Steam Download Error Update Required, Update Canceled

The Solution: Special Thanks to @TheGenesectMaster Check the content log under Steam\logs folder. See which file is missing and put it in the downloading folder under steam When you try to download certain games on steam sometimes this error appears. in endless loop "update required" and "update canceled state". I uninstalled games and delete content , tried steam://flushconfig and repair libaries and change download region but none of them worked. I decide to shoot a video for people to understand what the real problem is. it is a bit of luck actually AC: Freedom cry game stuck at the and of download state. AC:Rogue keeps downloading gb's of data.