Sep 05, 2013 09:21 AM|Michael T.|LINK
I know that this thread is a little bit old but I had the same error and I solved it (it works in my project).
In my web.config file I had assemblies added:
<add assembly="office, Version=18.104.22.168, Culture=neutral, PublicKeyToken=71e9bce111e9429c"/> and many other office assemblies.
The thing I have done is that I have removed all the assemblies from web.config file and had added dlls as a reference - Microsoft.Office.Interop.Excel.dll in this case.
I am not an expert and I just thinking loudly that web.config file is trying to pull dll. file from C:\Windows\assembly\ and if there if it could not be foud, returns error.
Hope this help someone.