title: Variables Cannot contain $ after Android Studio update
body: <p>I've updated my Android Studio to 3.0 version, Android gradle plugin to <code>3.0.0</code> version (<code>com.android.tools.build:gradle:3.0.0</code>), support libraries to 27.0.0 version and <strong>buildTools</strong> to <code>26.0.2</code> at once. </p>
  
  <p>After that updates I get a lot of errors during builds but all of them are linked with symbol variables:</p>
  
  <pre><code>HostsListAdapter.java
  Error:(42, 40) error: cannot find symbol variable i_computer_$rr
  Error:(43, 40) error: cannot find symbol variable i_computer_$iv
  Error:(44, 40) error: cannot find symbol variable i_computer_$tv
  </code></pre>
  
  <p>I didn't change anything in my application since last successful build. What I should do to fix this errors? Of course resources exist, moreover they are visible in code tips while typing.</p>
  
  <p>I've tried few times to clean and rebuild the project or sync gradle with no results.</p>