NPE after update from 1.6.2/1.1.2 to 1.6.6/1.2.3 (MC 1.7.10)

[Former user]

NullPointerException crash, after update of Glenn's Gases (both mods)

I don't know the code, so take the following with a big grain of salt: Based on a fast look through the source code, it seems filter is null due to some invalid tag compound. How exactly the tag got invalid is unclear to me, it might be specific to my upgrade path (used to be 1.6.2 and 1.1.2). Maybe a defensive

if (filter == null) {
  filter = new GasTypeFilterOpen();
}

in TileEntityDirectionalGasPropellor might help, but admittedly this is kind of a hack.

In any case, thank you for this terrific mod!

[Trent VanSlyke]

I'll look at it, and I'm pretty sure I know why that exists. Mind throwing the world file my way so I can verify when I fix it?

[Trent VanSlyke]

Could you give this version a download and see if the issue is resolved? I'm unable to reproduce the error on my machine. trentv.net/gasesFramework-1.7.10-1.2.3-bugfix-test.jar