Ionic serve --lab (BLACK PAGE) [-- IONIC 4 --]


#1

Hello, i’m trying to use Ionic 4. When i typing “Ionic serve lab” and go to browser appear this:

Failed to load resource: the server responded with a status of 404 (Not Found)
:8200/build/app/app.jcrhwwkm.js:1

Why? Thanks for the help!

Ionic:

ionic (Ionic CLI) : 4.6.0 (C:\Users\nicol\AppData\Roaming\npm\node_modules\ionic)
Ionic Framework : @ionic/angular 4.0.0-rc.1
@angular-devkit/build-angular : 0.11.4
@angular-devkit/schematics : 7.1.4
@angular/cli : 7.1.4
@ionic/angular-toolkit : 1.2.2

System:

NodeJS : v11.6.0 (C:\Program Files\nodejs\node.exe)
npm : 6.5.0-next.0
OS : Windows 10