title: getting error while build android project in android studio
body: <pre>
  Error:(210) Attribute "background" already defined with incompatible format.
  Error:(64) Original attribute defined here.
  Error:(237) Attribute "navigationMode" already defined with incompatible format.
  Error:(210) Original attribute defined here.
  Error:(210) Original attribute defined here.
  Error:(237) Attribute "displayOptions" already defined with incompatible format.
  Error:(246) Attribute "actionBarSize" already defined with incompatible format.
  Error:(220) Original attribute defined here.
  Error:(246) Attribute "windowMinWidthMajor" already defined with incompatible format.
  Error:(220) Original attribute defined here.
  Error:(246) Attribute "windowMinWidthMinor" already defined with incompatible format.
  Error:(220) Original attribute defined here.
  Error:Execution failed for task ':app:processDebugResources'.
  > com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/home/gumbi/Android/Sdk/build-tools/24.0.0/aapt'' finished with non-zero exit value 1
  </pre>
  
  <p>for example  Error:(237) Attribute "displayOptions" already defined with incompatible format.
  is coming in line :</p>
  
  <pre><code>   &lt;declare-styleable name="SherlockActionBar"&gt;
      &lt;attr name="navigationMode"&gt;
          &lt;enum name="normal" value="0"/&gt;
          &lt;enum name="listMode" value="1"/&gt;
          &lt;enum name="tabMode" value="2"/&gt;
      &lt;/attr&gt;
      &lt;attr name="displayOptions"&gt;
          &lt;flag name="useLogo" value="0x1"/&gt;
          &lt;flag name="showHome" value="0x2"/&gt;
          &lt;flag name="homeAsUp" value="0x4"/&gt;
          &lt;flag name="showTitle" value="0x8"/&gt;
          &lt;flag name="showCustom" value="0x10"/&gt;
          &lt;flag name="disableHome" value="0x20"/&gt;
      &lt;/attr&gt;
      &lt;attr name="title" format="string"/&gt;
      &lt;attr name="subtitle" format="string"/&gt;
      &lt;attr name="titleTextStyle"/&gt;
      &lt;attr name="subtitleTextStyle"/&gt;
      &lt;attr name="icon" format="reference"/&gt;
      &lt;attr name="logo" format="reference"/&gt;
      &lt;attr name="divider"/&gt;
      &lt;attr name="background"/&gt;
      &lt;attr name="backgroundStacked" format="reference|color"/&gt;
      &lt;attr name="backgroundSplit"/&gt;
      &lt;attr name="customNavigationLayout" format="reference"/&gt;
      &lt;attr name="height"/&gt;
      &lt;attr name="homeLayout" format="reference"/&gt;
      &lt;attr name="progressBarStyle" format="reference"/&gt;
      &lt;attr name="indeterminateProgressStyle" format="reference"/&gt;
      &lt;attr name="progressBarPadding" format="dimension"/&gt;
      &lt;attr name="itemPadding" format="dimension"/&gt;
  &lt;/declare-styleable&gt;
  </code></pre>