Could not find cordova.js script tag. Plugin loading may fail on android device

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Current behavior:

starting the app

Expected behavior:

see home page

Steps to reproduce:

Related code:

ionic cordova run android --prod

Other information:

Ionic info: (run ionic info from a terminal/cmd prompt and paste output below):

Ionic:

   ionic (Ionic CLI)             : 4.2.1 (C:\Users\albemaes\AppData\Roaming\npm\node_modules\ionic)
   Ionic Framework               : @ionic/angular 4.0.0-beta.11
   @angular-devkit/build-angular : 0.7.5
   @angular-devkit/schematics    : 0.7.5
   @angular/cli                  : 6.1.5
   @ionic/angular-toolkit        : not installed

Cordova:

   cordova (Cordova CLI) : 8.0.0
   Cordova Platforms     : not available
   Cordova Plugins       : cordova-plugin-ionic-keyboard 2.1.3, cordova-plugin-ionic-webview 2.2.0, (and 5 other plugins)

System:

   NodeJS : v8.11.1 (C:\Program Files\nodejs\node.exe)
   npm    : 6.4.1
   OS     : Windows 7

[oberoivarun]

Facing the same issue. But only with the --prod flag.

[VaultDeveloper]

I corrected this problem In angular.json, I set buildOptimizer and AoT to false, then I was able to build with --prod. When I reactivated AoT, I see the problem in the log. The dependency injection was doing the wrong way during the migration.