I'm using ubuntu 16.10. When I start my emulator from android studio I got this error:
"ADB reject shell command (cat/proc/3655/stat):closed"
And its not opening. But I can run emulator from command line by following command:
"LD_PRELOAD='/usr/lib/x86_64-linux-gnu/libstdc++.so.6' ~/Android/Sdk/tools/emulator -netdelay none -netspeed full -avd Nexus_5X_API_25"
And it shows the warning message:
"emulator: WARNING: encryption is off"