@Nick.Unger, I was having the same problem. At least on my system, UiRobot.exe exists in two places (neither in Program Files).
For me, it’s “C:\Users\Me\AppData\Local\UiPath\app-17.1.6435\UiRobot.exe” and “C:\Users\Me\AppData\Local\UiPath\UiRobot.exe”.
I got the side-by-side error just as you did when I ran “C:\Users\Me\AppData\Local\UiPath\UiRobot.exe” /file:“C:\Users\Me\Documents\UiPath\MyProcess\Main.xaml”
But, if I run “C:\Users\Me\AppData\Local\UiPath\app-17.1.6435\UiRobot.exe” /file:“C:\Users\Me\Documents\UiPath\MyProcess\Main.xaml” it works fine.
Hope this helps!
burque505