I'm trying to upgrade my OS to Mojave, I can't seem to find a way to do it. Through the app store, I get a message that the version I'm trying to download is damaged.

If you go to the App Store Mojave download page and it says 'Open'

the App Store has detected a copy of the Install macOS Mojave.app

in your Applications folder. Locate it move it to the Trash, empty the Trash.

Connect your mac to your router via cable, Restart your mac.

Go back to the App Store Mojave page it should now say 'Get'

or 'Download'.

Do not use the mac while it is downloading and do not use any other devices

that share the same internet connection.

Choose Applications from the Finder's Go menu, throw the installer away, and download another copy. You may need to restart in Safe Mode(press Shift) or use a wired Internet connection.

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