title: ionic 3 : Failed to load resource: net::ERR_FILE_NOT_FOUND logo.png
body: <p>I'm building ionic 3 app, I have simple login page work perfectly in web mode but when I run it on android the logo doesn't appear.</p>
  
  <p><a href="https://i.stack.imgur.com/jr26X.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/jr26X.png" alt="enter image description here"></a> </p>
  
  <p><a href="https://i.stack.imgur.com/5eK4i.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/5eK4i.png" alt="enter image description here"></a></p>
  
  <p>here is the login page code : </p>
  
  <pre><code>&lt;ion-content padding style="background:url('assets/imgs/bg.jpg') no-repeat center;background-size:cover;" id="page1"&gt;
      &lt;div class="header padding text-center"&gt;
          &lt;img src="../../assets/img/logo.png" alt="DoggyDOG" /&gt;
      &lt;/div&gt;
      &lt;form id="login-form1"&gt;
          &lt;ion-item id="login-input3"&gt;
              &lt;ion-input type="text" placeholder="Username" name="username"&gt;&lt;/ion-input&gt;
          &lt;/ion-item&gt;
          &lt;div class="spacer" style="width:30px;height:11px;" id="login-spacer3"&gt;&lt;/div&gt;
          &lt;ion-item id="login-input2"&gt;
              &lt;ion-input type="password" placehol3er="Password" name="password"&gt;&lt;/ion-input&gt;
          &lt;/ion-item&gt;
          &lt;div class="spacer" style="height:10px;" id="login-spacer2"&gt;&lt;/div&gt;
          &lt;button id="login-button1" ion-button outline color="energized" block icon-left style="font-weight:500;color:#ffffff;"&gt;
              &lt;ion-icon ios="ios-log-in" md="md-log-in"&gt;&lt;/ion-icon&gt;      
              Login
           &lt;/button&gt;
          &lt;div class="spacer" style="height:50px;" id="login-spacer3"&gt;&lt;/div&gt;
          &lt;button id="login-button2" ion-button block color="light" icon-left style="color:#3A539B;"&gt;
           &lt;ion-icon left ios="logo-facebook" md="logo-facebook"&gt;&lt;/ion-icon&gt;
          Facebook
          &lt;/button&gt;
          &lt;button id="login-button3" ion-button block color="googlebtn" icon-right style="color:#ffffff;"&gt;  
           &lt;ion-icon ios="logo-google" md="logo-google"&gt;&lt;/ion-icon&gt;
          Google
          &lt;/button&gt;
      &lt;/form&gt;
  
  &lt;/ion-content&gt;
  </code></pre>