A question about running goal_picker main.py

[chenhuahua-orz]

When I run roslaunch robot_controller start.launch ,I encounter the following error.So I ran the commands in the launch file one by one and found that I had problems running rosrun goal_picker main.py

rosrun goal_picker main.py Goal picker node connected

• Serving Flask app "main" (lazy loading)
• Environment: production WARNING: This is a development server. Do not use it in a production deployment. Use a production WSGI server instead.
• Debug mode: on Goal picker node connected shutdown request: [/goal_picker] Reason: new node registered with same name

Does it affect navigation? How can I fix it? Thank you for your help.

[jkulhanek]

Only one instance of the goal_picker should be enough. The error should not be an issue; I guess, as long as the goal_picker works (you are able to reach it on the specified port).