Ionic 4 net::ERR_CONNECTION_REFUSED(http://localhost/)

问题

I'm facing a problem that when I try to create mobile Front-End application based on Ionic 4 but a net:ERR_CONNECTION_REFUSED(http://localhost/) show up when I run it with cordova on android studio emulator. This what i m using

Angular CLI: 7.1.4
Node: 8.9.4
OS: win32 x64
Ionic version   4.5.0

My config.xml

回答1:

For anyone else losing their mind that might be using Capacitor go into your capacitor.config.json file and remove this:

"server": {
    "url": "http://localhost:8100"
}

I've had this in my config file for sometime and only just now started causing issues so I'm not sure if a new Capacitor patch has changed this behavior on prod builds or what but this resolved my issue. God speed to the rest of you.

来源：https://stackoverflow.com/questions/54525558/ionic-4-neterr-connection-refusedhttp-localhost