The game crashed whilst there was a severe problem during mod loading that has caused the game to fail
The game crashed whilst there was a severe problem during mod loading that has caused the game to fail
Error: net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from RFTools (rftools)

I need a full log. Also version numbers and other information. Please. I can't see your computer from here

I believe I have the same problem with this guy.
I will add the information here.

Forge Build: MC1.11.2 Build 2579
RFTools version:7.15

Caused by: java.lang.NoClassDefFoundError: li/cil/oc/api/driver/SidedBlock at mcjty.rftools.RFTools.init(RFTools.java:185)

[https://pastebin.com/vfr337Mc](Pastebin Full Log)

Update Open Computers

I've googled that class too , and all results are pointing to OpenComputers as well
But Forge says it was caused by RFTools so..
Thanks anyway

Hey , but my Open Computers is the latest version

What version?

1.7.1.79

Ah ok. The version in rftools fixing this hasn't been released yet. Waiting for Deep Resonance fixes form @josephcsible to do that

okie thank you!

Fixed in 7.16

Thank you!