configuring VNC server: vim ~/.vnc/xstartup command shows ' No such file or directory'

I have started learning Linux only a couple of days ago. Tried to install ubuntu desktop in my ubuntu 18.04 EC2 instance, but failed in a stage with this command vim ~/.vnc/xstartup. it says 'No such file or directory'.

Know someone who can answer? Share a link to this question via email, Twitter, or Facebook.