title: Starting Android SDK Manager in Eclipse throw a Exception
body: <p>When i try to start the Android SDK Manager in Eclipse (and also Console) i get this Exception</p>
  
  <pre><code>[2013-01-19 22:43:47 - SDK Manager] [SDK Manager] Exception in thread "main" java.lang.NoClassDefFoundError: com/android/archquery/Main
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager] Caused by: java.lang.ClassNotFoundException: com.android.archquery.Main
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.security.AccessController.doPrivileged(Native Method)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager] Exception in thread "main" java.lang.NoClassDefFoundError: com/android/archquery/Main
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager] Caused by: java.lang.ClassNotFoundException: com.android.archquery.Main
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.security.AccessController.doPrivileged(Native Method)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
  [2013-01-19 22:43:47 - SDK Manager] [SDK Manager]   at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager] Exception in thread "Thread-1" java.lang.NoClassDefFoundError: com/android/sdkmanager/Main
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager] Caused by: java.lang.ClassNotFoundException: com.android.sdkmanager.Main
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager]   at java.net.URLClassLoader$1.run(URLClassLoader.java:202)
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager]   at java.security.AccessController.doPrivileged(Native Method)
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager]   at java.net.URLClassLoader.findClass(URLClassLoader.java:190)
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager]   at java.lang.ClassLoader.loadClass(ClassLoader.java:306)
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager]   at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:301)
  [2013-01-19 22:43:48 - SDK Manager] [SDK Manager]   at java.lang.ClassLoader.loadClass(ClassLoader.java:247)
  </code></pre>
  
  <p>I don't know what caused it but reinstalling of Eclipse and the adt Plugin and the download a new Version of the SDK couldn't solve the Problem.
  Any ideas?</p>