Cities: Skylines (Steam) - Unable to launch the game from the Epic Games library

[Yayadingdong]

Describe your issue
Unable to launch the game from the Epic Games library

What is your game version?
2021.6

What expansions do you have installed?
Campus

What mods are you using?
None

Please explain your issue is in as much detail as possible.
Since yesterday I'm unable to launch the game from Epic games. It opens the launcher and whether I click on Resume or Play I get this error message with a red triangle "Launching the game failed". I'm able to launch the game from directly from the folder but it seems it doesn't load my DLCs though.

Can you replicate the issue? If yes, please explain how you did it.
Constant issue.

Attachments File(s) attached

 

[AndrewT]

The game has not changed recently, so I'm not sure what could have caused this to you. Was there an update to Windows, Epic, your antivirus app or anything else then?

I've seen this caused by missing Visual C++ modules, but that can't be the problem here if it ran before yesterday.

Please delete this file:
[Epic location]\Cities_Skylines\Cities_Data\output_log.txt
then run the game again - when it fails now does it make a new copy of that file? If so please attach that here.

 

[Yayadingdong]

Honestly I don't know I've looked everywhere and can't seem to find a solution. I really don't know where that comes from and tried deleting/reinstalling the launcher several times but it didn't help. I tried what you suggested it didn't do anything however I got no new copy of the file in the folder.

 

[Yayadingdong]

Alright so apparently I tried switching to the beta launcher and it worked. Resume game didn't do anything but Play enabled me to launch the game and load my latest save from the main menu.