I recently got into programming as a result of attending a summer camp where we wrote a rudimentary Android app using AppInventor (fantastic program to start programming by the way). Anyway, I decided to dabble in some real programming for Android, and I hit a (minor) hurdle. As I was going through the Android Developer tutorial, I tried to run the app on my phone. Eclipse threw this at me: [HIGH][2013-07-16 02:36:43 - MyFirstApp] Uploading MyFirstApp.apk onto device 'HT26FHX05561' [2013-07-16 02:36:43 - MyFirstApp] Installing MyFirstApp.apk... [2013-07-16 02:36:44 - MyFirstApp] Success! [2013-07-16 02:36:44 - MyFirstApp] Starting activity com.example.myfirstapp.MainActivity on device HT26FHX05561[/HIGH] Looks great right? Except NOTHING happened on my phone. No app popped up, nothing in my app drawer, nothing happened. I have USB Debugging enabled, I've used ADB with this phone and laptop at least a thousand times, and I've even been in fastboot. I'm stumped. Anyone have any idea why Eclipse says everything is okay, but it really isn't?