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5.4.3 Failing to start on OSX Lion

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I'm having problems with 5.4.3 crashing on OSX Lion 10.7.5 when I try to install and start it.

V 5.3.7 is running with no problems. I copied the Maps directory over from 5.3.7 before trying to start the update but it still fails to start.

I have installed 5.4.3 on a newer MacBookPro running OSX El Capitan 10.11.6 with no problem.

Is there a compatibility issue with the new update and Lion 10.7.5 ?

Has anyone got this combination to work or can offer any suggestions?


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Unfortunately the framework we are using (Qt) is not anymore compatible with OS/X 10.7. It starts at 10.8 as you can see here: http://doc.qt.io/qt-5/supported-platforms.html


There is not much we can do about it since we need and use a lot features that are not in the older Qt versions.



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Thanks for the reply Philippe. I thought that might be the problem. Thank you for all the great work you are doing on this application.

It gets better and better with every iteration.



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