Using Eclipse for androidSDK, when I go to run, I get WARNING: Data partition already in use. Changes will not persist!

Question

I am completely new to Java, and Android, and eclipse. When doing the initial Hello, Android tutorial, I go to run and get the following:

WARNING: Data partition already in use. Changes will not persist!
WARNING: Cache partition already in use. Changes will not persist!

Answer 1

Goto DDMS perspective, click on the down arrow next to the screen capture camera icon and select reset adb from the dropdown menu.

My apk file was not deploying either, resetting adb sorted it out. :)

Answer 2

Even easier fix: In Windows open command prompt (cmd.exe). In Linux open Terminal. Locate adb.exe in SDK folder ..\android-sdk\platform-tools\abd.exe

cd <sdk directory> (move to the folder listed above)
dir (to make sure abd.exe is in that directory)
adb kill-server (stop the abd service, won't return anything)
adb start-server (start the abd service back up, should give a couple of readings)

Then retest, problem solved!