---- Minecraft Crash Report ---- // On the bright side, I bought you a teddy bear! Time: 11/13/21, 7:32 PM Description: Exception in server tick loop java.util.concurrent.CompletionException: net.minecraft.ReportedException: Feature placement at java.base/java.util.concurrent.CompletableFuture.encodeThrowable(CompletableFuture.java:314) at java.base/java.util.concurrent.CompletableFuture.completeThrowable(CompletableFuture.java:319) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1155) at java.base/java.util.concurrent.CompletableFuture$Completion.run(CompletableFuture.java:478) at net.minecraft.server.level.ChunkTaskPriorityQueueSorter.void lambda$message$1(java.lang.Runnable,net.minecraft.util.thread.ProcessorHandle)(ChunkTaskPriorityQueueSorter.java:58) at net.minecraft.util.thread.ProcessorMailbox.boolean pollTask()(ProcessorMailbox.java:91) at net.minecraft.util.thread.ProcessorMailbox.int pollUntil(it.unimi.dsi.fastutil.ints.Int2BooleanFunction)(ProcessorMailbox.java:146) at net.minecraft.util.thread.ProcessorMailbox.void run()(ProcessorMailbox.java:102) at java.base/java.util.concurrent.ForkJoinTask$RunnableExecuteAction.exec(ForkJoinTask.java:1434) at java.base/java.util.concurrent.ForkJoinTask.doExec(ForkJoinTask.java:295) at java.base/java.util.concurrent.ForkJoinPool$WorkQueue.topLevelExec(ForkJoinPool.java:1016) at java.base/java.util.concurrent.ForkJoinPool.scan(ForkJoinPool.java:1665) at java.base/java.util.concurrent.ForkJoinPool.runWorker(ForkJoinPool.java:1598) at java.base/java.util.concurrent.ForkJoinWorkerThread.run(ForkJoinWorkerThread.java:183) Caused by: net.minecraft.ReportedException: Feature placement at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletableFuture lambda$scheduleChunkGeneration$20(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,java.util.List)(ChunkMap.java:639) at com.mojang.datafixers.util.Either$Left.null map(null)(Either.java:38) at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletionStage lambda$scheduleChunkGeneration$22(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,com.mojang.datafixers.util.Either)(ChunkMap.java:621) at java.base/java.util.concurrent.CompletableFuture$UniCompose.tryFire(CompletableFuture.java:1146) ... 11 more Caused by: java.lang.NullPointerException: Cannot invoke "ddm.a(cao, cps, java.util.Random, gh)" because the return value of "java.util.function.Supplier.get()" is null at net.minecraft.world.level.levelgen.feature.structures.FeaturePoolElement.boolean place(net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.core.BlockPos,net.minecraft.core.BlockPos,net.minecraft.world.level.block.Rotation,net.minecraft.world.level.levelgen.structure.BoundingBox,java.util.Random,boolean)(FeaturePoolElement.java:75) at net.minecraft.world.level.levelgen.structure.PoolElementStructurePiece.void place(net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkGenerator,java.util.Random,net.minecraft.world.level.levelgen.structure.BoundingBox,net.minecraft.core.BlockPos,boolean)(PoolElementStructurePiece.java:88) at net.minecraft.world.level.levelgen.structure.PoolElementStructurePiece.void postProcess(net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkGenerator,java.util.Random,net.minecraft.world.level.levelgen.structure.BoundingBox,net.minecraft.world.level.ChunkPos,net.minecraft.core.BlockPos)(PoolElementStructurePiece.java:84) at net.minecraft.world.level.levelgen.structure.StructureStart.void placeInChunk(net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkGenerator,java.util.Random,net.minecraft.world.level.levelgen.structure.BoundingBox,net.minecraft.world.level.ChunkPos)(StructureStart.java:62) at net.minecraft.world.level.chunk.ChunkGenerator.com.mojang.serialization.Codec codec()(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.chunk.ChunkGenerator withSeed(long)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.void applyCarvers(net.minecraft.server.level.WorldGenRegion,long,net.minecraft.world.level.biome.BiomeManager,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.levelgen.GenerationStep$Carving)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.void applyBiomeDecoration(net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.StructureFeatureManager)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.void buildSurface(net.minecraft.server.level.WorldGenRegion,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.void spawnOriginalMobs(net.minecraft.server.level.WorldGenRegion)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.int getBaseHeight(int,int,net.minecraft.world.level.levelgen.Heightmap$Types,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.NoiseColumn getBaseColumn(int,int,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:259) at net.minecraft.world.level.chunk.ChunkGenerator.void lambda$applyBiomeDecoration$4(net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.levelgen.WorldgenRandom,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.ChunkPos,net.minecraft.world.level.levelgen.structure.StructureStart)(ChunkGenerator.java:259) at com.google.common.collect.ImmutableList.null forEach(null)(ImmutableList.java:422) at net.minecraft.world.level.chunk.ChunkGenerator.com.mojang.serialization.Codec codec()(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.chunk.ChunkGenerator withSeed(long)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.void applyCarvers(net.minecraft.server.level.WorldGenRegion,long,net.minecraft.world.level.biome.BiomeManager,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.levelgen.GenerationStep$Carving)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.void applyBiomeDecoration(net.minecraft.world.level.WorldGenLevel,net.minecraft.world.level.chunk.ChunkAccess,net.minecraft.world.level.StructureFeatureManager)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.void buildSurface(net.minecraft.server.level.WorldGenRegion,net.minecraft.world.level.StructureFeatureManager,net.minecraft.world.level.chunk.ChunkAccess)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.void spawnOriginalMobs(net.minecraft.server.level.WorldGenRegion)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.int getBaseHeight(int,int,net.minecraft.world.level.levelgen.Heightmap$Types,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkGenerator.net.minecraft.world.level.NoiseColumn getBaseColumn(int,int,net.minecraft.world.level.LevelHeightAccessor)(ChunkGenerator.java:258) at net.minecraft.world.level.chunk.ChunkStatus.java.util.concurrent.CompletableFuture lambda$static$11(net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,net.minecraft.server.level.ServerLevel,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.server.level.ThreadedLevelLightEngine,java.util.function.Function,java.util.List,net.minecraft.world.level.chunk.ChunkAccess,boolean)(ChunkStatus.java:134) at net.minecraft.world.level.chunk.ChunkStatus.java.util.concurrent.CompletableFuture generate(java.util.concurrent.Executor,net.minecraft.server.level.ServerLevel,net.minecraft.world.level.chunk.ChunkGenerator,net.minecraft.world.level.levelgen.structure.templatesystem.StructureManager,net.minecraft.server.level.ThreadedLevelLightEngine,java.util.function.Function,java.util.List,boolean)(ChunkStatus.java:274) at net.minecraft.server.level.ChunkMap.java.util.concurrent.CompletableFuture lambda$scheduleChunkGeneration$20(net.minecraft.world.level.ChunkPos,net.minecraft.server.level.ChunkHolder,net.minecraft.world.level.chunk.ChunkStatus,java.util.concurrent.Executor,java.util.List)(ChunkMap.java:627) ... 14 more A detailed walkthrough of the error, its code path and all known details is as follows: --------------------------------------------------------------------------------------- -- System Details -- Details: Minecraft Version: 1.18 Pre-release 1 Minecraft Version ID: 1.18-pre1 Operating System: Mac OS X (x86_64) version 10.16 Java Version: 16.0.1, Microsoft Java VM Version: OpenJDK 64-Bit Server VM (mixed mode), Microsoft Memory: 728196624 bytes (694 MiB) / 2147483648 bytes (2048 MiB) up to 2147483648 bytes (2048 MiB) CPUs: 8 Processor Vendor: Apple Inc. Processor Name: Apple M1 Identifier: Apple Inc. Family 0x1b588bb3 Model 0 Stepping 0 Microarchitecture: ARM64 SoC: Firestorm + Icestorm Frequency (GHz): 24.00 Number of physical packages: 1 Number of physical CPUs: 8 Number of logical CPUs: 8 Graphics card #0 name: Apple G13G Graphics card #0 vendor: Apple (0x106b) Graphics card #0 VRAM (MB): 0.00 Graphics card #0 deviceId: unknown Graphics card #0 versionInfo: unknown Memory slot #0 capacity (MB): 0.00 Memory slot #0 clockSpeed (GHz): 0.00 Memory slot #0 type: unknown Virtual memory max (MB): 16384.00 Virtual memory used (MB): 9305.11 Swap memory total (MB): 0.00 Swap memory used (MB): 0.00 JVM Flags: 8 total; -Xss1M -Xmx2G -XX:+UnlockExperimentalVMOptions -XX:+UseG1GC -XX:G1NewSizePercent=20 -XX:G1ReservePercent=20 -XX:MaxGCPauseMillis=50 -XX:G1HeapRegionSize=32M Player Count: 1 / 8; [add['monkeyboychuck'/45, l='ServerLevel[Third Try's the Charm?]', x=-1145.73, y=62.07, z=-791.00]] Data Packs: vanilla Type: Integrated Server (map_client.txt) Is Modded: Probably not. Client jar signature and brand is untouched; Server jar signature and brand is untouched