Hello Milko,

thank you for the prompt response.

We tried updating it to Net Advantage Select 2011 Vol 2 but the visual studio is still crashing when we try to access the Designer Window.

i have attached the screenshot of it as well.

 Any suggestions on how to resolve this?

kind regards

Hello Nancy,

Thank you for your feedback.

Please check the following points and let me know if any of these solve your issue:

• Are you using User Controls in your application? If so check if they are build with the same version as the one you are using in your application;
• Try to delete the content of license file. You can find the license file (licenses.licx) by expanding the Properties node of your project in Solution Explorer;
• Try to delete user generated files and to open directly the project file only.

If none of this solves your issue you may want to attempt to get an exception and call stack by attaching a debugger to Visual Studio before the crash. You can follow these steps to use a second instance of Visual Studio to do this:

1. Open your project in Visual Studio 2010.
2. Open a second instance of Visual Studio 2010
3. Ensure that Enable Just My Code is unchecked in the debugging options
1. From the menu select Tools -> Options
2. Select Debugging from the tree on the left
3. Uncheck "Enable Just My Code (Managed only) if checked.
4. From the menu select Tools -> Attach to Process
5. In the Attach to Process dialog, select the first instance of Visual Studio from step 1.
6. Click Attach
7. From the menu select Debug -> Exceptions...
8. In the Exceptions Dialog check thrown next to Common Language Runtime Exceptions
9. Click OK
10. In the instance of Visual Studio from step 1, open the form that causes Visual Studio to crash.

If a managed exception is caught the second instance of Visual Studio should break and you can get a call stack and exception details.  If the there is no exception caught, you may want to try to catch other exception types.

Note that if you are not running Visual Studio as Administrator this could affect if an exception is caught.  If nothing was caught you may want to try running both instances of Visual Studio as Administrator.

If you do get a call stack and exception details, post it on this thread.

Let me know if you have any questions with this matter.

Hello Milko,

Thank you for the reply.

We tried to recreate all of the steps which you mentioned but still could not get the call stack. What we did was open 2 instances of Visual Studio with our project open in one of them and the debugger attached. Upon opening the designer window, the visual studio crashes and there is no call stack. But the console does give something in the output which i have copied and attached to this message as a text file. 

Please let me know if the console output gives something valuable for us to figure out what the problem is or if there is anything else that i need to do.

kind regards.

Hello Nancy,

Thank you for your feedback and error log provided.

Looking at this log I can see, e.g. at line 148, that Visual Studio is trying to load Infragistics libraries from 2008.3. Can you confirm that your solution was updated to version 2011.2? To do so please, check all the references. Then clean your solution and rebuild it again.

Please let me know if this solves your issue.