For your security Mac OS applications distributed via the Mac App Store are required to operate within a sandbox, which prevents them from accessing files which are not part of the app without requesting permission to do so.
Mosiac needs to be able to query the size of windows from other applications and set their size and position. Mosaic achieves this using Accessibilty features of macOS, but for your security we require you to grant permission fdor Mosaic to use this..
When you tap the "Grant Access..." button you will be presented with the Security & Privacy system preferences panel, with the Privacy tab selected and the Accessibilty options highlighted in the list. If the padlock icon shows locked you must click this and enter your administrator password to allow you to make changes. Once this is done you can simply tick the checkbox for Mosaic in the list.
Comments
3 comments
This instructions are ok, but in reality you are not "presented with the Security & Privacy system preferences panel", instead you are presented with the System Preferences window, and nowhere the Security & Privacy settings is mentioned, only Accessibility is mentioned, which makes it confusing. There is a low resolution picture of the settings, but in this case, a bad picture is no worth a few words...
Because the reasons J. Reino explains, I was looking all around the Accessibility panel which naturally was quite different, but the resolution of your image is not high enough to tell it is within Security and Privacy. It was only when I found the support note above that I realized you meant the Accessibility choice within the Privacy tab within the Security and Privacy panel. Wasted 15 minutes which was completely avoidable had you opened to the correct panel automatically (which many apps do), and described the correct panel in the text and image for the install function.
oh bloody hell - really - 7 months later this is still not fixed - i now have it working .... but jose and jjl are right instructions you provide are NOT what needs to happen - I am working now - but wasted a LOT of time - including how to even find this place to ask the question ....
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