I am developing an application in android Geocoder.When I run the applicaion its showing
[2011-01-11 11:08:13 - GeoTourProject] Automatic Target Mode: using existing emu
I would suggest you to make some changes in the code (like inserting a space in the .java files in your project) so that project is recompiled & deployed.
If it still throws error 'Application already deployed' then you can uninstall application by using adb uninstall & then install app