image is being used by stopped container

You can also use --force , -f Force removal of the image

If you use the -f flag and specify the image’s short or long ID, thenthis command untags and removes all images that match the specifiedID.

  docker rmi -f <image_id>

Note: this command removes images being used by containers.

docker docker-container

You need to delete the stopped container with docker rm, and then you can delete the image it uses with docker rmi.

docker docker-container

You may also find that you have stopped containers that are causing the lock. Remove these first using:

docker rm  $(docker ps -q -a)

Here we are listing the docker processes by just the ID and then removing those; however, docker rm will only remove stopped containers.

Next go back and remove the images using:

docker image rm <image_id>

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