Yes.
What you left out of your screen shot is
./launcher enter app
Config file was not found, ensure containers/app.yml exists
Available configs ( ... web_only ... )
You need to do a
./launcher enter web_only
rather than app.
I updated my instructions at Managing a Two-Container Installation - Documentation - Literate Computing Support to make this more clear.
It’s almost always better to paste the text from a terminal rather than a picture of one…