ADB and Genymotion error: "adb server is out of date. killing... cannot bind 'tcp:5037' ADB server didn't ACK"

Question

Trying to use adb shell from terminal after starting genymotion emulator and I get this error:

adb server is out of date.  killing...
cannot bind 'tcp:5037'
ADB server didn't ACK
* failed to start daemon *
error:

I read in this answer on stackoverflow to run this command killall -9 adbso I did and then it says to change genymotion settings to use custom Android SDK tools as the following:

Also did that as you can see in the above screenshot but I still keep getting the same error message.

My android Studio ADB logs give the following message whenever I try to run adb shell:

 DeviceMonitor: Adb connection Error:EOF
 DeviceMonitor: Connection attempts: 1

I even tried creating a new virtual device and using it without any success.

Answer 1

update the adb to 1.0.32 if you have 1.0.31 or lower

adb version
Android Debug Bridge version 1.0.31
wget -O - https://skia.googlesource.com/skia/+archive/cd048d18e0b81338c1a04b9749a00444597df394/platform_tools/android/bin/linux.tar.gz | tar -zxvf - adb
sudo mv adb /usr/bin/adb
sudo chmod +x /usr/bin/adb
adb version
Android Debug Bridge version 1.0.32