Android adb “Unable to open sync connection!”

Question

I can run and debug my Android app on my phone just fine, most of the time. Then, seemingly randomly, when I try to run or debug my app from Eclipse, the Console in Eclipse

Answer 1

I have been experiencing this problem very often (I mean like every second time I launched Debug). I was using a rather long USB cable. I switched to the original HTC USB cable which is short and the problem was gone!