Summary changed from Cannot install wxPython on Mac OSX 10.11 El Capitan + wxWidgets build error? Seems to mainly be an installer issue in OS X El Capitan (10. The install of El Capitan, at least what I thought was the installation, took a while. A screen shows up with the 10.11 logo stating to install click continue, agree to terms and install OS, I got the option to use disk utility, time machine or recovery or click the install button. Very easy way to reinstall Mac if you are thinking about selling your computer or simply need to install a fresh copy OS X El Capitan follow the tutorial to.
Installing El Capiton on an old Mac Book Pro today, I received the error:
OS X could not be installed on your computer
Install Os X El Capitan Cannot Be Verified
No packages were eligible for install. Contact the software manufacturer for assistance.
Quit the installer to restart your computer and try again.
Cannot Install Os X El Capitan Without
I checked Apple’s support Matrix (it is a very old macbook pro) at https://support.apple.com/kb/SP728?locale=en_GB and it was listed as supported.
After lots of Googling and investigation, I discovered that the date and time were not set to current, the macbook thought it was year 2000.
You can easily reset the time and date by following the steps below:
- Click Utilities on the menu bar
- Select Terminal
- Type date
- Confirm the date is wrong
- Type date 062112422016 (example: June 21st 12:42 2016)
- Exit terminal
- Click Restart
Once the Date and time are configured you will be able to install OS X.
Easy fix, for a ridiculous error!