Docker - Bind for 0.0.0.0:4000 failed: port is already allocated -


i using docker first time , trying implement - https://docs.docker.com/get-started/part2/#tag-the-image

at 1 stage trying connect localhost command - 

$ curl http://localhost:4000

which showed error- 

curl: (7) failed connect localhost port 4000: connection refused

however, have solved following code - 

$ docker-machine ip default $ curl http://192.168.99.100:4000

after going fine, in last part, trying run app using following line according tutorial... 

$ docker run -p 4000:80 anibar/get-started:part1

but, got error 

c:\program files\docker toolbox\docker.exe: error response daemon: driver failed programming external connectivity on endpoint goofy_bohr (63f5691ef18ad6d6389ef52c56198389c7a627e5fa4a79133d6bbf13953a7c98): bind 0.0.0.0:4000 failed: port allocated.

it seems port allocated, can please me informing how can solve this.. lot :)

you need make sure previous container launched killed, before launching new 1 uses same port.

docker image ls docker rm -f <container-name>

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