Apps Problems Running my First App

[JB_User]

Hi. I'm a new user trying to follow the instructions for building my first Android app at this URL: Running Your App | Android Developers In the section: Run on a Real Device, here's my status:

• I'm on a Linux PC.
• I did enable USB debugging on my Samsung smartphone.
• I connected the USB cable.

When I click the 'Run' icon in Eclipse, it displays an 'Android Device Chooser' window and lists one device. But the Serial Number for that device is listed as ???????. The Target is listed as 'unknown'. It doesn't allow me to run my HelloWorld program.

How should I proceed?

 

[JB_User]

More details. My Android device is a Samsung Galaxy Player. When I try to run 'My First App' on it via Eclipse, I see this error message in the Console window:

Automatic Target Mode: Unable to detect device compatibility. Please select a target device.

What does this mean? Is my device not supported?