I can't make my admin account

Hello all !

I know there is another post like this but since it didn’t resolve my issue, i’m gonna make another post.

So, i’m hosting minuit.xyz from a Debian 9 VPS (Ovh) on Docker.
I had a lot of trouble setting it up but I’m all set … except
sudo docker-compose run --rm web rails mastodon:make_admin USERNAME=krhonos
doesn’t make me an admin …

I have : Don't know how to build task 'mastodon:make_admin' (see --tasks) Did you mean? mastodon:stats
Etc …

Checking out with tags/v2.5.0 and even recloning from scratch with the v2.5.0 tag didn’t worked for me as everything is just like before.

I don’t know where to search now.
Do you have any clue ?

Thanks a lot !

also have a look here:

I got the same, I solved it by hand:

connect to the database bash:
docker exec -i -t mastodon_db_1 /bin/bash

open database shell:
psql -u $user

connect to the database
select $database;

show tables

you can look into the table ‘users’ who is all on your machine
select * from users;

and can set manully set the admin flag
update users set admin = 't' where email = '$email'

I read that they replace rake with something, but could not figure out more, Im not a ruby expert