Revision history [back]

This could be due to a few reasons:

1. The gems may not be installed in the Docker image. Make sure that you have included the necessary gem files in the Dockerfile and run bundle install to install them.

2. You may not be running the console in the correct Docker container. Make sure that you are in the container that contains the application code and the installed gems.

3. The environment variables may not be set correctly in the Docker container. Make sure that you have set the necessary environment variables to locate the gems in the container.

4. The version of Rails installed in the Docker container may not match that of the application code. Make sure that the version of Rails installed in the container matches the version used in the application code.