MacOS – Macbook Pro Mid2012 with OS Sierra 10.12.6 won’t download apps without 10.13.6 or later. No update available on AppStore

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Subject says it all. I have a Macbook Pro Mid2012 runing MacOS Sierra 10.12.6. Something to note – This is my girlfriend's computer – My old Mac bit the dust (Late 2011) and I placed my upgraded SSD and 8 GB of Ram into her Mac recently.

I'm trying to download Logic Pro X from the app store and I get this message:

"Logic Pro X can't be installed on "HDD" because MacOS version 10.13.6 or later is required."

I'm running 10.12.6. And there are no software updates available in my app store.. What should I do in this situation?

Best,

Tanner

Best Answer

Logic Pro X requires macOS High Sierra 10.13.6 or later. You'd need to upgrade the MacBook Pro from macOS Sierra 10.12.6 to macOS High Sierra 10.13.6 or later.

Your model of MacBook Pro (Mid 2012) supports the latest macOS available as of this writing, which is macOS Catalina 10.15.4.

So here's what you need to do to be able to install and Logic Pro X.

Use this link to download macOS High Sierra 10.13.6 installer from the Mac App Store.
Once the installer downloads, you can run it to upgrade your system to macOS High Sierra 10.13.6. It's advisable to keep a backup of the system/important data files before you begin the installation.
Once you have the OS upgrade installed, you can install Logic Pro X from the Mac App Store.

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Try resetting the Mac App Store.

Enable the debug menu and restart the Mac App Store.

defaults write com.apple.appstore ShowDebugMenu -bool true

Choose the Reset Application option and restart the Mac App Store.

MacOS – way to clear update data from the Mac App Store

There certainly is.
I believe that I have worked out one of the best ways of going about such a task as I found myself having to do this frequently due to problems similar to those you are experiencing. I may just add that they stopped after the macOS High Sierra upgrade in September of 2017.

Go directly into the Mac AppStore's temporary files folder:

Quit the Mac AppStore completely (no updates running etc.)
Open Terminal and type: open $TMPDIR../C/com.apple.appstore/, hit the Return key.
A Finder window should have popped up with the files and folders in the "com.apple.appstore" location. Move (not copy) these to another folder (perhaps make one on the desktop) in case things go sideways, or (if you are confident), move them to the Trash right away.
Most importantly, do not delete or adjust any other files outside of this directory, when finished close the "com.apple.applestore" folder.
Relaunch the App Store.

Verification and several other download issues should be fixed with these steps and you may find that you are once again able to properly download and install the applications fully (i.e. not starting midway).

What next?
I would further suggest running one or two sweeps of CCleaner for Mac (a free, trusted software) with options to fine-tune specific types of files.

Open CCleaner
Go to Cleaner, select the Applications tab
Under Applications, check App Store

If CCleaner is run after completing clearing the AppStore temp files as described in the first set of steps, CCleaner will most likely remove any residual files and folders from the App Store that are only half downloaded or otherwise exhibit similar properties. It just works!

For an additional read, this article explains my thinking behind the first suggestion, while this one may be a little more general.
Let me know how you make out or if there is anything you would like me to clarify. I'm always more than happy to do into further details.

Best Answer

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MacOS – App Store using old information after manual XCode upgrade

MacOS – way to clear update data from the Mac App Store

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