plug in your phone , make sure eclipse is running
go to the folder where you installed the sdk
go to platform-tools folder
hold shift and right click on any empty space, then chose "open command window here"
type this "adb remount" it should give you remount successfully
if that didn't work , your computer didn't recognize your phone
it'd be more helpful if you mentioned which device you have and which OS you are using
[I assumed you are using windows, it also differs if you are using 64bit or 32bit versions]
Hi, I know this is an old thread, but I'm having pretty much the same problem and didn't see a need to create a new thread.
I've been having a horrible time trying to simply get started in learning how to develop my own apps. I began by
downloading the eclipse ADT bundle here. Initially I failed to follow the setup instructions properly, and ultimately could not run the "My First App" app on my device or an emulator when I tried. I then started over and went back and fixed my errors and problems with the setup, but I still cannot run the app. I am using Windows 7 64 bit, and my device is an HTC Evo 3D 4G from Virgin Mobile with Android 4.0.3.
Attempting to run the app resulted in this feedback from the Eclipse console:
[2013-04-08 10:37:24 - MyAndroidApp] Android Launch!
[2013-04-08 10:37:24 - MyAndroidApp] adb is running normally.
[2013-04-08 10:37:25 - MyAndroidApp] Performing com.example.myandroidapp.MainActivity activity launch
[2013-04-08 10:37:25 - MyAndroidApp] Failed to find an AVD compatible with target 'Android 4.2.2'.
[2013-04-08 10:37:28 - MyAndroidApp] Performing com.example.myandroidapp.MainActivity activity launch
[2013-04-08 10:37:30 - MyAndroidApp] Launch canceled!
I took this to imply that maybe eclipse was looking for an android 4.2 device (which didn't make a great deal of sense because I thought that the target was only supposed to be the highest supported version). So I deleted the project and recreated, changing the target to 4.0.3 to match my device. The same issue occurred.
I then attempted the advice of the two above posts, starting with the "adb remount" suggestion. This was the feeback I was given:
* daemonn not running. starting it now on port 5073 *
* daemon started successfully *
error: devise not found
I then attempted to disable and enable debugging mode. App still would not run. Reattempted the adb remount, and was given "device not found" again.
One note: This is a new phone, and my old phone was an LG Optimus runing Froyo. I notice on my new device plugging in the USB cable results in a prompt to choose a connection type (charge only vs disk drive). I'm not accustomed to this option as my Optimus did not distinguish between the two. (I don't know if this is prompt is an HTC thing or an ICS thing.) My assumption was that I needed to select the "disk drive" option, however I've repeated my attempts with "charge only" selected, and have not had any success with that either.
One final note, I've also tried to create virtual devices to see if I can at least get the app to run, and that has been useless. Either eclipse freezes when I create the virtual device, or when I try to turn the boot the virtual device, it never boots (I let it sit for an hour, and the boot process was stuck on the android screen still). I don't know if there's anything in that that offers relevant information at the moment.
Thanks in advance for any help.