El Capitan Could Not Be Installed On Your Computer

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I just downloaded LibreOffice 5 on my Mac running El Capitan (OS X 10.11).

El Capitan Could Not Be Installed On Your Computer For A

OS x could not be installed on your computer el capitan 100% solution.Step 1: Check whether you have the same issue. Open the terminal.Step 2: Check the date. FIX This Copy of the Install OS X El Capitan Application Can’t be Verified. If the issue is with your Computer or a Laptop you should try using Restoro which can scan the repositories and replace corrupt and missing files. This works in most cases, where the issue is originated due to a system corruption. Restart and Reinstall Mac. Sometimes, the simplest of the solutions can fix even the most critical issues with.

When I try to open it, I get a message (see picture):

El Capitan Could Not Be Installed On Your Computer System

“LibreOffice” will damage your computer. You should move it to the Trash.

This is different than the message I’ve gotten in the past with some applications, under previous OS X version, that the application was downloaded from the Internet, where I was able to by pass the warning by right-click on the app and clicking Open. That results in the same message this time; there is no option to open it.

Could my download from LibreOffice.org have been infected? Has Apple just gotten more aggressive with its malware warnings?

How do I verify I have a non-infected copy and run it?

OS X could not be installed on your computer.
No packages were eligible for install. Contact the software manufacturer for assistance.
Quit the installer to restart your computer and try again

Oh dear… When trying to install OS X 10.11 (El Capitan) you may encounter this message. This happens because the the installer certificates are no longer valid when checked against the clock of your mac.

Your

Don’t panic though as this is easily fixed using Terminal, so don’t restart immediately.

El Capitan Could Not Be Installed

  • Click Utilities on the menu bar
  • Select Terminal
  • Type date 062112422016
  • Exit Terminal
  • Click Restart

Can't Install El Capitan

When you restart the mac and try the installer again it will now believe the certificates are valid and will continue as it should.