Running backend script returning "System cannot find specified path"

[PMatthaei]

What i did:

• Install nodejs and npm
• Setup go
• go get gin
• Download project
• Run npm install (React tools deprecated?)
• Run start script -> nothing running on localhost:3000
• Run backend script -> Error(see in description)

I use Webstorm as IDE. Any help why this is not running. The line "cd backend; gin" does not seem to work for me. (Sorry i m relatively new to nodejs and go)