When I follow the steps in https://home-assistant.io/developers/frontend_creating_custom_panels/
and i run the HA, the front page always said Invalid Config.I dont know whats wrong with me?
Ok.now i have solved the problem with chaging the webcomponent_path to the fixed path
for example:/usr/local/lib/python3.4/dist-packages/homeassistant/components/frontend/www_static/panels/hello.html