Exception after downgrading from 2008 vol3 to vol1

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Exception after downgrading from 2008 vol3 to vol1

Chris posted over 15 years ago

I'm working on an ASP.NET app using the NetAdvantage 2008 vol 1 controls. A couple weeks ago, my machine was affected by the Conficker worm, and the It group here stripped my machine. When I reloaded the NetAdvantage controls, I mistakenly installed vol 3 instead of vol 1 and ran the upgrade utility when I had some errors.

I ended up uninstalling and installing vol 1 again and running the upgrade utility, but now I have an intermittent problem where I launch my app, and when I navigate to a page with the Infragistic controls, I get the following error:

An Exception of type 'System.IO.FileLoadException' occurred in webpo.dll but was not handled in user code. Additional information: The given assembly name or codebase was invalid. (Exception from HRESULT: 0x80131047) Break/Continue

I have found that if I break, stop debugging, and Rebuild the Solution, it works fine for a bunch of debugs, then comes back.

I had never received this error before.

Any idea what's causing this and how to solve it? Visual Studio 2005 VB.NET Thanks! Chris

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Chris posted over 15 years ago in reply to [Infragistics] Rumen Stankov

webpo.dll is an assembly that is part of my application. Other than the original steps I mentioned, the machine is no different (that I know of) from before the worm problem. I'm not using any remote debugging. The rest of the application is working properly; I only get the error on the page with the Infragistic controls. On that page, I have a Webgrid, menu, calendar, and some dialog boxes. It's very strange because the solution is to Rebuild All and it's fine again.
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[Infragistics] Rumen Stankov posted over 15 years ago

Hello,
This one could be tough. It is definitely a weird error that I have not seen before, and the more infteresting thing is that it originates in "webpo.dll" -- this assembly is not part of the Infragistics suite, so I am really not sure how this relates to our products.
Is webpo.dll a third party assembly, or an assembly that is part of your application? Is there something different in your setup from before -e.g. new OS, or installing 64-bit OS instead of 32? Are you using any sort of remote debugging that may require addition permissions?
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