open app from unidentified developer -- Apple instructions not working

Hi. I'm running MacOS Sierra 10.12.6. I'm trying to open an app from an unidentified developer (Art of Illusion). I found the these instructions from Apple for overriding the "app from unidentified developer" error: macOS Sierra: Open an app from an unidentified developer. Basically it says to right-click the app file in Finder, choose "Open" from the shortcut menu, then click "Open." This is supposed to grant the app an exception. However, when I right-click and choose Open from the shortcut menu, the only choices I get are "Cancel" and "Move App to Trash." (The article also says an "Open Anyway” button will appear in the General pane of Security & Privacy preferences for about an hour after you try to open the app, but I'm not seeing that either.)

Any ideas on how I can open this application? Thanks.

MacBook Air (11-inch Mid 2013), macOS Sierra (10.12.6)

Posted on Dec 16, 2017 9:23 AM

Posted on Dec 17, 2017 6:29 AM

From where did you download the app?

I downloaded from here

What I get is an error that states the app is damaged. It is possibly related to Gatekeeper, but nothing you do with Gatekeeper (i.e. those instructions) will open the app. I don't know what is "damaged" about the app, but you can open the jar without issue. However, the program will not run from there as it cannot find it's libraries.

My guess is they need to rewrite their java launcher app to work correctly under High Sierra.

However, their note on the download page seems to indicate they are unwilling to do so. They don't need to pay Apple at all. They just have to write their software correctly.

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