title: R.java is not generating neither with eclipse nor with Android Studio
body: <p>I am having trouble with the development of my app, I can't go on because R.java is not generating.
  I tried everything I could find of advice on Stack Overflow but couldn't find anything that worked. The problem not only occurs in Eclipse but also in Android Studio. I checked all my xml files but couldn't find something that should stop the generating of R.java.
  This is the content of my Manifest.xml:</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.thenewprogramming.android.timetoswim"
      android:versionCode="1"
      android:versionName="1.0" &gt;
  
      &lt;uses-sdk
          android:minSdkVersion="17"
          android:targetSdkVersion="17" /&gt;
  
      &lt;application
          android:allowBackup="true"
          android:icon="@drawable/ic_launcher"
          android:label="@string/app_name"
          android:theme="@style/AppTheme"&gt;
  
          &lt;activity
              android:name="com.thenewprogramming.android.timetoswim.HomeActivity"
              android:label="@string/app_name" 
              android:screenOrientation="sensorPortrait" &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.thenewprogramming.android.timetoswim.AddMatchActivity"
              android:label="@string/AddMatchActivity_ActivityTitle"  
              android:screenOrientation="sensor" &gt;
  
              &lt;intent-filter &gt;
                &lt;category android:name="android.intent.category.DEFAULT"/&gt;
              &lt;/intent-filter&gt;
  
          &lt;/activity&gt;
  
          &lt;activity
              android:name="com.thenewprogramming.android.timetoswim.SettingsActivity"
              android:label="@string/SettingsActivity_ActivityTitle" 
              android:screenOrientation="sensorPortrait"&gt;
  
              &lt;intent-filter &gt;
                  &lt;category android:name="android.intent.category.DEFAULT"/&gt;
              &lt;/intent-filter&gt;
  
          &lt;/activity&gt;
  
      &lt;/application&gt;
  
  &lt;/manifest&gt;
  </code></pre>
  
  <p>I tried wiping out all the other xml and that didn't work so I just placed them back.</p>
  
  <p>All help would be very much appreciated. </p>
  
  <p>EDIT:
  Someone else told me immediately that the strings have to begin with a lowercase letter so i did that and it worked! unfortunately he deleted the post but i will mark the question as answered (if i know how to do that...).</p>