How to resolve the error "docker: Error response from daemon: Conflict. The container name '/mysql' is already in use by container '421345f4e65f4e564f5e6fa5ef65we6f4af4af56a46fe4a'. You have to remove (or rename) that container to be able to reuse that name"

The error "docker: Error response from daemon: Conflict. The container name '/mysql' is already in use by container '421345f4e65f4e564f5e6fa5ef65we6f4af4af56a46fe4a'. You have to remove (or rename) that container to be able to reuse that name" is caused by attempting to create a new container with a name that is already in use by an existing container. Docker does not allow multiple containers to have the same name, so this conflict must be resolved before the new container can be created.

Solution :

To resolve this error, you need to remove or rename the existing container before you can create a new container with the same name. You can remove the existing container using the following command:

    	docker rm 421345f4e65f4e564f5e6fa5ef65we6f4af4af56a46fe4a
    

This command will remove the container with the specified container ID. Alternatively, you can remove all stopped containers using the following command:

    	docker container prune
    

After you have removed the existing container, you should be able to create a new container with the same name.