title: No resource found that matches the given name (at 'theme' with value '@style/Theme.Intro') when including material-intro in my project
body: <p>I wanted to add an intro wizard for my app (when you first use it).
  I used this library as the source: <a href="https://github.com/HeinrichReimer/material-intro" rel="nofollow">https://github.com/HeinrichReimer/material-intro</a>
  So basically what I did was copying his library folder to my project root location and after building the project I get the following error:</p>
  
  <pre><code>No resource found that matches the given name (at 'theme' with value '@style/Theme.Intro').
  </code></pre>
  
  <p>More detailed error log:</p>
  
  <pre><code>C:\Users\abhishek rai\AndroidStudioProjects\DonationApp\app\build\intermediates\manifests\full\debug\AndroidManifest.xml
  Error:(30, 28) No resource found that matches the given name (at 'theme' with value '@style/Theme.Intro').
  Error:Execution failed for task ':app:processDebugResources'.
  &gt; com.android.ide.common.process.ProcessException:  org.gradle.process.internal.ExecException: Process 'command 'C:\Users\abhishek  rai\AppData\Local\Android\sdk\build-tools\23.0.2\aapt.exe'' finished with non-zero exit value 1
  </code></pre>
  
  <p>The code in <em>AndroidManifest.xml</em> is:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="minor.da.com.donationapp"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  &lt;uses-sdk
      android:minSdkVersion="19"
      android:targetSdkVersion="23" /&gt;
  
  &lt;uses-permission android:name="android.permission.CAMERA" /&gt;
  &lt;uses-permission android:name="android.permission.WRITE_EXTERNAL_STORAGE" /&gt;
  
  &lt;application
      android:allowBackup="true"
      android:icon="@mipmap/ic_launcher"
      android:label="@string/app_name"
      android:supportsRtl="true"
      android:theme="@style/AppTheme" &gt;
      &lt;activity android:name="minor.da.com.donationapp.MainActivity" &gt;
          &lt;intent-filter&gt;
              &lt;action android:name="android.intent.action.MAIN" /&gt;
  
              &lt;category android:name="android.intent.category.LAUNCHER" /&gt;
          &lt;/intent-filter&gt;
      &lt;/activity&gt;
      &lt;activity
          android:name="minor.da.com.donationapp.MaterialIntroActivity"
          android:parentActivityName="minor.da.com.donationapp.MainActivity"
          android:theme="@style/Theme.Intro" &gt;
          &lt;meta-data
              android:name="android.support.PARENT_ACTIVITY"
              android:value=".MainActivity" /&gt;
      &lt;/activity&gt;
      &lt;activity android:name="minor.da.com.donationapp.FinishActivity" &gt;
      &lt;/activity&gt;
      &lt;activity
          android:name="minor.da.com.donationapp.Front_page"
          android:label="@string/app_name" &gt;
      &lt;/activity&gt;
      &lt;activity android:name="minor.da.com.donationapp.SecondPage" /&gt;
      &lt;activity
          android:name="android.support.v7.widget.TestActivity"
          android:label="RecyclerViewTestActivity" /&gt;
  &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>