How to use sdk samples

[forsubhi]

I downloaded sdk samples and put them in the sdk folder then I opened new project from sample and chose APIdemos and when I click run as android application I receive error

[2011-11-15 01:25:59 - apidemos] Re-installation failed due to different application signatures.
[2011-11-15 01:25:59 - apidemos] You must perform a full uninstall of the application. WARNING: This will remove the application data!
[2011-11-15 01:25:59 - apidemos] Please execute 'adb uninstall com.example.android.apis' in a shell.
[2011-11-15 01:25:59 - apidemos] Launch canceled!

I want to lunch voice recognition.java


please help me !

 

[forsubhi]

I found the APIdemos folder in my Emulator and there is no problem