Android studio on Mac cannot detect connected USB phone

Constant issue with being able to connect an Android device via USB to Android Studio running on a Mac.

Tried numerous things like:

Switching USB debugging mode on Android to MTP or PTP
Restarting the Android devices and Android Studio and/or Mac
trying adb kill-serverand then adb devices, which usually resulted in:

List of devices attached

daemon not running. starting it now on port 5037

adb E 655 23135 usb_osx.cpp:327] Could not open interface: e00002c5

adb E 655 23135 usb_osx.cpp:289] Could not find device interface

daemon started successfully

But not actually finding the connected device.

Solution

There are some great responses that worked for others, like this one or this one which seemed to work for others.

In my case, the issue was Tizen Studio (I was working on a watch app for Samsung Gear). Through this poster's research, found that the adb error could not open interface: e00002c5 implies that the usb device is already in use by some other driver.

So it seems Tizen Studio takes up the usb driver resource even though it is not using it. Quitting the application will automatically allow adb devices to list your device and run the project on it.

Hope this helps other lost souls.