unable to cast com object

Question

0.00/5 (No votes)

See more:

hello .....

when i am trying to run my website then it give following error....

"Unable to cast COM object of type 'System.__ComObject' to interface type 'Microsoft.VisualStudio.Shell.Interop.IVsDesignTimeAssemblyResolution'. This operation failed because the QueryInterface call on the COM component for the interface with IID '{EDA26258-95DF-44A0-A244-D545E6C1196C}' failed due to the following error: No such interface supported (Exception from HRESULT: 0x80004002 (E_NOINTERFACE)). "

i tried my best for find solution for it but i cant find it..... please help to solve this....

thank you.............

Posted 18-Mar-13 20:46pm

Rahul_Parekh

Add a Solution

Comments

Thomas Duwe 19-Mar-13 4:17am

What OS are you running? 32bit or 64bit?
What Visual Studio version are you using?

Rahul_Parekh 19-Mar-13 6:57am

i am running window 7 with 32 bit

i am using visual studio 2010.....

Jegan Thiyagesan 19-Mar-13 7:50am

Did you run your app in the Visual studio, or on its own?

Rahul_Parekh 19-Mar-13 8:29am

i run my website in my visual studio....

Jegan Thiyagesan 19-Mar-13 8:49am

In VS in the "Debug" menu, click on the "Exceptions" sub menu item (or use the short cut key Ctrl+D,E) to open the exception window.

In the exception Window Click on the "Find" button, this will open a search dialog. In the search dialog type "ComObject" and click on the "Ok" button to search for that exception.

The search will highlight the "System.Runtime.InteropServices.ComObjectInUseException" under the tree of "System.RuntimeInteropeServices". Click on the check box "System.Runtime.InteropServies" this will enable all child exceptions. Click ok to close the Exception window, and run the app again. This time the VS will break at the point when the exception occurs. When it breaks look at the code to see what is going wrong. If you cannot see any bug, post the code here.

Jegan Thiyagesan 19-Mar-13 8:59am

See the answer on this link

http://stackoverflow.com/questions/9788135/exception-from-hresult-0x80004002-e-nointerface

Remove all GUIDs and "ComVisible" attributes from the class, then switch the [assembly: ComVisible(true)] attribute in the AssemblyInfo-File to 'true'

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

Thomas Duwe · Accepted Answer · 2013-03-19T01:46:00

Hi,

there are some things you can try, if nothing helps, you either have to:

1) uninstall Visual Studio and reinstall
2) or reinstall your OS and Visual Studio

because something is broken with your COM-registration.

By the way, all these things I found via our good friend Google, so maybe you could try harder the next time before you post a question.
The information I reiterate here for your benefit are from following links:

http://social.msdn.microsoft.com/Forums/en-US/csharpide/thread/d9a0d7b9-fb8b-4539-a7ac-1aab9b25a0f0/[^]

and
http://social.msdn.microsoft.com/Forums/en-US/sqltools/thread/d5d3e5fc-d8ce-4f42-b7ea-9bbbb7756a20[^]

Ok.

Before you start, open the registry editor and look in following keys:

HKEY_CLASSES_ROOT\Interface\{EDA26258-95DF-44A0-A244-D545E6C1196C}\

HKEY_LOCAL_MACHINE\Software\Classes\Interface\{EDA26258-95DF-44A0-A244-D545E6C1196C}\

There should be 2 subkeys : NumMethods and ProxyStubClsid32.
In NumMethods there should be a key-value pair: (Standard), value=5
and in ProxyStubClsid32 a key-value-pair of: (Standard), value={2C28A1A9-EDB1-4A70-AE14-E0A5C7E81C2C}

If you do not have these entries
(either the main key of {EDA26258-95DF-44A0-A244-D545E6C1196C} is missing or the values differ)
then create these entries (all string entries).

If you have these entries/keys, then go to following keys:

HKEY_CLASSES_ROOT\CLSID\{2C28A1A9-EDB1-4A70-AE14-E0A5C7E81C2C}
HKEY_LOCAL_MACHINE\Software\Classes\CLSID\{2C28A1A9-EDB1-4A70-AE14-E0A5C7E81C2C}

In both should be a subkey named:InProcServer32 with
a key-value-pair of: (Standard), value=<Path>\msenv100p.dll
and a key-value-pair of: ThreadingModel, value=Both

Then check the path of the msenv100p.dll file. Does it exist at the specified location?

If not, search for this file (usually somewhere in the Program Files directory), open an administrator command prompt there
and re-register this dll with: regsvr32 msenv100p.dll

If your problem is not solved, try to re-register the msenv100p.dll anyway.

If this is not solving your problem, try to re-register the actxprxy.dll found in C:\Windows\system32\ in the same way as msenv100p.dll.

Hope this helps,

Thomas.