I am working on migrating my 1.4.7 world to 1.5.1. In the process I updated Logistics Pipes from LogisticsPipes-MC1.4.7-0.7.0.90 to the latest jenkins build (LogisticsPipes-MC1.5.1-0.7.2.dev.398)

After I started the server, i started getting spammed with the following exception/stack trace approx. once per second. I am getting 50+ of these every second (i can only speculate that this is every logistics pipe on the server.

java.lang.NoSuchFieldException: tagMap
at java.lang.Class.getDeclaredField(Unknown Source)
at logisticspipes.utils.FinalNBTTagCompound.(FinalNBTTagCompound.java:18)
at logisticspipes.utils.ItemIdentifier.get(ItemIdentifier.java:125)
at logisticspipes.utils.ItemIdentifier.get(ItemIdentifier.java:148)
at logisticspipes.proxy.specialinventoryhandler.AEInterfaceInventoryHandler.getItems(AEInterfaceInventoryHandler.java:68)
at logisticspipes.pipes.PipeItemsProviderLogistics.getSpecificInterests(PipeItemsProviderLogistics.java:441)
at logisticspipes.routing.ServerRouter.updateInterests(ServerRouter.java:821)
at logisticspipes.routing.ServerRouter.update(ServerRouter.java:734)
at logisticspipes.pipes.basic.CoreRoutedPipe.updateEntity(CoreRoutedPipe.java:308)
at buildcraft.transport.TileGenericPipe.func_70316_g(TileGenericPipe.java:189)
at net.minecraft.world.World.func_72939_s(World.java:2196)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:546)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:651)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:274)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:570)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:468)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

For what it's worth, I have the same error on a world that was started in 1.5.1. LogPipes was working fine until I requested a complex crafting. Down revving the previous few versions did not resolve the issue. I had previously updated to resolve the crafting sign issue.

EDIT: P.S. I didn't want to create a new issue for an identical error; if that is not ideal, let me know.

java.lang.NoSuchFieldException: tagMap
at java.lang.Class.getDeclaredField(Unknown Source)
at logisticspipes.utils.FinalNBTTagCompound.(FinalNBTTagCompound.java:18)
at logisticspipes.utils.ItemIdentifier.get(ItemIdentifier.java:125)
at logisticspipes.utils.ItemIdentifier.get(ItemIdentifier.java:148)
at logisticspipes.utils.InventoryUtil.getItems(InventoryUtil.java:76)
at logisticspipes.pipes.PipeLogisticsChassi.getSpecificInterests(PipeLogisticsChassi.java:626)
at logisticspipes.routing.ServerRouter.updateInterests(ServerRouter.java:821)
at logisticspipes.routing.ServerRouter.update(ServerRouter.java:734)
at logisticspipes.pipes.basic.CoreRoutedPipe.updateEntity(CoreRoutedPipe.java:308)
at buildcraft.transport.TileGenericPipe.func_70316_g(TileGenericPipe.java:189)
at net.minecraft.world.World.func_72939_s(World.java:2196)
at net.minecraft.world.WorldServer.func_72939_s(WorldServer.java:546)
at net.minecraft.server.MinecraftServer.func_71190_q(MinecraftServer.java:651)
at net.minecraft.server.dedicated.DedicatedServer.func_71190_q(DedicatedServer.java:274)
at net.minecraft.server.MinecraftServer.func_71217_p(MinecraftServer.java:570)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:468)
at net.minecraft.server.ThreadMinecraftServer.run(SourceFile:573)

lp for 1.5.1 is still dev; known bugs include some rendering issues, and failed requests reporting wrong (specifically causing the "missing ingredients" list on a remote request, and the partial requests on suppliers to be wrong).

you are probably getting one of those errors for each damageable item type on the network.

Thanks for the reply, Aart. Do you need anything further from the logs or such; or just want this to ride out as you progress in 1.5.1 dev?

That sounds more like a problem with reflection and srg_names inside the mod. LP only looks for the obfuscated name and for the mcp name but not for the srg name. Shouldn't be hard to fix.

Should be fixed now.

Just a heads-up: restored from backup the world at the point where LP was causing the errors. This fixed the specific error on world load. Additionally, I was able to request some items, including autocrafted items, successfully. Well done! Thanks for looking at this issue.