Hi, Pharo 4 might be hard on MacOS Sierra. There was a late change to the VM, at least for Squeak, to stop the black screen on startup on Sierra. Pharo 4 was before that change, and, for that matter, before Sierra. Pharo 5 was after and clearly has that change. I'm pretty sure that the patches are one of these two: [https://github.com/OpenSmalltalk/opensmalltalk-vm/...](https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/70ada3a6e4983891a5dae08f04169fd661a74913) [https://github.com/OpenSmalltalk/opensmalltalk-vm/...](https://github.com/OpenSmalltalk/opensmalltalk-vm/commit/f2b5cf27f81e50c65537972a89ddee9e0aac39c2) and I'm almost 100% sure that the second is the magic one. The simple solution would be to replace the VM in the Pharo 4 bundle with the VM in the Pharo 5 bundle, but, alas, the VM in the Pharo 5 bundle can't read the image from Pharo 4. So it would look as if one's choices are: * Build the version of the VM from the Pharo 4 bundle, but, apply one or both of the patches above. * Figure out why Pharo 4 is necessary and move to Pharo 5. * Run a squeak V3 VM and hack something together. This might not give the full Pharo experience. To run the squeak V3 do the following: Download and unzip the newest Squeak V3 VM. [https://bintray.com/opensmalltalk/vm/download_file...](https://bintray.com/opensmalltalk/vm/download_file?file_path=cog_macos32x86_squeak.cog.v3_201701140950.tar.gz) Alt click on the CocoaFast app and choose open. Quit. Download Pharo 4. Alt click on Pharo 4 and choose "Show Package Contents." Navigate to Contents -> Resources. Drag the "Pharo4.0.image" overtop the CocoaFast app and it launches. You do have startup errors, so, you now have some time to play around. I realize that neither look so easy, though the second one is probably the wisest just because the Pharo group moves quickly. cheers bruce I don't know yet Jeff. I don't have either a macos sierra at hand. Once a Mac OS Sierra user reported me the problem your are mentioning[1], but I did not get very far investigating the problem.
For me it is not clear at all from[2] if there is any Mac VM 4.0. May be Esteban can enlighten us. [1] http://forum.drgeo.eu/DrGeo-pb-mac-os-Sierra-td402... [2] http://pharo.org/download Le 14/01/2017 à 11:35, J.F. Rick a écrit : > So, what's the proper procedure? I just moved my Pharo4 to the > Application directory and it didn't work? Launched but the window is > black. Is there a new Pharo4 VM for MacOS? If so, where is it? > > Thanks, > > Jeff -- Dr. Geo http://drgeo.eu
