title: Can't bind to 'primary' since it isn't a known property of 'button' Error
body: <p>Please Help!!
  I am trying to add a kendo button with the property <code>[primary] = 'true'</code> but I get this error: </p>
  
  <blockquote>
    <p>NodeInvocationException: Template parse errors: Can't bind to
    'primary' since it isn't a known property of 'button'. (" ][primary]="true">Log in&nbsp;</p>
  </blockquote>
  
  <p><strong>app.module.browser.ts</strong></p>
  
  <pre><code>import { NgModule } from '@angular/core';
  import { BrowserModule } from '@angular/platform-browser';
  import { AppModuleShared } from './app.module.shared';
  import { AppComponent } from './components/app/app.component';
  
  import { CommonModule } from '@angular/common';
  import { BrowserAnimationsModule } from '@angular/platform-browser/animations';
  import { InputsModule } from '@progress/kendo-angular-inputs';
  import { ButtonsModule } from '@progress/kendo-angular-buttons';
  
  @NgModule({
      bootstrap: [ AppComponent ],
      imports: [
          CommonModule
          , BrowserModule
          , AppModuleShared
          , BrowserAnimationsModule
          , InputsModule
          , ButtonsModule
      ],
      providers: [
          { provide: 'BASE_URL', useFactory: getBaseUrl }
      ]
  })
  export class AppModule {
  }
  
  export function getBaseUrl() {
      return document.getElementsByTagName('base')[0].href;
  }
  </code></pre>
  
  <p><strong>html</strong></p>
  
  <pre><code>&lt;div class="BodyBG"&gt;
      &lt;table style="width: 100%;"&gt;
          &lt;tr&gt;
              &lt;td&gt;
                  &lt;div id="login"&gt;
                      &lt;h4&gt;LIS 2.0&lt;/h4&gt;
                      &lt;div id="divOldLogin"&gt;
                          &lt;form (ngSubmit)="login(fLogin)" #fLogin="ngForm"&gt;
                              &lt;fieldset id="inputs"&gt;
                                  &lt;input kendoTextBox id="txtUsername" name="username" type="text" placeholder="Username" autofocus="autofocus" required="required" ngModel/&gt;
                                  &lt;div id="password"&gt;
                                      &lt;input kendoTextBox id="txtPassword" name="password" type="password" placeholder="Password" required="required" ngModel /&gt;
                                  &lt;/div&gt;
                                  &lt;button kendoButton type="submit" id="btnSubmit" (click)="login()" [primary]="true"&gt;Log in&lt;/button&gt;&amp;nbsp;
                              &lt;/fieldset&gt;
                          &lt;/form&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
              &lt;/td&gt;
          &lt;/tr&gt;
      &lt;/table&gt;
  &lt;/div&gt;
  </code></pre>