I was wondering if anyone as come across this probelm bear in mind i am remotly building a site with episerver I swear i was able to do a build at the start if you can point me in the right direction thanks jus ti have added new templats to episerversample and units and since they not build into the dll it can ft find them Error 1 Could not load file or assembly 'EPiServer.CodeBehind, Version=4.61.0.83, Culture=neutral, PublicKeyToken=null' or one of its dependencies. Failed to grant minimum permission requests. (Exception from HRESULT: 0x80131417)