How to reboot or switch off Genymotion device?
adb, android, genymotion
Solution
If you have `adb` installed as part of your Linux distribution, then your `PATH` probably points there. Chances are this `adb` is version 1.0.31 (or earlier).
Genymotion comes with its own `adb` in the `tools/` directory, which is version 1.0.32 if you are running the latest Genymotion, currently 2.3.1. Unless you changed it in the settings, Genymotion will start the bridge with that copy.
Since `adb` operates in a client-server arrangement, the client version should match the daemon version. In your case, they don't and that's why you're getting the `adb server is out of date. killing...` message. If the daemon is killed or dies, the Genymotion launcher automatically and immediately restarts `adb` (using its own copy), and that's why your client can't start a new daemon bound to port 5037.
The solution is to make sure that the version of `adb` you are invoking on the command line matches the one that Genymotion is bringing up as a daemon when it starts the VMs. The easiest way to ensure this is just to use the `adb` binary in Genymotion's `tools/` directory.
Note that if you have changed Genymotion's default of using its own tools to use custom SDK tools, then you'll need to use an `adb` client that matches the version contained in the SDK you're pointing to. As far as I can tell, KitKat (4.4.4) and earlier SDKs contain `adb` version 1.0.31, while the Lollipop (5.0) SDKs have 1.0.32.
Problem
I'm following a guide of installing Google Play in a Genymotion VM. The guide says to run `adb reboot`. How do I do that? A comment to the guide asked the same question and someone replied to that: `adb connect 192.168.56.101` followed by `adb -e reboot` . But entering the first command gives me error: ``` adb server is out of date. killing... cannot bind 'tcp:5037' ADB server didn't ACK * failed to start daemon * error: ``` Long pressing power button on the emulator, brings up option inside Android to turn off the device but when I try to turn off the device this way (through Android), the emulator hangs on "Shutting down..." and doesn't turn off the device. Linux Mint 17 ; Genymotion 2.3.1 ; Android 4.4.4