I need help coding a map of my school campus where you can navigate through the school with gps

so yeah just to note, i am a complete beginner at mit app inventor and like said in the title, i need help coding a map of my school campus where you can navigate through the school with gps for a school project, i was wondering if you guys can check this code and get some feedback on what to add or what to fix

You might start by reading the help (?) for the location sensor.

Also see

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