"Config file was not found, ensure containers/app.yml exists" (after last update)

I just did a git pull of my discourse folder and run ./launcher rebuild app. I got the following message :

Config file was not found, ensure containers/app.yml exists

Available configs ( data, web_pe ) 

Should I rename one of my configs? how?

Did you rename your app.yml in /var/discourse/containers?

The install guide leaves you with an app.yml in that folder. If you followed a different install process or renamed that file then ./launcher rebuild app won’t work - the app is derived from app.yml. Instead specify the correct container name there.

So, if you renamed app.yml to web.yml or site1.yml you would instead use:

./launcher rebuild web
./launcher rebuild site1


Ho you’re right ! sorry