Cannot connect Nexus One Phone to Android adb

Question

I am running Android SDK 2.2 and am trying to get the adb to connect to the Google Nexus One phone. Its a new phone, shipped straight from Google - haven't installed any apps on it yet. (I have Windows XP) Here is what I have done so far:

• Followed the instructions on setting up the device for development as given on the Android Developer's site: http://developer.android.com/guide/developing/device.html

• added android:debuggable="true" to my application manifest

• USB debuggable is checked on the phone

• downloaded the Device Drivers For Windows Revision 3 (this supports Nexus One phones)

• Went through the Hardware Installation wizard to install the device - the device shows up as "Android Composite ADB Interface".

When I run adb devices on the shell, the device appears for a moment, then disappears. On the Eclipse console, I get the following message: [2010-11-13 11:54:42 - DeviceMonitor]Failed to start monitoring

I have rebooted the pc several times, uninstalled and reinstalled the drivers several times, but I get the same error each time. As I was researching this problem, someone had recommended rebooting the phone. I am a bit confused by that - is that a soft or hard reboot? Do I just power the phone off/on and is there something more complex involved? Do I have to hard reboot it to reset to factory version - even though its brand new?

Has anyone run into a similar problem? Any help on this would be great. I can't test my application on the device if the adb cannot view the device. Thanks so much in advance.

Answer 1

I had this same problem. To get it working, do the following:

1. Close Eclipse
2. Open Task Manager and kill the adb.exe program.
3. Re-open Eclipse (Eclipse will automatically restart the adb.exe service)

Run adb devices from a command prompt and you should see something like the following:

C:\> adb devices
List of devices attached
0123456789ABCDEF        device

Of course, I'm assuming you have your phone plugged into your computer.