peerjs is not recognised as internal or external command

[kentctct]

hi after I run this line
'npm install peer' in my project folder terminal
peer is installed just fine
but when I start a peer server 'peerjs - - port 3000'
the terminal returns

peerjs is not recognised as internal or external command, operable program or batch file

I also tried 'npm install - g peer'
peer is installed just fine
but when I start the server the error is still the same

can anyone help? any help will be appreciated

[tamjeedhurcp]

I was having same issue with
' npm install peer '
i figured it out by using "sudo npm install -g peer'