Dear alex3368,
i don’t know exactly your Problem but i have the Problem to install Komplete 7 on Yosemite and the solution i found here:
http://www.native-instruments.com/forum/threads/yosemite.228464/page-2

Here the important text:
Fortunately you can fix it:

  • Copy the Kore 2 Installer Mac.mpkg from the ISO to any directory on your mac, so that you can modify it.
  • On the mpkg right click > Show package content
  • Edit the Contents/distribution.dist file with any text editor and remove the lines 8 to 11 in the pm_install_check() function (this is where the version is checked as the name says)
    You should have something like this
    function pm_install_check() {
    return true;
    }

If you don’t feel like editing the file, here is the modified file (attached), simply replace the one in the mpkg by this one.

Then double-click the fixed mpkg and the installer should run fine.

You can then run the 2.1.4 update which won’t require any kind of fix.

Here on a fresh Yosemite install on my 2013 iMac, Kore 2.1.4 + Kore 2 controller work as expected.

Hope it helps,

Laurent

All the best,

waldemaR