Great post here with a fix/workaround. Essentially when you go to look in the windows .net framework directory that program is not there. In order to run this utility program you will need to use the Visual Studio command prompt that is in the Programs/Visual Studio menu.
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Tag: gacI got the following error the other day (it has been shortened...):
"the web part you attempted to add no longer exists in the closed web parts gallery."
This was a pretty disturbing error...there was no real apparent cause for this problem...nothing in the logs. After messing about with it for a while I figured out that it was a dll version in the GAC that was causing the problem. On my dev box I had an updated version but the version in our prod envs is different.
It would be nice if the server was a little more helpful with its error messages....HTH if you come across it
Heres a simple way for you to view your GAC in its naked state, go to the following registry location:
HKLM\Software\Microsoft\Fusion, once there create a DWORD value named "DisableCacheViewer" and set it to value 1.
Easy!