Debugging unity application on Nexus 4

Hey can anyone tell me how do debug my application on nexus 4 using USB debugging.

Unity remote will let you test touch functions inside the editor without generating a build. Just make sure you have debugging turned on and have your Android SDK setup in unity.

Have you followed all the steps at Unity - Manual: Android environment setup ?

Export to eclipse and enable logcat. It will show debug messages and will show errors that dont always show in editor console.

Done… rather than exporting i just build and run the application with script Debugging enabled…With this the app gets installed on the device and i can check the logcat …

check this tool