The MacOS Catalina system includes a host of new features and applications, but as is often the case with updates to software, It is also normal for some unexpected failures to occur. In this article we tell you the usual problems of MacOS Catalina and, of course, we also explain how to solve these incidents.
MacOS Catalina problems in the installation
Although the process of updating to Catalina is quite simple you will find the update in the Apple Mac App Store, some users have reported problems in order to download the update. The most common error codes, at least in the first days of Catalina's download, include messages such as "The network connection was lost" or "The MacOS installation could not continue."
If you've found these error messages, keep calm and keep going (doing other things in the meantime), since it probably just means that Apple's servers are saturated. A possible culprit is that many of your fellow Mac users have been trying to upgrade at the same time and that is putting more pressure on Apple's servers. If you are trying to download the files via Wi-Fi, you can switch to an Ethernet cable, which is more stable, for best results.
If the error is related to the installation cannot continue, one of the possible culprits could be the lack of disk space. The Catalina download file has a size of 6 GB and you will need 15 to 20 GB of free space to complete the installation. To check how much free space you have on your disk, click on the Apple menu in the upper left corner of the screen, select ?About this Mac? and then go to ?Storage?. You can manage your storage here and free up space if necessary.
If these issues are not to blame for your problems with Catalina, you may want to check if the installation file has been damaged or only partially downloaded. Use the Finder menu to find the ?Install MacOS 10.15? file and remove it, restart the system and try to download the necessary files again from the Mac App Store.
You can even try to log in and out of your App Store or iCloud account, if you have more problems. Once the file has been downloaded, you will be asked to perform the update. If not, find the Catalina installation file on your Mac's drive and double-click it to begin your journey to the dark side of your Mac.
How to troubleshoot MacOS Catalina with Sidecar
If you have an iPad in addition to your Mac, one of Catalina's best features is to be able to use your tablet as a secondary display. Called Sidecar, it is ideal for multitasking and illustrators, since it adds additional space on the screen so you can do more things.
Sidecar is compatible with the iPad 6 or later tablet, iPad mini 5, iPad Air 3 and the iPad Pro line. Be sure to download the latest version of Apple iPadOS on the tablets to take advantage of Sidecar, otherwise your Mac does not I can use this function. And although Catalina works on older Mac systems, Sidecar, as a feature, requires more modern hardware. This means that you will need a 27-inch or newer iMac computer, a 2016 or newer MacBook Pro, a 2018 Mac Mini, a 2019 Mac Pro, a 2018 MacBook Air or a 2016 or newer MacBook.
You will find the Sidecar configuration in the System Preferences application in the Dock of your Mac, and you must enable Wi-Fi, Bluetooth and Handoff. Keep in mind that laptop users must connect directly to a Wi-Fi network and cannot use Sidecar while they are connected to the internet connection of their iPad.
If you have an old iPad device or an old Mac computer, don't lose all hope. Third-party applications, such as Duet Display, have provided a Sidecar-like feature long before Apple launched native support in Catalina, and more enterprising Mac users can also follow a Reddit guide to get Sidecar to work with hardware from Old Mac.
If you have difficulties connecting Bluetooth accessories or peripherals to Catalina, you are not alone. The first step is to open the settings in the upper right corner of the screen and then start the Bluetooth preferences menu. Click on the devices you have problems with, brighten and repair them.
This should solve most of the incidents of bluetooth, but if you still have problems, you should open your search in the Finder and then click Go on the menu. Select Go to folder and type ?/ Library / Preferences?. You can see a file titled ?com.apple.Bluetooth.plist?.
If you prefer, you can also save a copy to an external flash drive before deleting it to be sure. When the file has been deleted, you will have to restart your Mac and try to pair your bluetooth devices again.
Similarly, some users who have updated Catalina also found that their mouse is no longer working. Do not curse the cursor, as there is an easy solution to put the pointer back to work. You must navigate to the same directory ?/ Library / Preferences? and delete two files.
Search for ?com.apple.com.apple.AppleMultitouchMouse.plist? and ?com.apple.driver.AppleBluetoothMultitouch.mouse.plist? and move them to your Mac's trash. To achieve this, you may have to find a USB mouse with cable for temporary use. Once the files have been deleted, restart your Mac and you can recover the cursor control.
Although Catalina introduces Mac users into a completely new world of iOS applications that are adapted to work on the Mac computer (including Apple's native solutions such as the News application), older applications will no longer work in Catalina.
If you frequently use older 32-bit applications, such as 1Password 2.12.2, QuickBooks 2015 or VMWare Fusion 3.1.4, among others, then you will have no luck with Catalina. Even older versions of Adobe's standalone applications are causing problems. With its latest operating system for Mac, Apple ended compatibility with all 32-bit applications, which means that a good number of antivirus applications will no longer work as well.
There are about 235 applications that will no longer work with Catalina, but fortunately, many of them are older versions with suitable 64-bit replacements already available. If you are the owner of these old 32-bit applications, you may have to upgrade to new versions in the Mac App Store when they are available, or you will have to wait for developers to publish 64-bit updates.
If you need to use those applications immediately, the only option is to return to Mojave.
Access to MacOS Catalina files
To reinforce Catalina's security, Apple has changed the way applications can access your files. As with an iPhone, when opening a newly downloaded application, Catalina can launch a pop-up window asking you to grant permission to that application to access specific files or folders. If you have denied access and change your mind, you can do so by opening the System Preferences application on your Mac in the Dock.
Then choose Security and privacy and click on Files and folders in the left pane. In the right pane, you will find a list of applications along with their file access privileges, and you can click on the individual applications to make the changes.
Once you have granted or revoked file access privileges, be sure to restart the application for the changes to be effective.
MacOS Catalina problems related to performance
After recently upgrading to a new operating system, it is natural for it to run and feel a bit slow. That slowness can be attributed to the fact that Catalina gets the updates of the applications in the background and tries to update the libraries and files. Generally, performance should improve after a few days (make sure you reboot your system if you feel it doesn't work as it should), but if you still notice that your Mac is slow, you may want to do a clean installation of Catalina, in instead of an operating system update, to see if performance improves.
An installation from scratch may also help with other incompatibilities or system errors you may be experiencing. As in the update process, you should download the MacOS Catalina installer from the Mac App Store. You will also need a USB drive, or a USB-C flash drive, depending on the model of your Mac, with a capacity of 16 GB or higher.
Follow Apple's instructions to create a boot installer, which includes the use of Terminal commands. If the instructions overwhelm you, you can also visit the Apple Genius Bar and borrow your boot flash drive as an alternative.