I downloaded the Stellaris starter bundle on Steam and installed it on my Macbook Air computer. Unfortunately, whenever I try to play the game, the message "an error has occurred while updating Sterallis (missing executable)" appears. This is because no files are downloaded when installing Sterallis on Steam, I have checked that there are non in the folder, and non when I open the "properties" option on Steam. The installation appears completed as it falls under "completed" in the downloads and updates tab in addition to me receiving a notification saying that the download was completed.
I have tried:
1) Uninstalling and re-installing Sterallis on Steam (several times)
2) Quitting and re-opening Steam
3) Clearing everything from my downloads and updates tab (and then uninstalling and reinstalling Strallis)
4) Turning my computer on and off
5) Backing up game files
None have worked. I currently do not have any antivirus software enabled, and I was really looking forward to playing this game, if anyone can offer any fixes or help on how to fix this please let me know, otherwise I will have to refund the game which would be incredibly dissapointing considering how I really wanted to play this with some of my friends.

I have tried:
1) Uninstalling and re-installing Sterallis on Steam (several times)
2) Quitting and re-opening Steam
3) Clearing everything from my downloads and updates tab (and then uninstalling and reinstalling Strallis)
4) Turning my computer on and off
5) Backing up game files
None have worked. I currently do not have any antivirus software enabled, and I was really looking forward to playing this game, if anyone can offer any fixes or help on how to fix this please let me know, otherwise I will have to refund the game which would be incredibly dissapointing considering how I really wanted to play this with some of my friends.