I have tried for a long time to figure out a way to read a NBT Tag from Lua but all it says when I hit enter is 'nil "0"'.
In reactorcraft, you can make toroid magnets, and for some reason unlike other blocks in reactorcraft, you cannot read the tank levels. So, you must get the NBT data. I looked in the mod files and found the tags, but when I put the string into the function to get the NBT Tag, it says 'nil "unknown error"', meaning it knows that it is a recognized tag, becuase otherwise with a random string nothing happens.
Please help me get this data from LUA!!