While creating an MDT task sequence in SCCM, I encountered the error message: System.IO.FileNotFoundException: Could not find file '\imagex.exe'.
I started Googling the error and the best info I found was to either copy over the imageX.exe or update the distribution point. Neither fix worked. After troubleshooting the issue for a couple of hours, I thought that maybe there was an extension issue between MDT and SCCM, so I removed the extension using the Configure ConfigMgr Integration tool. I then readded the extension using the same tool. This fixed the error message and it now creates an MDT task sequence with no problems.