Versions:
appliedenergistics2-rv4-stable-1.jar
ExtraCells-1.10.2-2.4.4a15.jar
WirelessCraftingTerminal-1.10.2-2.1.39.jar

Crash Report:
https://pastebin.com/cHm7uSby

The wireless crafting terminal itself does not crash, but when crafting it into the universal wireless terminal, it does.

ExtraCells/ExtraCells2#517

definitely on my end..thanks for reporting..i'll get a fix out asap

update to latest 1.10.2 version available on curse :)

Nope.
https://pastebin.com/GUKSTWJE

net.minecraftforge.fml.common.LoaderExceptionModCrash: Caught exception from Thermal Expansion (thermalexpansion) Caused by: java.lang.NoSuchMethodError: p455w0rd.wct.api.IWCTItems.wirelessCraftingTerminal()Lp455w0rd/wct/api/IWCTItem; at extracells.integration.WirelessCrafting.WirelessCrafting$.getCraftingTerminal(WirelessCrafting.scala:25)

Weird that it's Thermal Expansion that does it, but still getting an error. This time the game won't even launch.

It's a different error, at least, so maybe what you did did fix the original error.

I think this one may actually be on the Extra Cells side, and not the WCT side?

Possibly it's this error?
ExtraCells/ExtraCells2#514

damn that's really weird..the method exists everywhere it's needed (including in IWCTItems.class that is being referenced here) - https://github.com/p455w0rd/WirelessCraftingTerminal/blob/1.10.2/src/main/java/p455w0rd/wct/api/IWCTItems.java#L12

Yeah, I saw that. I have no idea.

The EC call doesn't look like the error, though:

def getCraftingTerminal =

  WCTApi.instance.items.wirelessCraftingTerminal.getStack

Maybe that has something to do with it?