Question: One of the reasons that I moved from emacs to vim was to avoid awkward keybindings such as Ctrl+N and Ctrl+P for up and down. I would prefer more ergonomic keys like hjkl. However, I didn't find a way to navigate in Omnicomplete box without using arrow keys or Ctrl+N/P.

Does vim provide other keys for up and down?

![enter image description here](https://i.stack.imgur.com/nwyyr.png)

Answer: 
should enter your code directory and use "npm install" in your shell!
Just close your terminal and start it by right-clicking on it and selecting "Run as administrator" and then follow to the directory in which you want to create your server
and run
npm install express
done!