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Fix “an error occurred while preparing the installation” By Starting in Safe Mode

Set the correct date using this command date -u (Each bracket must be replaced by a 2-digits number, for example: date -u 0310140021)Ĭopy and paste the commands above so you don’t make a mistakeĪfter setting the date correctly (you can verify that you have changed the date correctly by rerunning the date command another time), restart the macOS installation, you shouldn’t get the “an error occurred while preparing the installation, try running this application again” error message again.

This will show you the current date of your system. To solve this problem you must set your date and time correctly. The error message “an error occurred while preparing the installation, try running this application again” is displayed when you try to install a macOS update while the date and time of your mac are out of sync. Fix “an error occurred while preparing the installation” Error By Correcting Date This process is quite long because it requires a complete reload of the installation files, which can take time if you have a slow connection.Īfter downloading the new files the installation of the update should proceed in a normal way.

Go to the App Store and download the installation file again.Find the installation program and delete it.To solve the problem “an error occurred while preparing the installation, try running this application again” follow the steps below: FIX “an error occurred while preparing the installation” By Re-downloading Files