Ionic 4 - Windows platform is not working

Ionic 4 windows platform is not working.

“dependencies”: {
@angular/animations”: “^7.2.2”,
@angular/cdk”: “^7.2.2”,
@angular/common”: “^7.2.2”,
@angular/core”: “^7.2.2”,
@angular/forms”: “^7.2.2”,
@angular/http”: “^7.2.2”,
@angular/material”: “^7.2.2”,
@angular/platform-browser”: “^7.2.2”,
@angular/platform-browser-dynamic”: “^7.2.2”,
@angular/router”: “^7.2.2”,
@ionic-native/core”: “^5.0.0”,
@ionic-native/file”: “^5.0.0”,
@ionic-native/http”: “^5.0.0”,
@ionic-native/splash-screen”: “^5.0.0”,
@ionic-native/status-bar”: “^5.1.0”,
@ionic/angular”: “^4.0.0”,
@ngx-translate/core”: “^11.0.1”,
@ngx-translate/http-loader”: “^4.0.0”,
“chart.js”: “^2.7.3”,
“cordova”: “8.1.2”,
“cordova-android”: “7.0.0”,
“cordova-android-support-gradle-release”: “^2.0.1”,
“cordova-plugin-advanced-http”: “2.0.4”,
“cordova-plugin-device”: “^2.0.2”,
“cordova-plugin-file”: “^6.0.1”,
“cordova-plugin-file-transfer”: “^1.7.1”,
“cordova-plugin-ionic-keyboard”: “^2.1.3”,
“cordova-plugin-ionic-webview”: “3.1.1”,
“cordova-plugin-splashscreen”: “^5.0.2”,
“cordova-plugin-statusbar”: “2.4.2”,
“cordova-plugin-whitelist”: “^1.3.3”,
“cordova-windows”: “6.0.1”,
“core-js”: “^2.5.4”,
“ng2-charts”: “^1.6.0”,
“rxjs”: “^6.3.3”,
“zone.js”: “~0.8.29”
}

This is my project state.
Please help me. Thanks.