I got this annoying issue. Every other posts are discussing haxm, but in my case, it works fine. I also tried to reduce RAM of AVD(1024M, 512M, 256M). Just cannot got AVDs work.
I got these messages when I attempt to launch an AVD.
emulator: WARNING: Increasing RAM size to 1GB
emulator: device fd:604
HAXM is working and emulator runs in fast virt mode
Cannot set up guest memory 'pc.ram': Invalid argument