title: Getting "Device offline" error even though emulator is running
body: <p>I just installed the android sdk (3.0) on my Mac 10.6.3.  I started the emulator successfully using </p>
  
  <p>./emulator -avd my_android &amp;</p>
  
  <p>However, when I try and run a forward command using adb, I get the following error ...</p>
  
  <p>davea-mbp2:platform-tools davea$ ./adb forward tcp:8080 tcp:8080
  * daemon not running. starting it now on port 5037 *
  * daemon started successfully
  error: device offline</p>
  
  <p>Does anyone know what the error means?  My emulator is up and running (http://screencast.com/t/bD8WYjZ1) when I run the above command, - Dave</p>