whenever i add ender io items it totally removes the loot table, like i put it in "level 1" and all of the chests in level 1 are empty.
i tried {"name" : "enderio:darkSteel_sword"} and {"name" : "darkSteel_sword"} with and without enchantments.
also i tried the same thing with various other dark steel loots. i can get other mods to work with the loot tables.

this is in 1.10.2 with roguelikedungeons-1.10.2-1.5.6

also as a side note, i was wondering if "weight" could be in decimals, like .1

Can you actually post your setting so i can look at it? Or at least a simple example which causes the issue.

as for weight, no, it's stored as an integer. If you want one item to be 0.1 of another. just make the first item 1 and the other 10. There's no particular advantage to using fractional numbers.

http://pastebin.com/NpLFiUct
http://pastebin.com/b2FYwSG3

http://pastebin.com/nwQsNC3C - loot
http://pastebin.com/unSHDcic - loot all
http://pastebin.com/XMMm8uHb - loot 0
http://pastebin.com/DMQm1tUJ - loot 1
http://pastebin.com/LN1utmDP - loot 2
http://pastebin.com/0660v9ii - loot 3
http://pastebin.com/mvDaNQiv - loot 4

ok so apparently it's not ender io cause i just finished level 3 and 4 and they work with ender io, idk i'll try to scour it to see what i did wrong >.<

edit: loot all through loot 2 are not working

try removing:

    "overrides" : [
        "LOOTRULES"
    ],

from your "loot all" file.

What that does is reset all previously defined loot rules. You want to use this only if your intention is to empty all the chests and define your own loot.

ok i tried removing it...i actually did want that on.
the result of removing it was that my custom loot files now add nothing, but the default loot does appear in all 5 levels of the dungeon.

Oh ok. well you should start by validating your JSON.
I found at least one mistake in your syntax which would cause it to fail.

One of the things I'm currently working on is making in-game error reporting a little better so it's easier to know what's gone wrong, so it'll tell you exactly where problems are. Right now it just doesn't.

ok lol, you were right. actually i didn't even realize how many mistakes i had until you said.
sorry for being newb and thank you for help ^.^

so the last one i've stared at for like 4 hours and i have no idea what the problem is :c
http://pastebin.com/ZF5Hu7bJ

You didn't close the curly braces for starter and you need to specify level, quantity and each.

woooow xD thank you, yay i finished :D

I make JSON errors constantly when i write it. Embarrassingly it's incredibly difficult to figure out when something is wrong, because the mod tends to bury errors. I've been putting a lot of work into changing that so that the errors are intelligently explained.

Otherwise, even I find this stuff challenging, and I know exactly how it aught to be working.