I recently got a Macbook Pro. I had an old Macbook and developed Android apps on there with no problem. I have a Samsung Galaxy S2. I have installed the Android SDK and Eclipse along with the ADT plugin. Whenever I connect my device, it says “USB Debugging Enabled” in Android (v4.0.1), but when I run android-sdk/platform-tools/adb devices I get the output 0123456789ABCDEF Offline. When I unplug my phone and run this, it shows nothing.
I found this thread: Why is Eclipse and ADB not recognizing my Android Device?
but it is for Linux. I tried the “Second” steps in the answer from that thread to no avail. Does anyone know why my phone is showing up like this in adb?
edit: I just plugged in an old Droid 2 Global and adb connects fine. Must just be my GS2.
It turned out to by the ROM I was using (CM9). I upgraded to CM10 and it works now.