Hacking Gamecube injection installs

[Jtgoshaff]

Is there a guide on how to install gc games on the Wii U. I used wii u usb helper and provided my iso for the preconverted game but I get an error saying check wup files are correct. I am running cfw so I am not sure if I made a mistake in the process. Does the iso need to be named gamename [GAMEID]? I also clicked the button to prepare the sd card.