Well, I have a VM that identifies itself thusly:

Virtual Machine
---------------
/private/var/folders/j8/srqlyptj11v01rspqj9h_0g00000gq/T/AppTranslocation/199715EF-054C-45AC-9BD4-BBC69FB10DA9/d/Squeak may2017.app/Contents/MacOS/Squeak
Croquet Closure Cog[Spur] VM [CoInterpreterPrimitives VMMaker.oscog-eem.2213]
Mac OS X built on May 16 2017 23:29:55 UTC Compiler: 4.2.1 Compatible Apple LLVM 6.1.0 (clang-602.0.53)
platform sources revision VM: 201705162217 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $ Date: Tue May 16 15:17:10 2017 -0700 $ Plugins: 201705162217 https://github.com/OpenSmalltalk/opensmalltalk-vm.git $
CoInterpreter VMMaker.oscog-eem.2213 uuid: 91a750c2-5478-49d7-9c19-26ddc976ddb1 May 16 2017
StackToRegisterMappingCogit VMMaker.oscog-eem.2213 uuid: 91a750c2-5478-49d7-9c19-26ddc976ddb1 May 16 2017

If I drop a 5.1 image on this VM, it works (at least a few that I just tried). If I drop a 4.2 or 4.5 image on the same VM, nothing happens. I have tried looking at the console log to see if something shows there and the first thing that appears after dropping the image is usually a line like:

default    09:37:32.421780 -0400    Squeak    Connection to sharingd became invalid

This appears for both 5.x and 4.x images, but for a 5.x image there are a ton of messages to follow and for a 4.x image, that's about all that appears. So, I'm not clear how to proceed.

Hi Bob

On 29.07.2017, at 19:03, Bob Arning <arning315@comcast.net> wrote:

Since I upgraded to MacOS 10.12, I've had a devil of a time finding a VM that will reliably run various images I have lying around. Can someone point me to a good one?

To triage a bit, can you outline the "various images"? What are they like?

Best regards
	-Tobias