docker-compose up fails

[yuyaYS]

Describe the bug
Docker-compose up fails.
The error message says ModuleNotFoundError: No module named 'appMR.urls'
Even though submodule install was success, it still give same error message.

To Reproduce
Initially, I installed docker.io and docker-compose from apt package, but I received same error above when I run docker-compose up.
Then, I remove docker.io and docker-compose and installed docker/docker-compose following official guide.

The following process is to install docker/docker-compose up, sync with submodule and run the application.

1. Go to https://docs.docker.com/engine/install/ubuntu/ and install docker engine.
   Only change is that argument from $(lsb_release -cs) to focal in step 3, Set up the repository process.
2. Go to https://docs.docker.com/compose/install/ and install docker-compose
3. Go to the OnChain-Core repo and change the branch to dev
4. sync with submodule repos. Run following commands.

• git submodule init
• git submodule set-url appMR https://github.com/Romulus10/AppMR.git
• git submodule set-url clinic_messages https://github.com/Romulus10/DjangoMessage.git
• git submodule update

5. Run

• docker-compose up

Expected behavior
It should install dependencies and build application.

Desktop (please complete the following information):

• OS: linux mint 20.1(Ubuntu Focal)
• Docker version: 20.10.10
  API version: 1.41
  Go version: go1.16.9
  Git commit: b485636
  Built: Mon Oct 25 07:42:59 2021
  OS/Arch: linux/amd64
  Context: default
  Experimental: true
• docker-compose version 1.29.2, build 5becea4c

[Romulus10]

I put together a Linux Mint VM that recreates most of your environment, except it's running Mint 20.2 instead of 20.1.
I wasn't able to reproduce this problem. I'll give it a shot with 20.1 as well, but all of the versions you listed match up otherwise.

Just counting out the weird problems - could you verify that appMR/urls.py actually exists and hasn't been lost in some crazy git accident?

[yuyaYS]

I checked appMR/urls.py and it was exactly same. Also, I don't think there has been weird accident in git.
I tested out Mint 20.1 on VM and it works!!! Now just need to figure out why I am having trouble in my machine.

[Romulus10]

I didn't think there was anything weird with Git either honestly, I just wanted to count out anything we could think of.

That's really interesting. If you do manage to figure out the difference, please do let me know so I can make sure it gets documented. It might be something as simple as an old version of a package somewhere.

[yuyaYS]

I found two commands from the official document.

sudo rm -rf /var/lib/docker

sudo rm -rf /var/lib/containerd 

It is possibly due to the docker from apt package version was old and stayed /bin even after running remove command.

[Romulus10]

That very well might do it - is this confirmed as fixing the problem?

[yuyaYS]

Yes it is fixed.