The application was not downloaded from the Mac App Store
If you’ve set your Mac to only allow apps from the App Store to be installed and you try to install an app from another source, your Mac will tell you that the app isn’t from the App Store.;
Open System Preferences > Privacy & Security;
Allow the use of applications downloaded from the “App Store and from verified developers.” An administrator password or Touch ID is required.
Congratulations, you can now run programs from the Mac App Store and from verified developers.;
If this does not help, check out the article about disabling Gatekeeper and performing “dequarantine”.
Application from an unidentified developer.
If your Mac allows installation of apps from the App Store and from verified developers, and you try to install a program that isn’t registered with Apple, you’ll also see a warning.
Control (or Ctrl) ⌃-click the program icon, then select Open from the context menu.
Or first open the program by double-clicking, click “OK” in the warning that appears, then right-click on the program, then select “Open” in the context menu.
In the dialog box, click the “Open” button.
The program is saved in the list of exclusions from security settings, and in the future it can be launched by double-clicking (or from Launchpad) like any registered program.
This solution can be applied to the following error.
If this does not help, check out the article about disabling Gatekeeper and performing “dequarantine”.
The program cannot be checked for malware.
Due to the introduction of mandatory app notarization by Apple, macOS Catalina does not allow you to run an unverified app, even if it is signed by a registered developer.
This results in the application being unable to launch.
From the System Preferences menu, click Security & Privacy and select General.
Click “Confirm Login” to launch the blocked program.
In the dialog box, click “Open”.
The program is saved in the list of exclusions from security settings, and in the future it can be launched by double-clicking (or from Launchpad) like any registered program.
This solution can be applied to the previous error.
If this does not help, check out the article about disabling Gatekeeper and performing “dequarantine”.
The program is damaged
If macOS detects a problem with an app—such as malicious content or modifications made after a scan—you’ll receive a notification when you try to open the app and ask you to move it to the Trash.
Use the Auto Fix script for an automatic solution. It can be downloaded via this link
Or run the command in the terminal: sudo xattr -r -c /Applications/LockedApp.app Instead of “LockedApp.app” there should be a damaged application.
Read more about Gatekeeper at this link
Error: “The disk image is damaged”
This error occurs if the file was downloaded incompletely or with errors.
To avoid the problem, use download managers, for example: • Free Download Manager •Motrix • JDownloader 2 • Progressive Downloader and other similar programs.
Such applications download files faster due to multi-threaded connections, provide a stable connection and protect against interruptions.
In conjunction with a browser extension, they automatically intercept links and replace the built-in download with a more reliable one.
An example of installing a download manager is in our article: How to speed up downloading files 10 times
Error installing Adobe applications.
This error occurs when installing Creative Cloud applications that use local installation packages.
This method does not work on Macs with Apple Silicon processors for Adobe 2021 builds from TNT Team.
Right-click on the Install file and select “Show package contents” from the context menu.
Follow: Contents > MacOS Run the Unix executable called Install.
This will open a terminal and launch the installation program. Enter the administrator password to allow installation.
You can install in trial mode, use a serial number, or confirm your Creative Cloud subscription.
Error 1: when installing Adobe products
This error appears if you do not have Rosetta installed. Rosetta is an Apple utility that allows you to run programs designed for Macs with Intel processors.
You’ve probably recently purchased a Mac and are new to macOS: Rosetta isn’t installed by default and is prompted for installation when you run programs designed for Intel-based Macs.
To fix the error, launch the Terminal program. “Terminal” is located along the path: Programs → Utilities → Terminal.
A window will open for entering commands indicating the date, user name and device name.
Copy and paste the following command:
/usr/sbin/softwareupdate –install-rosetta –agree-to-license
Press Enter.
To install Rosetta you will need an Internet connection. The downloading and installation of files will begin – wait until it is completed.
The installation will complete with a message in the Terminal: “Install of Rosetta 2 finished successfully.”
After installing Rosetta, reinstall the Adobe product.
Error: Problem with CCXProcess when installing Adobe
Problem: CCXProcess component (part of Creative Cloud) is not installed. Reason: no Rosetta (needed to run Intel code on a Mac with an M chip).
Solution: 1. Open Terminal. 2. Install Rosetta using the command in the Terminal:
/usr/sbin/softwareupdate –install-rosetta –agree-to-license
3. Wait for the message: “Install of Rosetta 2 finished successfully.” 4. Run the Adobe installation again – CCXProcess will install without errors.
Error: installation is not possible on Intel processors
Reason: Monter Group releases only support Apple Silicon (M1, M2, M3 and newer). Intel architecture is not compatible with Apple Silicon.
In simple words: Architecture is the “language” of the processor. – Intel speaks English – Apple Silicon – in Russian A Russian program will not understand an English processor.
Universal programs contain both languages and work everywhere.
Rosetta – translator: Allows you to run Intel programs on Apple Silicon, but with a load on the system.
Solution: Use universal versions: • Releases with Adobe Activation Tool. • Releases from QiuChenly. • Releases from RiD.
Error installing .pkg packages
Installation failed. The installer encountered an error that caused the installation to fail. Contact the software manufacturer for assistance.
This error most often occurs when installing games downloaded from GOG in the form of packages and most often when installing very large games.
It usually occurs at the last stage of installation and is due to the fact that the postinstall script embedded in the installer has incorrect permissions.
You can try to extract the game files from the .pkg installer yourself using the standard pkgutil utility or some archivers.
Or you can do this using special programs designed to extract files from such packages, for example pkg2app or Pacifist.
If the problem is with the game installer from GOG, then the easiest way is to use the pkg2app utility, because it is open source, free and weighs a couple of megabytes.
Just run the pkg2app application, configure the location where files from packages will be unpacked and drag the problematic .pkg file onto the pkg2app icon and wait for the files to be extracted.
