Eclipse does not communicate (install) HelloWorld app

I've this problem with Eclipse. When I debug my application, it gives me this info:

[2011-07-16 13:39:50 - TestAndroidProject]

[2011-07-16 13:39:50 - TestAndroidProject] Android Launch!

[2011-07-16 13:39:50 - TestAndroidProject] adb is running normally. [2011-07-16 13:39:50 - TestAndroidProject] Performing nl.Diamondo25.TestAndroidProjectActivity activity launch

[2011-07-16 13:39:50 - TestAndroidProject] Automatic Target Mode: Preferred AVD 'derp_test' is not available. Launching new emulator.

[2011-07-16 13:39:50 - TestAndroidProject] Launching a new emulator with Virtual Device 'derp_test' [2011-07-16 13:40:47 - Emulator] emulator: em开发者_JS百科ulator window was out of view and was recentred [2011-07-16 13:40:47 - Emulator]

The Emulator launches, but there is no app installed...

Anyone has an idea why?

Try this. Delete all the emulators. Restart Eclipse. Create a new emulator and try again.

If the code is correct, all software, SDK, plugins etc. are available and Eclipse configured the correct way, I don't see why it shouldn't work