I added a new Feature with EventReceiver to my Solution. While trying to activate this WebApplication feature I got the errormessage, that Sharepoint “Failed to create receiver object from assembly“.
What caused the error?
The SharePoint Timer service cached the old DLL. After re-deploying my solution the cache wasn’t cleared. The reference to my EventReveiver wasn’t found in the old DLL.
What’s the solution?
Restart the SharePoint Timer Service on all servers in the farm.