Issue description:

client crash's on startup

What happens:

yep, the client crash's on startup

What you expected to happen:

loading of mod... ;-)

Version (make sure you are on the latest version before reporting):

• Minecraft: 1.12
• Forge: 14.21.1.2443
• Refined Storage: 1.5.19

Does this issue occur on a server? [yes/no]
didn't test it, error was on starting client.

If a (crash)log is relevant for this issue, link it here:

crash-2017-10-09_08.57.29-client.txt

Update your Forge. I should probably set a minimum version.

okay, but sorry for asking.
am i blind or isn't the 14.21.1.2443 the latest for 1.12.0?
forge 1.12
is there a way to use later forge versions on 1.12.0? (1.12.2 - 14.23.0.2512 for example)

Oh, indeed, it seems like I broke 1.12.0 compatibility... I will push a new version that brings back compatibility with 1.12.0 later today.

Fixed in RS 1.5.20

thanks a lot!