http://pastebin.com/99Znp44a

Hello there :-) My friend told me, that he got game crash, so I'm sending you stacktrace :-) Hope you will fix it soon :-)

Hi there. I guess the network tool is disabled in the AE config file. I disabled it and I can reproduce the same stacktrace.

It happens when you click Arcane Assembler.

Yes. It should crash on all Thaumic Energistics network devices with GUI. There is no test for if the network tool is disabled and an error is thrown. Tomorrow I will commit a pull request. I do some further testing. (The network tool is not the only one you can disable...)

If your friend can, he should just activate the network tool for now.

Can you send me source that you want to pull? I will compile it by myself and test it on server.

You can just clone my repo I think.

Thanks a lot :-)

When i tried to compile your source, I find out, what support of AE2 RV3 is wrong idea. Last RV3 doesn't work with this mod. So i think it's better to replace "List ... drops" row 634 of tileentities/TileArcaneAssembler.java "ArrayList ... drops" for now and put it back when AE2 author will bring AE2 RV3 Beta or stable.

You could just checkout the version 0.8.10.10 and add the changes I did. That is for AE rv2. I did that for my main world and it works like a charm.

I simly switched from List to ArrayList and it works. But - this AE2 works only on oldest RV3, newer RV3 versions throw errors.