$ ionic cordova build android --prod
Running app-scripts build: --prod --platform android --target cordova
[11:01:56]  build prod started ...
[11:01:56]  clean started ...
[11:01:56]  clean finished in 30 ms
[11:01:56]  copy started ...
[11:01:56]  deeplinks started ...
[11:01:56]  deeplinks finished in 127 ms
[11:01:56]  ngc started ...
[11:02:02]  ngc finished in 6.45 s
[11:02:02]  preprocess started ...
[11:02:02]  preprocess finished in less than 1 ms
[11:02:02]  webpack started ...
[11:02:06]  copy finished in 10.18 s
Error: ./node_modules/tslib/tslib.es6.js
Module build failed: TypeError: Cannot read property 'type' of undefined
    at Object.getEffectiveTypeAnnotationNode (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:9341:18)
    at assignContextualParameterTypes (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:41652:25)
    at checkFunctionExpressionOrObjectLiteralMethod (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:41948:29)
    at checkExpressionWorker (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42959:28)
    at checkExpression (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42898:42)
    at checkBinaryLikeExpression (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42475:29)
    at checkBinaryExpression (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42467:20)
    at checkExpressionWorker (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42980:28)
    at checkExpression (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42898:42)
    at checkBinaryLikeExpression (C:\gitlab\veneto-app\node_modules\typescript\lib\typescript.js:42475:29)
 @ ./node_modules/@angular/platform-browser/esm5/platform-browser.js 9:0-44
 @ ./src/app/main.ts,./src/app/main.ts
Module not found: Error: Can't resolve './app.module.ngfactory' in 'C:\gitlab\veneto-app\src\app'
resolve './app.module.ngfactory' in 'C:\gitlab\veneto-app\src\app'
  using description file: C:\gitlab\veneto-app\package.json (relative path: ./src/app)
    Field 'browser' doesn't contain a valid alias configuration
  after using description file: C:\gitlab\veneto-app\package.json (relative path: ./src/app)
    using description file: C:\gitlab\veneto-app\package.json (relative path: ./src/app/app.module.ngfactory)
      no extension
        Field 'browser' doesn't contain a valid alias configuration
        C:\gitlab\veneto-app\src\app\app.module.ngfactory doesn't exist
      .ts
        Field 'browser' doesn't contain a valid alias configuration
        C:\gitlab\veneto-app\src\app\app.module.ngfactory.ts doesn't exist
      .js
        Field 'browser' doesn't contain a valid alias configuration
        C:\gitlab\veneto-app\src\app\app.module.ngfactory.js doesn't exist
      .json
        Field 'browser' doesn't contain a valid alias configuration
        C:\gitlab\veneto-app\src\app\app.module.ngfactory.json doesn't exist
      as directory
        C:\gitlab\veneto-app\src\app\app.module.ngfactory doesn't exist
[C:\gitlab\veneto-app\src\app\app.module.ngfactory]
[C:\gitlab\veneto-app\src\app\app.module.ngfactory.ts]
[C:\gitlab\veneto-app\src\app\app.module.ngfactory.js]
[C:\gitlab\veneto-app\src\app\app.module.ngfactory.json]
[C:\gitlab\veneto-app\src\app\app.module.ngfactory]
 @ ./src/app/main.ts 2:0-60
    at new BuildError (C:\gitlab\veneto-app\node_modules\@ionic\app-scripts\dist\util\errors.js:16:28)
    at callback (C:\gitlab\veneto-app\node_modules\@ionic\app-scripts\dist\webpack.js:121:28)
    at emitRecords.err (C:\gitlab\veneto-app\node_modules\webpack\lib\Compiler.js:265:13)
    at Compiler.emitRecords (C:\gitlab\veneto-app\node_modules\webpack\lib\Compiler.js:371:38)
    at emitAssets.err (C:\gitlab\veneto-app\node_modules\webpack\lib\Compiler.js:258:10)
    at applyPluginsAsyncSeries1.err (C:\gitlab\veneto-app\node_modules\webpack\lib\Compiler.js:364:12)
    at next (C:\gitlab\veneto-app\node_modules\tapable\lib\Tapable.js:218:11)
    at Compiler.compiler.plugin (C:\gitlab\veneto-app\node_modules\webpack\lib\performance\SizeLimitsPlugin.js:99:4)
    at Compiler.applyPluginsAsyncSeries1 (C:\gitlab\veneto-app\node_modules\tapable\lib\Tapable.js:222:13)
    at Compiler.afterEmit (C:\gitlab\veneto-app\node_modules\webpack\lib\Compiler.js:361:9)