicking on a C# file icon in the Solution Explorer.

From analysing previous exceptions with a debugger, a few other exceptions thrown in System.Drawing.dll are masked by the NullReferenceException. (ArgumentException: Only TrueType fonts are supported. This is not a TrueType font.) 

I'm marking this issue as blocking because the error is not detailed enough for the user.

Also, selecting a new font does not fix the issue right away. A complete restart of visual studio is mandatory.

If non TrueType fonts are not supported, they should not be displayed as a choice in the font selector.

A memory dump is available if necessary.
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Posted by Microsoft on 10/30/2009 at 10:12 PM

Thank you for reporting this issue. As you suspected this is a result of raster fonts not being supported with Visual Studio 2010 and WPF 4.0. For further information on this issue, please check out our blog post: http://blogs.msdn.com/visualstudio/archive/2009/10/27/VS-2010-Beta2_3A00_--Workaround-for-Raster-Font-Settings-Issue.aspx

I'm resolving this issue as fixed and you shouldn't be able to get the release version of Visual Studio into this state as it will filter out raster fonts.

-Sean Laberee
VS Platform Team
Posted by Microsoft on 10/26/2009 at 5:00 AM
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)