Updating El Capitan 10.11.6 to Siera 10.12
Helo, i have an issue upgrading my OS X El Capitan 10.11.6 to Siera 10.12. When i download the dmg file and try to instal it, it pops up a window during the install and says ''you must have an 10.12 version for this to install. The thing is i am trying to instal the first version of Siera 10.12.1 and then to continue upgrading to newer versions.
Any ideas? Please let me now.
Thanks.
MacBook Pro 15″, OS X 10.11