title: I created a custom theme, deleted it and then can't delete it from AndroidManifest.xml
body: <p>So I tried to create a custom theme to my preference_category file, but then decided to delete it. I deleted a theme from styles.xml and the string from AndroidManifest.xml. When I build the project, it is always coming back "from the dead". And every time I delete it, it is recovering. And the string android:theme="@style/Theme.Custom" like was never deleted! The error i got is</p>
  
  <blockquote>
    <p>Error:(51, 28) No resource found that matches the given name (at 'theme' with value '@style/Theme.Custom').
    Error:Execution failed for task ':app:processDebugResources'.
    com.android.ide.common.process.ProcessException: org.gradle.process.internal.ExecException: Process 'command '/Users/lisa/Library/Android/sdk/build-tools/22.0.1/aapt'' finished with non-zero exit value 1
    Information:BUILD FAILED</p>
  </blockquote>
  
  <p>And not only this happens. My ManifestFile:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
  package="com.example.tenderplan"
  android:versionCode="1"
  android:versionName="1.0" &gt;
  
  &lt;uses-sdk
      android:minSdkVersion="14"
      android:targetSdkVersion="23" /&gt;
  &lt;uses-permission android:name="android.permission.GET_ACCOUNTS" /&gt;
  &lt;uses-permission android:name="android.permission.READ_PROFILE" /&gt;
  &lt;uses-permission android:name="android.permission.READ_CONTACTS" /&gt;
  &lt;uses-permission android:name="android.permission.INTERNET" /&gt;
  &lt;uses-permission        android:name="android.permission.ACCESS_NETWORK_STATE" /&gt;
  &lt;uses-permission android:name="android.permission.CALL_PHONE" /&gt;
  
  &lt;supports-screens
      android:anyDensity="true"
      android:largeScreens="true"
      android:normalScreens="true"
      android:smallScreens="true"
      android:xlargeScreens="true" /&gt;
  
  &lt;application
      android:allowBackup="true"
      android:icon="@drawable/notif"
      android:label="Tenderplan"
      android:supportsRtl="true"
      android:theme="@style/AppTheme" &gt;
      &lt;activity
          android:name="com.example.tenderplan.activities.MainActivity"
          android:label="Tenderplan"
          android:theme="@style/AppTheme.NoActionBar" &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="com.example.tenderplan.activities.LoginActivity"
          android:theme="@style/AppTheme" /&gt;
      &lt;activity
          android:name="com.example.tenderplan.activities.ElementActivity"
          android:theme="@style/AppTheme" /&gt;
      &lt;activity
          android:name="com.example.tenderplan.activities.SettingsActivity"
          android:label="@string/title_activity_settings"
          android:theme="@style/Theme.Custom" /&gt;
      &lt;activity android:name="com.example.tenderplan.activities.EditActivity" /&gt;
      &lt;activity android:name="com.example.tenderplan.activities.AddKeyActivity" /&gt;
      &lt;activity android:name="com.example.tenderplan.activities.AnalyticsActivity" /&gt;
      &lt;activity android:name="com.example.tenderplan.activities.AnalyticsCPActivity" /&gt;
  &lt;/application&gt;
  </code></pre>
  
  <p></p>
  
  <p>In Manifest these strings are in red color:</p>
  
  <ol>
  <li><code>http://schemas.android.com/apk/res/android"</code></li>
  <li><code>android:versionCode="1" android:versionName="1.0" &gt;</code></li>
  <li>supports-screens</li>
  <li><code>android:allowBackup="true"
      android:icon="@drawable/notif"</code></li>
  <li><code>android:theme="@style/AppTheme"</code>
  and many others with themes.</li>
  </ol>
  
  <p>This is my styles.xml:</p>
  
  <pre><code>&lt;resources&gt;
  
  &lt;!-- Base application theme. --&gt;
  &lt;style name="AppTheme" parent="Theme.AppCompat.Light.DarkActionBar"&gt;
      &lt;!-- Customize your theme here. --&gt;
      &lt;item name="colorPrimary"&gt;@color/colorPrimary&lt;/item&gt;
      &lt;item name="colorPrimaryDark"&gt;@color/colorPrimaryDark&lt;/item&gt;
      &lt;item name="colorAccent"&gt;@color/colorAccent&lt;/item&gt;
  &lt;/style&gt;
  
  &lt;style name="AppTheme.NoActionBar"&gt;
      &lt;item name="windowActionBar"&gt;false&lt;/item&gt;
      &lt;item name="windowNoTitle"&gt;true&lt;/item&gt;
  &lt;/style&gt;
  
  &lt;style name="AppTheme.AppBarOverlay"
      parent="ThemeOverlay.AppCompat.Dark.ActionBar" /&gt;
  
  &lt;style name="AppTheme.PopupOverlay"
      parent="ThemeOverlay.AppCompat.Light" /&gt;
  </code></pre>
  
  <p></p>
  
  <p>Also,my <code>import com.example.tenderplan.R;</code> can't be found in activities.</p>
  
  <p>Could you help me find the right answer? </p>