I too have had this error, cook failed.
follow the path and red the log for an explanation.
(see C:\Users\ktp150130\AppData\Roaming\Unreal Engine\AutomationTool\Logs\C+Program+Files+Epic+Games+UE_4.22\Log.txt for full exception trace)
in my case it was admin rights and a fire wall block for the Unreal Deployment Server Launcher.