Android: ERROR: Failed to launch application on device: ERROR: Failed to install apk to device:

I have Android-19 SDK (no ARM).

Attached my Android phone to the laptop. I see errrors while trying to run simple Android app as follows using phonegap commandline:

c:\my-app>phonegap run android

ERROR: Failed to launch application on device: ERROR: Failed to install apk to d
evice: Error: Could not find apk architecture: arm build-type: debug

Am i missing anything? Pls advice.