So I do have some Parallels Virtual Machines on my home server and I thought I would just test it out on the older machines. We have been building for a minimum MacOS of 10.15 Catalina for awhile now, ever since craft and qt stopped supporting everything lower than those. You might remember when we had to make that change a couple of years ago. So I started by trying it on 10.15.2, and I just found that I encountered the same error you reported Peter. Then I tried Big Sur and found the same error. I tried Sonoma and found that it worked fine. So something must have changed in the last few months either with MacOS, craft, or QT that is causing this error. I don't think it is anything to do with KStars itself. It is possible I have to change something in the build script due to a change somewhere. First I need to see why even though I told it to build for a minimum of 10.15, why it's not working on anything less than Sonoma.

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