ERROR LOG: http://pastebin.com/ar8ZGBct

java.lang.NullPointerException at >gr8pefish.ironbackpacks.util.helpers.IronBackpacksHelper.areItemsEqualForStacking(IronBackpacksHelper.java:346) ~[IronBackpacksHelper.class:1.10.2-2.2.18] at >gr8pefish.ironbackpacks.events.ForgeEventHandler.onBlockPlacedEvent(ForgeEventHandler.java:234) ~[ForgeEventHandler.class:1.10.2-2.2.18]

What happens:

Cannot create Nether Portal with Flint and Steel. Just creates a fire. Portal works on 2.2.17

What you expected to happen:

Nether Portal to open.

Steps to reproduce (important):

1. place obsidian in portal shape
2. activate flint and steel on block

...

Affected Versions (Do not use "latest"):

• IronBackpacks: 2.2.18
• Minecraft: 1.10.2
• Forge: 2166

Update Forge to 2120 or above, that should fix it. Did it not spam an error when using Iron Backpacks 2.2.18 that your forge wasn't the correct one?

It did not. I'll try that now.

Wait. I am already on 2166 which is above 2120.

Oh wow, sorry I didn't read right, I thought that was 2016. I'll check it out.

Also I just updated Forge to 2171 and still errors.

Sorry, missed some null checks. Should be good now, I'll push out a fix once I get something figured out for #111.