docker: The container name '/mysql' is already in use by container problem fixed

Docker mysql error fixed

docker run --name mysql -p 3306:3306 -e MYSQL_ROOT_PASSWORD=root -d mysql
docker: Error response from daemon: Conflict. The container name "/mysql" is already in use by container "9cacfca8f3b3416bc98dd3f0ffd5103a8f1f3a88c9b4331fa748b1efd0b3e37b". You have to remove (or rename) that container to be able to reuse that name.