PackagingResults:Error: Error Unknown Command

There is a large mass of errors here. These will need to be fixed before UAT will be able to build and you’ll be able to package, which should hopefully fix the overall problem that is halting it which is that you’re running out of memory, as shown at the end of the UAT log.

The general gist of the errors that aren’t blueprint logic related stem from you having folder names with spaces in their names. Normally this would be prevented as the editor doesn’t allow it, but if you make the folder outside of the editor and add a space, it’ll cause this problem. There are also some files you have that are nested too deeply and their path name is exceeding the 255 character limit.

As mentioned previously, a good amount of the errors are from blueprint logic and I wouldn’t know how to fix them without seeing the related blueprints but they seem fairly self explanatory. I would suggest doing a Find (ctrl+f) for the word “Error” and “Warning” and going through these messages to find out what the problems are.