I am going through a tutorial, but it is not working and I can't figure out why. It is "Python + JavaScript - Full Stack App Tutorial" https://www.youtube.com/watch?v=PppslXOR7TA I downloaded the files whole sale, but when I use 'npm run dev' command it says usage: vite [options] A simple and minimal static site generator. positional arguments: {init,new,build,serve} Options to help create, build and serve your project. options: -h, --help show this help message and exit -v, --version show program's version number and exit When I manually type in the code following the video I try to run it and there is a problem with the following line in ContactList.jsx {contacts.map((contact) => ( error is Uncaught TypeError: Cannot read properties of undefined (reading 'map') It looks like contact doesn't exist, and it is empty because I am just starting the program, but I have no idea what the problem could be. Continue reading...
