@Cloud9Skywalker download Wii U USB Helper and use that to download the official N64 VC files to your PC. Then when they're in your "downloaded" section, you right-click on them and select "unpack". The unpacked folder is what you select as a "base". To know which base games you need, there is a...
@phacox_cll
HOLY CRAP THAT WORKED
So I get what was going on now. When my injects were working, I hadn't connected USB storage yet. Then after I connected USB storage, they all started bringing up Error 199-9999. So with USB storage attached, I just had to move them all from the NAND to the...
I was having the "Base is Invalid" error, what you have to do is unpack the official VC files. I used Wii U USB Helper to download the official files, then you right click on them and say "Unpack". Keep all your unpacked folders in their own folder, and then you can use those as your bases...