title: Android Java Emulator . . WARNING: Data partition already in use. Changes will not persist
body: <p>I am trying to run an Android project in Eclipse(Android 2.3.3, on a Windows 7 64-bit machine), but I run in to the following error (on console window). This worked a couple of hours ago but now does not and I don't think I changed anything major. Would appreciate any help I can to fix this issue please</p>
  
  <pre><code>[2012-09-02 17:38:33 - mapviewballoons.Main] Starting incremental Pre Compiler: Checking resource changes.
  [2012-09-02 17:38:33 - mapviewballoons.Main] Nothing to pre compile!
  [2012-09-02 17:38:33 - samplemap] Refreshing resource folders.
  [2012-09-02 17:38:35 - Emulator] WARNING: Data partition already in use. Changes will not persist!
  [2012-09-02 17:38:35 - Emulator] WARNING: SD Card image already in use: C:\Users\MACHINEOVA\.android\avd\MAPAPP1.avd/sdcard.img
  [2012-09-02 17:38:35 - Emulator] WARNING: Cache partition already in use. Changes will not persist!
  </code></pre>