This is for someone who is experiencing a similar error on a Windows operating system. I follow all the tutorial and for me (Machine with Windows 11 PRO, Docker desktop), the command: **docker run --name fastapi-container -p 80:80 -d -v $(pwd):/code fastapi-image** give me the next error: **docker: invalid reference format.** I change the command to **### docker run --name fastapi-container -p 80:80 -d -v ${pwd}:/code fastapi-image** And run ok