The default port 8080 cannot work

The npm run dev command can run without any problem, but i can see nothing in the browser with localhost:8080.

The lsof command shows:

lsof -i :8080
COMMAND   PID   USER   FD   TYPE             DEVICE SIZE/OFF NODE NAME
node    24732 Calvin   24u  IPv4 0xb6920191477c7e03      0t0  TCP localhost:http-alt (LISTEN)

So i’m sure no other applications bind this port, when i change the port in dev-server.js to 8090, it worked.

[yyx990803]

In build/dev-server.js, try changing app.listen(8080, 'localhost', function () { ... }) to just app.listen(8080, function () { ... }).

[InsCake]

I am using the simple-webpack template. No built/dev-server.js can be found.