June 02, 2011

Sitefinity 4 "ExceptionManager Cannot be Constructed" error

If you're using Sitefinity 4.x and suddenly begin seeing this curious ASP.Net error:

"The type ExceptionManager cannot be constructed. You must configure the container to supply this value."

...this error results when the App_Data folder, and files within, are marked Read Only - if you're using TFS for source control, make sure your App_Data folder has been Checked Out. Your app should then launch normally.

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1 comment:

  1. Thank You! I have been scratching my head on this one for a while.