Played on forge-1.13.2-25.0.54. If I play a world without any datapacks, forge doesn't crash, but when i play a world with datapacks it crashes and gives this crash report:

 

---- Minecraft Crash Report ----
// Surprise! Haha. Well, this is awkward.

Time: 2/25/19 1:42 PM
Description: Exception in server tick loop

java.lang.IllegalStateException: Cannot build unresolved tag entry
    at net.minecraft.tags.Tag$TagEntry.func_200162_a(Tag.java:226)
    at net.minecraft.tags.Tag.<init>(Tag.java:37)
    at net.minecraft.tags.Tag$Builder.func_200051_a(Tag.java:131)
    at net.minecraft.tags.TagCollection.func_199909_a(SourceFile:135)
    at net.minecraft.advancements.FunctionManager.func_195410_a(SourceFile:158)
    at net.minecraft.resources.SimpleReloadableResourceManager.func_199010_c(SimpleReloadableResourceManager.java:125)
    at net.minecraft.resources.SimpleReloadableResourceManager.func_199005_a(SimpleReloadableResourceManager.java:101)
    at net.minecraft.server.MinecraftServer.func_195568_a(MinecraftServer.java:1378)
    at net.minecraft.server.MinecraftServer.func_195560_a(MinecraftServer.java:375)
    at net.minecraft.server.integrated.IntegratedServer.func_71247_a(IntegratedServer.java:75)
    at net.minecraft.server.integrated.IntegratedServer.func_71197_b(IntegratedServer.java:95)
    at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:549)
    at java.lang.Thread.run(Thread.java:745)

A detailed walkthrough of the error, its code path and all known details is as follows:
---------------------------------------------------------------------------------------

-- System Details --
Details:
    Minecraft Version: 1.13.2
    Operating System: Windows 10 (amd64) version 10.0
    Java Version: 1.8.0_51, Oracle Corporation
    Java VM Version: Java HotSpot(TM) 64-Bit Server VM (mixed mode), Oracle Corporation
    Memory: 301689232 bytes (287 MB) / 939524096 bytes (896 MB) up to 2147483648 bytes (2048 MB)
    JVM Flags: 9 total; -XX:HeapDumpPath=MojangTricksIntelDriversForPerformance_javaw.exe_minecraft.exe.heapdump -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M
    FML: New FML!
    Loaded coremods (and transformers): Nothing
    Profiler Position: N/A (disabled)
    Player Count: 0 / 8; []
    Data Packs: mod:forge, vanilla, file/custom_recipe (incompatible), file/customizable armor stands (incompatible), file/dragon drops elytra (incompatible), file/more mob heads (incompatible), file/universal dyeing (incompatible), file/double shulker shells (incompatible), file/our_heads (incompatible), file/lost_villagers (incompatible)
    Type: Integrated Server (map_client.txt)
    Is Modded: Definitely; Client brand changed to 'forge'

 

HERES THE LINK TO THE WORLD WITH DATAPACKS: http://www.mediafire.com/file/yb8bcxfi7r950qo/Redstone_Testing2.zip/file

Edited April 1, 20196 yr by carterray31001
added world

Here's a temporary fix: remove the datapacks from the world, load up the world, and then put the datapacks back in the datapacks/ folder and then reload them.

To reload them, you type "/reload". If you're in singleplayer, you'll need to go to the escape menu, click on "Open to LAN", and make sure "Enable Cheats" is on. Then press "Start World" or something similar, and then type "/reload".

 

I think this issue has something to do with the fact that forge mods are listed when you type "/datapack list".

Provide your datapacks/world for testing. And before you say ANY data pack does this, no it's not any datapack. So please provide your specific data pack.

The datapacks are listed in the crash report, and they all came out as incompatible in the crash report. Most are from xisumavoid.com and one or two are ones that I made myself. “Our heads” is just a function to summon a villager that has custom heads. Again, all the datapacks list as incompable 

Provide your datapacks/world for testing.

it fails to upload everytime so ive uploaded it to media fire. heres the link.  I'll also edit and add the link. http://www.mediafire.com/file/yb8bcxfi7r950qo/Redstone_Testing2.zip/file