Error: listen eacces
Did you try running your application on port# < 1024 and faced the following error?
It means you do not have enough permission to listen on port# < 1024. If you run the same command with elevated privilages then you should not see that error. If you are on *nix based system using sudo before your command should resolve this issue. For example, using following command allowed me to host my application on port# 443
Error: listen EACCES
sudo npm start