After several installs and fails, it's looking like the Intel HAXM doesn't want to install. I'm running OSX 10.10.5.
Can someone tell me what downside there is to not having HAXM?
The downside to having no HAXM is your emulator will most likely be incredibly slow. You could try using a real device, or see if you have better luck with the Genymotion emulator.
I had the same thing on High Sierra. I downloaded the installer from the intel site (google it, I can't post links..)
During installation a message appeared that a system extension was blocked. After enabling it using Security and privicy in the Systemsettings it worked fine.
If you are running Parallels on your Mac, then HAXM won't work.
Xamarin Inc., as a wholly-owned Microsoft subsidiary acting as a separate legal entity, adheres to the Microsoft Privacy Statement: Privacy & cookies