turtlebot@turtlebot-bot:~$ sudo apt-get update
Err:1 http://ports.ubuntu.com xenial InRelease Could not connect to localhost:9999 (127.0.0.1). - connect (111: Connection refused)
Err:2 http://ports.ubuntu.com xenial-updates InRelease Unable to connect to localhost:9999:
Err:3 http://ports.ubuntu.com xenial-security InRelease Unable to connect to localhost:9999:
Err:4 http://ports.ubuntu.com xenial-backports InRelease Unable to connect to localhost:9999:
Err:5 http://ppa.launchpad.net/flexiondotorg/minecraft/ubuntu xenial InRelease Could not connect to localhost:9999 (127.0.0.1). - connect (111: Connection refused)
Err:6 http://ppa.launchpad.net/ubuntu-mate-dev/welcome/ubuntu xenial InRelease Unable to connect to localhost:9999:
Err:7 http://packages.ros.org/ros/ubuntu xenial InRelease
Could not connect to localhost:9999 (127.0.0.1). …
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