Angular常见错误

GET / or compiler error can't resolve all parameters for ApplicationModule: (?).

Just follow these simple steps :

 

1 Install core-js modeule.

npm i core-js

 

2 In the polyfills.ts file add the import statement

import 'core-js/es7/reflect';

 

3 In main.ts file add the import statements

import 'core-js/es6/reflect';

import 'core-js/es7/reflect';

 

4 check tsconfig

    "emitDecoratorMetadata": true,

    "experimentalDecorators": true,

 

Angular Custom Webpack