find the original file and copy it to data files, and run auto update, if you still encounter missing files, copy and paste the missing file to the data files, and if still theres missing files. just jo it over and over again until it works. thats how i solved my problems.. : D
Try to run AutoUpdate again. I've fixed some update. It happens to very small percent of the community but it's now all good. Please let us know if everything is OK after you ran AutoUpdate.