Can't bind to 'formGroup' since it isn't a known property of 'form'.

Can't bind to 'formGroup' since it isn't a known property of 'form'. 

this error is because both

formGroup and formControl  directive are belongs to reactive forms module and you have not import this ReactiveFormModule in your's Angular application so this type of error occurred.

Import this module in your's app.module like this.

import { BrowserModule } from '@angular/platform-browser';

import { NgModule } from '@angular/core';

import { ReactiveFormsModule } from '@angular/forms';

import { AppComponent } from './app.component';

import { CreateEmployeeComponent } from './employee/create-employee/create-employee.component';

import { ListEmployeeComponent } from './employee/list-employee/list-employee.component';

import { AppRoutingModule } from './/app-routing.module';

@NgModule({

declarations: [

AppComponent,

CreateEmployeeComponent,

ListEmployeeComponent

],

imports: [

BrowserModule,

AppRoutingModule,

ReactiveFormsModule

],

providers: [],

bootstrap: [AppComponent]

})

export class AppModule { }