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{"@context":"https://schema.org","@type":"DiscussionForumPosting","headline":"Error starting userland proxy: mkdir /port/tcp:0.0.0.0:80:tcp:172.17.0.3:80: input/output error","articleBody":"First I follow the guide in https://docs.docker.com/compose/gettingstarted/#step-3-define-services-in-a-compose-file  and get the following error building and runing the app:  \r\n` Creating network \"composetest_default\" with the default driver\r\nCreating composetest_web_1   ... error\r\nCreating composetest_redis_1 ...\r\n\r\nERROR: for composetest_web_1  Cannot start service web: driver failed programming external connectivity on endpoint composetest_web_1 (adb07b15207b5754eb59d78c256be73bdbc87a12a6d5d7f6e277b9e983368928): Error starting uCreating composetest_redis_1 ... doneERROR: for web  Cannot start service web: driver failed programming external connectivity on endpoint composetest_web_1 (adb07b15207b5754eb59d78c256be73bdbc87a12a6d5d7f6e277b9e983368928): Error starting userland proxy: mkdir /port/tcp:0.0.0.0:5000:tcp:172.19.0.2:5000: input/output error\r\nERROR: Encountered errors while bringing up the project.`  \r\nThen I clone this repository and follow the steps for local deployment and get the following error:  \r\n`ERROR: The Compose file '.\\docker-compose.yml' is invalid because:\r\nweb.ports is invalid: Port ranges don't match in length`  \r\nSo I change the range port from \":80\" to \"80:80\" and run `docker-compose up`. But now Im getting a similar error:  \r\n`Starting dockercloud-quickstart-python_web_1 ... error\r\n\r\nERROR: for dockercloud-quickstart-python_web_1  Cannot start service web: b'driver failed programming external connectivity on endpoint dockercloud-quickstart-python_web_1 (c9adc522ac20e674b742718f83b07840550c648f8c604c880944c7769cea4511): Error starting userland proxy: mkdir /port/tcp:0.0.0.0:80:tcp:172.17.0.3:80: input/output error'\r\n\r\nERROR: for web  Cannot start service web: b'driver failed programming external connectivity on endpoint dockercloud-quickstart-python_web_1 (c9adc522ac20e674b742718f83b07840550c648f8c604c880944c7769cea4511): Error starting userland proxy: mkdir /port/tcp:0.0.0.0:80:tcp:172.17.0.3:80: input/output error'\r\nERROR: Encountered errors while bringing up the project.`\r\n\r\n**¿Why I can't deploy it locally?**  \r\nI will try using the Docker Hub to see if the error continue.","author":{"url":"https://github.com/YeyoCoder","@type":"Person","name":"YeyoCoder"},"datePublished":"2018-07-14T00:31:25.000Z","interactionStatistic":{"@type":"InteractionCounter","interactionType":"https://schema.org/CommentAction","userInteractionCount":0},"url":"https://github.com/5/dockercloud-quickstart-python/issues/5"}