I spoke to the support of the server we are running on and they advised us to let you know of errors in the server's console which is filled with messages saying failed to create mob and a long mixin error message after it.
19:36:28] [Server thread/WARN] [minecraft/NaturalSpawner]: Failed to create mob
java.lang.NullPointerException: Cannot invoke "de.teamlapen.werewolves.api.entities.werewolf.WerewolfForm.getSize(net.minecraft.world.entity.Pose)" because "this.werewolfForm" is null
at de.teamlapen.werewolves.entities.werewolf.BasicWerewolfEntity.m6972(BasicWerewolfEntity.java:109) ~[Werewolves-1.20.1-1.1.0.1.jar%23222!/:1.1.0.1] {re:mixin,re:classloading}
Relevant log output
at net.minecraft.server.MinecraftServer.m_130011_(MinecraftServer.java:661) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,pl:mixin:APP:fastload.mixins.json:server.MinecraftServerMixin,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:serverpause.mixins.json:MinecraftServerAccessorMixin,pl:mixin:APP:serverpause.mixins.json:MinecraftServerMixin,pl:mixin:A}
at net.minecraft.server.MinecraftServer.m_206580_(MinecraftServer.java:251) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:mixin,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,re:classloading,pl:accesstransformer:B,xf:fml:xaeroworldmap:xaero_wm_minecraftserver,xf:fml:xaerominimap:xaero_minecraftserver,pl:mixin:APP:fastload.mixins.json:server.MinecraftServerMixin,pl:mixin:APP:citadel.mixins.json:MinecraftServerMixin,pl:mixin:APP:serverpause.mixins.json:MinecraftServerAccessorMixin,pl:mixin:APP:serverpause.mixins.json:MinecraftServerMixin,pl:mixin:A}
at java.lang.Thread.run(Thread.java:833) ~[?:?] {}
[19:36:28] [Server thread/WARN] [minecraft/NaturalSpawner]: Failed to create mob
java.lang.NullPointerException: Cannot invoke "de.teamlapen.werewolves.api.entities.werewolf.WerewolfForm.getSize(net.minecraft.world.entity.Pose)" because "this.werewolfForm" is null
at de.teamlapen.werewolves.entities.werewolf.BasicWerewolfEntity.m_6972_(BasicWerewolfEntity.java:109) ~[Werewolves-1.20.1-1.1.0.1.jar%23222!/:1.1.0.1] {re:mixin,re:classloading}
at net.minecraft.world.entity.Entity.getDimensionsForge(Entity.java:3496) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:computing_frames,pl:accesstransformer:B,re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:create.mixins.json:EntityMixin,pl:mixin:APP:railways-common.mixins.json:conductor_possession.MixinEntity,pl:mixin:APP:curios.mixins.json:AccessorEntity,pl:mixin:APP:vampirism.mixins.json:MixinEntity,pl:mixin:APP:sliceanddice.mixins.json:EntityMixin,pl:mixin:APP:create.mixins.json:ContraptionDriverInteractMixin,pl:mixin:A}
at net.minecraft.world.entity.Entity.<init>(Entity.java:261) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:computing_frames,pl:accesstransformer:B,re:mixin,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:create.mixins.json:EntityMixin,pl:mixin:APP:railways-common.mixins.json:conductor_possession.MixinEntity,pl:mixin:APP:curios.mixins.json:AccessorEntity,pl:mixin:APP:vampirism.mixins.json:MixinEntity,pl:mixin:APP:sliceanddice.mixins.json:EntityMixin,pl:mixin:APP:create.mixins.json:ContraptionDriverInteractMixin,pl:mixin:A}
at net.minecraft.world.entity.LivingEntity.<init>(LivingEntity.java:233) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:citadel.mixins.json:LivingEntityMixin,pl:mixin:APP:vinery-common.mixins.json:LivingEntityMixin,pl:mixin:APP:ars_nouveau.mixins.json:elytra.MixinLivingEntity,pl:mixin:APP:ars_nouveau.mixins.json:perks.PerkLivingEntity,pl:mixin:APP:werewolves.mixins.json:LivingEntityAccessor,pl:mixin:APP:curios.mixins.json:MixinLivingEntity,pl:mixin:APP:vampirism.mixins.json:LivingEntityAccessor,pl:mixin:APP:vampirism.mixins.json:MixinLivingEntity,pl:mixin:APP:create.mixins.json:CustomItemUseEffectsMixin,pl:mixin:APP:create.mixins.json:LavaSwimmingMixin,pl:mixin:APP:create.mixins.json:accessor.LivingEntityAccessor,pl:mixin:A}
at net.minecraft.world.entity.Mob.<init>(Mob.java:123) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:ars_nouveau.mixins.json:jar.MobAccessorMixin,pl:mixin:APP:meadow-common.mixins.json:variant.MobVariantMixin,pl:mixin:APP:moremobvariants.mixins.json:MobVariantsMixin,pl:mixin:APP:vampirism.mixins.json:MixinMobEntity,pl:mixin:A}
at net.minecraft.world.entity.PathfinderMob.<init>(PathfinderMob.java:14) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:computing_frames,re:mixin,re:classloading}
at de.teamlapen.vampirism.entity.VampirismEntity.<init>(VampirismEntity.java:74) ~[Vampirism-1.20.1-1.9.1.jar%23221!/:1.9.1] {re:classloading}
at de.teamlapen.werewolves.entities.werewolf.WerewolfBaseEntity.<init>(WerewolfBaseEntity.java:24) ~[Werewolves-1.20.1-1.1.0.1.jar%23222!/:1.1.0.1] {re:classloading}
at de.teamlapen.werewolves.entities.werewolf.BasicWerewolfEntity.<init>(BasicWerewolfEntity.java:98) ~[Werewolves-1.20.1-1.1.0.1.jar%23222!/:1.1.0.1] {re:mixin,re:classloading}
at de.teamlapen.werewolves.entities.werewolf.BasicWerewolfEntity$Survivalist.<init>(BasicWerewolfEntity.java:524) ~[Werewolves-1.20.1-1.1.0.1.jar%23222!/:1.1.0.1] {re:classloading}
at net.minecraft.world.entity.EntityType.m_20615_(EntityType.java:525) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:mixin,xf:fml:forge:forge_method_redirector,re:classloading,xf:fml:forge:forge_method_redirector,pl:mixin:APP:architectury-common.mixins.json:inject.MixinEntityType,pl:mixin:A}
at net.minecraft.world.level.NaturalSpawner.m_46988_(NaturalSpawner.java:231) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:classloading,xf:fml:forge:forge_method_redirector}
at net.minecraft.world.level.NaturalSpawner.m_47038_(NaturalSpawner.java:169) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:classloading,xf:fml:forge:forge_method_redirector}
at net.minecraft.world.level.NaturalSpawner.m_47045_(NaturalSpawner.java:118) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:classloading,xf:fml:forge:forge_method_redirector}
at net.minecraft.world.level.NaturalSpawner.m_47029_(NaturalSpawner.java:108) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:classloading,xf:fml:forge:forge_method_redirector}
at net.minecraft.server.level.ServerChunkCache.m_8490_(ServerChunkCache.java:358) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.level.ServerChunkCache.m_201698_(ServerChunkCache.java:312) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:classloading,pl:accesstransformer:B}
at net.minecraft.server.level.ServerLevel.m_8793_(ServerLevel.java:305) ~[server-1.20.1-20230612.114412-srg.jar%23227!/:?] {re:mixin,pl:accesstransformer:B,re:computing_frames,pl:accesstransformer:B,re:classloading,pl:accesstransformer:B,pl:mixin:APP:citadel.mixins.json:ServerLevelMixin,pl:mixin:APP:sereneseasons.mixins.json:MixinServerLevel,pl:mixin:APP:create.mixins.json:accessor.ServerLevelAccessor,pl:mixin:A}
Reproduce steps
Go into the werewolf biome........ most of the time you will not see any werewolves but then one will appear at times.... then you go to the console logs and see the errors where it was apparently trying to spawn a werewolf.
Minecraft Version
1.20.x
Forge Version
47.1.44
Vampirism Version
1.9.1
Werewolves Version
1.1.0.1
Modpack
No response
Singleplayer/Multiplayer
Server
What happened?
I spoke to the support of the server we are running on and they advised us to let you know of errors in the server's console which is filled with messages saying failed to create mob and a long mixin error message after it.
19:36:28] [Server thread/WARN] [minecraft/NaturalSpawner]: Failed to create mob java.lang.NullPointerException: Cannot invoke "de.teamlapen.werewolves.api.entities.werewolf.WerewolfForm.getSize(net.minecraft.world.entity.Pose)" because "this.werewolfForm" is null at de.teamlapen.werewolves.entities.werewolf.BasicWerewolfEntity.m6972(BasicWerewolfEntity.java:109) ~[Werewolves-1.20.1-1.1.0.1.jar%23222!/:1.1.0.1] {re:mixin,re:classloading}
Relevant log output
Reproduce steps
Go into the werewolf biome........ most of the time you will not see any werewolves but then one will appear at times.... then you go to the console logs and see the errors where it was apparently trying to spawn a werewolf.
Other relevant mods
No response