Vue doesnt work

Question

I´m trying to make a todo list with vuejs but for some reason it doesnt work, which is strange since I have used Vuejs on other projects, If I use the chrome developer tools it says that vue js cant find the element, please help!!!!
https://code.sololearn.com/WoAJkDx5l6Rd

Answer 1

Just in case if this is also happening to you I found a solution.

I used the p5.js library and put my vue.js code inside the setup function. And now it works correctly :).