Why can't I play my saved files from my old 360 console to my Xbox one?

http://wccftech.com/dragon-age-inquisition-exporting-saved-games-generation-consoles/

Maybe that'll help?

Hi! Just in order to avoid any confusion: Is your old save file for the Xbox 360 version of GTA San Andreas? Please keep in mind that although both the OG Xbox and Xbox 360 version of this title work on the Xbox One, only the newer Xbox 360 version will
be downloaded and therefore you can only use your old save game if you played the game for the Xbox 360 in the past.

Yes my save file is on the Xbox 360 where I digitally purchased it from the store on my Xbox 360, I wouldn't expect them to be able to pull save files from OG Xbox!

The saves aren't swappable between versions. The 360 saves will only work with the 360 version of the game.

Since the game is available on both consoles it is seen as 2 different versions. So the save file will only work with the 360 version. You would need to start over if you start on the One version since it's not a backwards compatible game.

I created a gamer pic on my xbox one and the only one that shows on the forums is my old one from my 360 and when I go to change it in the edit profile it says I have to log into my 360. Why can't I make that change on my xbox one since it is my console
now and not the 360?