Visual Studio 2008 Designer crashes when editing WPF xaml…

I have been banging my head on the wall about my Visual Studio just disappearing from view whenever I open one of my WPF forms. As you can imagine, this puts a pretty big cramp in development efforts when you can never use the designer.

I looked in my event viewer and found this error hanging out.

Event Type:	Error
Event Source:	.NET Runtime
Event Category:	None
Event ID:	1023
Date:		3/10/2010
Time:		11:03:02 AM
User:		N/A
Computer:	BSEEKFORD00111
Description:
.NET Runtime version 2.0.50727.3603 - Fatal Execution Engine Error (7A2E10D2) (0)

For more information, see Help and Support Center at http://go.microsoft.com/fwlink/events.asp.

The resolution is that it turns out your probably installed Power Commands for Visual Studio 2008. You can uninstall them, which sucks. Or you can apply a really easy patch.

Go to your devenv.exe.config file sitting in your Program FilesMicrosoft Visual Studio 9Common7IDE

Add this to the bottom of the dependent assemblies section:

<dependentAssembly>

<assemblyIdentity name="Microsoft.PowerCommands" publicKeyToken="null" culture="neutral"/>

<codeBase version="1.1.0.0" href="C:Program FilesPowerCommandsMicrosoft.PowerCommands.dll"/>

</dependentAssembly>

Start Visual Studio back up and rock on.

Note: Make sure the path you enter matches where everything is installed. DUH!

Credits to these guys for all their help.

Happy Coding!

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