title: no resource found that matches the given name
body: <p>This:</p>
  
  <pre><code>&lt;?xml version="1.0" encoding="utf-8"?&gt;
  &lt;manifest xmlns:android="http://schemas.android.com/apk/res/android"
    package="de.androidbuch.rechner"
    android:versionCode="1"
    android:versionName="1.0"&gt;
  
    &lt;uses-sdk android:minSdkVersion="7"&gt;&lt;/uses-sdk&gt;
  &lt;application android:icon="@drawable/icon" android:label="@string/app_name"
  android:theme="@android:style/Theme.Light"&gt;
  
      &lt;activity android:name=".FormularActivity"
          android:label="@string/app_name"&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;
  </code></pre>
  
  <p>
      
   </p>
  
  <p>is my <code>AndroidManifest.xml</code> and in lines 8 &amp; 11 I get the error:</p>
  
  <blockquote>
    <p>no resource found that matches the
    given name(at "label" with value
    "@string/app_name")</p>
    
    <p>no resource found that matches the
    given name(at "label" with value
    "@string/app_name")</p>
  </blockquote>
  
  <p>This is really strange and I did not move the values Folder anywhere.</p>