import { BrowserModule } from '@angular/platform-browser';
import { NgModule } from '@angular/core';
import { AppComponent } from './app.component';
import { CommonModule } from '@angular/common';
import { FormsModule } from "@angular/forms";

@NgModule({
  declarations: [
    AppComponent
  ],
  imports: [
    BrowserModule,
    FormsModule,
    CommonModule
  ],
  providers: [
  ],
  bootstrap: [AppComponent]
})
export class AppModule { }

    <div class="alert alert-secondary" *ngIf="message">
      {{ message}}
    </div>

ERROR Error: "Template error: Can't bind to 'ngIf' since it isn't a known property of 'div'."

ERROR Error: "Template error: Can't bind to 'ngIf' since it isn't a known property of 'div'."
    Angular 3
    AppComponent_Template app.component.html:4
    Angular 32
    ts main.ts:11
    Webpack 6
core.js:6014:19
    Angular 29
    ts main.ts:11
    Webpack 6

Angular CLI: 8.3.22
Node: 13.0.1
OS: win32 x64
Angular: 8.2.14
... animations, common, compiler, compiler-cli, core, forms
... language-service, platform-browser, platform-browser-dynamic
... router

Package                           Version
-----------------------------------------------------------
@angular-devkit/architect         0.803.22
@angular-devkit/build-angular     0.803.22
@angular-devkit/build-optimizer   0.803.22
@angular-devkit/build-webpack     0.803.22
@angular-devkit/core              8.3.22
@angular-devkit/schematics        8.3.22
@angular/cli                      8.3.22
@ngtools/webpack                  8.3.22
@schematics/angular               8.3.22
@schematics/update                0.803.22
rxjs                              6.4.0
typescript                        3.5.3
webpack                           4.39.2