My question is still. Do you mean qt or qtcreator? Thats a huge difference. In qtcreator (the ide) there is somewhere at the project tab the possibilty to set a custom build / run environment. Doing a systemcall for sourcing doesn't make any sense. But running a qt application together with ros2 without sourcing before is also possible. The script doesn't do anything else than setting some environment variables. You could set the variables by hand using: https://stackoverflow.com/questions/899517/set-local-environment-variables-in-c Edit: See https://stackoverflow.com/questions/11272720/how-to-run-source-command-in-c why running source via a systemcall doesnt work and also doesn't make sense. --- [Visit Topic](https://discourse.ros.org/t/ros2-running-command-inside-qt/2673/5) or reply to this email to respond. If you do not want to receive messages from ros-users please use the unsubscribe link below. If you use the one above, you will stop all of ros-users from receiving updates. ______________________________________________________________________________ ros-users mailing list ros-users@lists.ros.org http://lists.ros.org/mailman/listinfo/ros-users Unsubscribe: