Native App Test - Unable to load script. Make sure youre either running a Metro Server

Hi Everyone, i have try to build a simple Native app, however when i publish it locally and test the app by using “Make it Native” app, unfortunately it keep return me an error message : Unable to load script. Make sure you're either running a Metro Server.   Please advise what i have missed or did wrong? thank you.  
1 answers

Please check your firewall settings. The Metro Bundler runs on port 8083 so that should be available for other applications to reach. Make sure you Mendix app runs on 8080 (is default, but just to be sure. )