Unable to upload files to SharePoint 2010 document library
Problem : when i tried to upload files to a document library i was getting an error as follows: The URL ' / ' is invalid. It may refer to a nonexistent file or folder, or refer to a valid file or folder that is not in the current Web. Log provided the insights: ---------------------------------------------- SPFarm.ExternalBinaryStoreClassId is set to {5325e459-aec3-48fe-b928-0a160cd860de} but class is not registered SPFarm.ExternalBinaryStoreClassId is set to {5325e459-aec3-48fe-b928-0a160cd860de} but class is not registered. Exception = System.IO.FileNotFoundException: Retrieving the COM class factory for component with CLSID {5325E459-AEC3-48FE-B928-0A160CD860DE} failed due to the following error: 8007007e. at System.RuntimeTypeHandle.CreateInstance(RuntimeType type, Boolean publicOnly, Boolean noCheck, Boolean& canBeCached, RuntimeMethodHandle& ctor, Boolean& bNeedSecurityCheck) at System.RuntimeType.CreateInstanceSlow(Boolean publicOnly, Boolean