If you've been experiencing issues playing seasons of your favorite shows in the Apple TV app with Siri — you're not alone, and Apple is already working on a fix.
The pleasant part of that did not last long. I had to quit using my Nest thermostat to go with this one and this app. Unfortunately, this thermostat does not work very well. The problem is all appear to be software-based. Changing the temperature temporarily is not nearly as easy as it is with a Nest thermostat.

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Delete the app preference file. Plist files can become corrupt when a Mac shuts down or restarts unexpectedly or when an app freezes or crashes. As a result, the app may not open. When you delete a bad preference file, the Mac creates a new plist file that contains all the app's defaults automatically.

By Tasnia Salinas, on January 26, 2020, in Mac Uninstaller

Summary: Found Photoshop, Final Cut Pro, Microsoft Office, Illustrator, Logic Pro X, InDesign, iMovie and other common apps not working after upgrading to macOS Catalina? Check this article to find quick fixes. here before continuing.

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macOS Catalina (version 10.15) is just come out and millions of users have upgraded for enjoying a set of new features. But not everyone is a happy user since many macOS Catalina problems have plagued the new system. One major issue is that users found couples of common apps are no longer working in macOS Catalina. Some common applications you probably use include Transmist 4.1.7, 1Password 2.12.2, iStats Menu 2.9 and QuickBooks. So why these apps are not working on macOS Catalina? Don't worry, you can follow this article to get quick fixes.

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Table of Content:

Part 1: Why So Many Apps No Longer Working on macOS Catalina

One thing for certain is that, if the app you have trouble with is built with 32-bit structure, then you should give it up for good. When macOS Mojave was announced, Apple warned that it would be the last version of macOS that would support older 32-bit apps. Apple has been purging 32-bit apps for the last 10 years and is now ready to take the final step, even if Mac users may not be ready to lose access to older apps (App Can't Be Opened Because Apple Cannot Check It for Malicious Software.).

Compared to 32-bit apps, 64-bit apps can use memory more efficiently so as to offer faster system performance in macOS. The technologies used in macOS Catalina like Metal only work with 64-bit apps. That's why Apple has completely wipe out 32-bit applications in its latest macOS (What Is Other On Mac Storage). In the simplest terms, Apple wants to get rid of outdated apps to make sure everything is properly optimized and isn't an unnecessary drain on system resources (How To Uninstall Programs on Mac).

Get Omni Remover To Uninstall 32-bit Apps in Catalina

Part 2: Full List of Incompatible Apps Not Working on macOS Catalina

It's not only third-party or small-medium-sized developers whose apps are still stuck in 32-bit. Even Apple and other big brands have a collection of older apps that will not work in macOS Catalina. For instance, if you still keep Apple Movie, Final Cut Pro and Motion in use, there may be problems with incompatible media due to older formats or codecs. Check out our complete list of What Apps Are Not Working Properly on macOS Catalina.

App Name	How To Fix
Adobe Illustrator CS5	Upgrade to a newer version of the app.
Abobe InDesign CS5 & CS6	Upgrade to a newer version of the app.
Apple Aperture	Use Final Cut Pro or other Aperture alternative
Microsoft Excel 2011	Replaced by Microsoft Excel 2016
Microsoft PowerPoint 2011	Replaced by Microsoft PowerPoint 2016
Microsoft Outlook 2011	Replaced by Microsoft Outlook 2016
Microsoft Word 2011	Replaced by Microsoft Word 2016
iWork '09	Update to iWork 2013 or newer version
Logic Studio	Replaced by Logic Pro X
Compressor 4.3.2	Update to the latest version of Compression
MainStage	Update to the latest version of MainStage
Photoshop	Update to Photoshop CC 2019
Acrobat Pro	Update to Acrobat Pro 9.5.5 higher version
Premiere Pro CS4	Update to Premiere Pro 2019
After Effects CS5	Update to After Effects CC 2019

Part 3: More Helpful App Not Working in macOS Catalina Tips

In ‌macOS Mojave‌ and earlier versions of macOS like High Sierra, you can continue to use your 32-bit apps. But it's another case in macOS Catalina (How To Completely Uninstall Applications on macOS Catalina). If you have a 32-bit apps that you absolute need, first up, think twice before upgrading to Mac OS 10.15. Also consider the following tips that may help you walk through this 32-bit app not working in macOS Catalina issue.

General Tips for Freeing Up Space on Mac:

Update incapable apps: Upgrade to a newer version of the app that not working in macOS Catalina.

Find alternative: If the app developer hasn't updated the app, find an alternative that can run smoothly on macOS Catalina.

Stay away from macOS Catalina: If you largely count on 32-bit applications, you could just decide not to upgrade your Mac to Catalina.

Uninstall not working apps: It's another option to uninstall apps that are not working in macOS Catalina.

Force uninstall malecious apps: To uninstall rogue applications would be harder than you think, such as MacKeeper, Kaspersky or alike. Omni Remover would be your best Malware Removal tool.

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Additionally, many popular older Mac games are 32-bit and thus will not work on MacOS Catalina. We'll discuss these incompatible games in another article. So if you also have some apps that are not working on macOS Catalina, let us know and we'll keep our list update. To completely remove incompatible or stubborn applications on macOS, it's suggested to choose Omni Remover. Download Free Trial >

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Requirements: OS X 10.8+ , 13.1Mb free space
Version 3.3.2 (January 26, 2020) | Support macOS Catalina | Category: Mac Uninstaller

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