ADB error: cannot connect to daemon

Question

I need help to get ADB working on my PC (win7 64bit) with the Samsung Galaxy S2.

I have installed the drivers coming along Kies, I think under sub folder \"25_escape

Answer 1

I've finally solved a very similar issue!

In my case, the problem was that I had two different SDKs (one from Eclipse and the other from Android Studio), so I was trying to execute the ADB commands in the wrong one.

So it is important that you check the path you are using in your IDE and execute the commands on the same.