Villager Custom bug

Incomplete without crash report ([minecraft|http://hopper.minecraft.net/help/finding-minecraft-data-folder]/crash-reports/crash-<DATE>-client.txt). Please attach it so that we can diagnose your issue.

Well, that's little information.
What exactly did you change on the villager ?

Description: Ticking memory connection

java.lang.NullPointerException
	at act.a(SourceFile:55)
	at vc.a(SourceFile:290)
	at xa.a(SourceFile:58)
	at wz.b(SourceFile:117)
	at vy.a(SourceFile:193)
	at kv.a(SourceFile:645)
	at fn.a(SourceFile:32)
	at eb.b(SourceFile:63)
	at kv.e(SourceFile:64)

I came across the same thing. It may be because I used 1.6.2 in-built NBTEdit which is a 3rd party mod but just in case, I have attached the full report in a file.

This may be a 3rd party mod issue. Fingers crossed it isn't and can be fixed

Here is my crash report, I was trading with a custom Villager on my adventure map.

java.lang.NullPointerException: Ticking memory connection
at afk.a(SourceFile:55)
at xs.a(SourceFile:292)
at zr.a(SourceFile:58)
at yp.a(SourceFile:238)
at ng.a(SourceFile:623)
at iu.a(SourceFile:32)
at iu.a(SourceFile:10)
at eg.a(SourceFile:166)
at nb.c(SourceFile:134)
at net.minecraft.server.MinecraftServer.v(SourceFile:530)
at net.minecraft.server.MinecraftServer.u(SourceFile:443)
at btq.u(SourceFile:117)
at net.minecraft.server.MinecraftServer.run(SourceFile:359)
at lh.run(SourceFile:618)

I tried to create a custom green villager I open the interact interface and it crashed 😞

I'm using Minecraft 1.7.9

Is this still a concern in the current Minecraft version 14w30c or later? If so, please update the affected versions in order to best aid Mojang ensuring bugs are still valid in the latest releases/pre-releases.

To me, this is more because of a third-party mod (In-game NBT-Edit with Forge). I don't think this mod is updated for the snapshots, but more for official versions. Sorry