title: Cannot resolve symbol 'ButterKnife'
body: <p>i am trying to use butterknife . but i got error "<strong>Cannot resolve symbol '**ButterKnife</strong>'" .
  i have tried to import butterknife.ButterKnife manually but i got the same error 
  and i have modified gradle and added those lines : 
  at project level ...</p>
  
  <pre><code>dependencies {
                classpath 'com.neenbedankt.gradle.plugins:android-apt:1.8'
               }
  </code></pre>
  
  <p>at the module level ...</p>
  
  <pre><code>apply plugin: 'com.android.application' 
  apply plugin: 'android-apt'
  
  dependencies { 
  
     compile 'com.jakewharton:butterknife-compiler:8.5.1'
     apt 'com.jakewharton:butterknife-compiler:8.5.1' 
  
  }
  </code></pre>
  
  <p>what shall i do ? 
  thanks in advance .
  here is a screenshot of my code where i got the error 
  <a href="https://i.stack.imgur.com/zqGsW.png" rel="nofollow noreferrer">link for the screenshot</a></p>