Android 4.2.2 ADB offline problem

If you use adb.exe version 1.0.29, you can see the following "offline" message.

C:\Program Files (x86)\Android\android-sdk\platform-tools>adb devices
* daemon not running. starting it now on port 5037 *
* daemon started successfully *
List of devices attached
4300570f30ef4071        offline


If you use adb.exe version 1.0.31, you can make it after accepting RSA key of PC in phone screen.

C:\Program Files (x86)\Android\android-sdk\platform-tools>adb devices
List of devices attached
4300570f30ef4071        device


You can get adb.exe 1.0.31 by using "SDK Manager.exe" of Android SDK.