Looks like no one’s replied in a while. To start the conversation again, simply ask a new question.

The application Finder.app can

The application Finder.app can't be opened after upgrade to macOS Catalina.

iMac 21.5″, macOS 10.15

Posted on Jul 26, 2020 2:55 PM

Reply

Best reply

Level 10

113,172 points

Posted on Jul 26, 2020 5:15 PM

Boot into Recovery and reinstall macOS.

View in context

Similar questions

Mac App Store does not recognize installed Apps Hi, My Catalina App Store is not recognizing the previous downloaded applications. I can download applications but after restarting Catalina 10.5.4, applications are listed in my account but without the "OPEN" button, instead I see the download icon. The issue was already discussed on this question. Will Catalina 10.15.7 update fix this issue ? Any feedback will be appreciated. Thanks.
264 1
Cannot open new apps Recently upgraded from 10.13 to 10.15 (Catalina). However it will not let me open any newly installed apps. All they do is crash. Older apps that ported over when I upgraded do open, it's the apps that are freshly installed that do not open. The installation of these newly installed apps seems to all be OK, other than they do not open. I did install TechTool Pro 12 to diagnose the issue, but ironically since it's newly installed it also will not open. How do I troubleshoot what is causing these newly installed apps not to work?
490 15
how to find a list of what apps DO Not work on catalina from high sierra how to find a list of what apps DO Not work on catalina from high sierra
192 3

1 reply

Best reply

Level 10

113,172 points

Jul 26, 2020 5:15 PM in response to appnotworking

Boot into Recovery and reinstall macOS.

Reply

The application Finder.app can

Welcome to Apple Support Community

A forum where Apple customers help each other with their products. Get started with your Apple ID.

Learn more Sign up