Cant install dev dependencies

[HowToGamingg]

okay, so im pretty new to github and everything so this can totally just be me messing up, but I got to the install dev dependencies part and I copy the command into the command prompt and it tells me there's no .exe or batch file to run.

C:\Users\luthe>C:\Users\luthe\OneDrive\Desktop\pokemon-essentials-master\pokemon-essentials-master\pokemon-essentials npm i
'C:\Users\luthe\OneDrive\Desktop\pokemon-essentials-master\pokemon-essentials-master\pokemon-essentials' is not recognized as an internal or external command,
operable program or batch file.