Error 10810 LsUrlOpenWithRole

Error 10810 happens on a Mac when you try to open a file and launch the file’s associated application via the command line. This happens especially when you are inside a tmux session.

This is a problem with tmux on OSX, it has been for quite some time. OSX 10.9 and below was able to work around this issue of tmux but the launchd of Yosemite can’t seem to do so.

The Fix

Get the reattach-to-user-namespace either from Homebrew or MacPorts

$ brew install reattach-to-user-namespace

then add the following line to .tmux.conf

set -g default-command "reattach-to-user-namespace -l /bin/bash"


  1. Macports, ticket 18357
  2. GitHub, atom issues/3093
filed under: #tmux #user-namespace #yosemite #osx10.10
related docs:
Doc created on 25 Jan 15

© Ted Hagos. All Rights Reserved