I am trying to sign an Android Application and run into my BlackBerry 10 Device. I installed the BlackBerry Plug-in for Android Development Tools and BlackBerry Tools SDK in Eclipse 3.7. Now I am trying to register with the RDK and PBDT keys after clicking the Register Button in the Bar Signer Window( In Eclipse, Preferences ->BlackBerry-> BlackBerry Tools SDK--> Bar Signer). After giving the path for the keys and password, it is registering the key and one mail i got saying the key is successfully registered.
Now when i trying to create the Developer Certificate, after giving the keystore password and author name, it is giving the error

In the targets of the Eclipse(Preferences ->BlackBerry-> BlackBerry Tools SDK--> Targets), My BB 10 device is showing. It means my device is recognized by the eclipse.
Now I am really confused, how to generate the debug token and or developer certificate although my device's Development Mode is ON. It will be great help if anyone tell me the solution..