no exported member 'Observable'
问题 I am trying to use agm in my angular project So I installed npm install @agm/core --save but when I use AgmCoreModule.forRoot({ apiKey: 'my api' }), It makes an error that I can not understand : ERROR in node_modules/@agm/core/services/google-maps-api-wrapper.d.ts(2,10): error TS2305: Module '"C:/Users/Shadi/Documents/development/iot1/node_modules/rxjs/Observable"' has no exported member 'Observable'. node_modules/@agm/core/services/managers/circle-manager.d.ts(2,10): error TS2305: Module '"C