Hi, Everyone! New to Modding here! I was trying to add a new mob in the game, but it seemed to crash whenever I tried spawning it in. Can someone explain what went wrong? Here's the crash report:

---- Minecraft Crash Report ----
// I let you down. Sorry :(

Time: 3/16/21 10:00 AM
Description: Rendering entity in world

java.lang.NullPointerException: Rendering entity in world
   at java.util.Objects.requireNonNull(Objects.java:203) ~[?:1.8.0_261] {}
   at java.util.Optional.<init>(Optional.java:96) ~[?:1.8.0_261] {}
   at java.util.Optional.of(Optional.java:108) ~[?:1.8.0_261] {}
   at net.minecraft.client.renderer.RenderState$TextureState.<init>(RenderState.java:618) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.RenderType.getEntityCutoutNoCull(RenderType.java:93) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.RenderType.getEntityCutoutNoCull(RenderType.java:98) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.model.Model.getRenderType(Model.java:26) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.entity.LivingRenderer.func_230496_a_(LivingRenderer.java:140) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.entity.LivingRenderer.render(LivingRenderer.java:116) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.entity.MobRenderer.render(MobRenderer.java:40) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.entity.MobRenderer.render(MobRenderer.java:20) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.entity.EntityRendererManager.renderEntityStatic(EntityRendererManager.java:252) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.WorldRenderer.renderEntity(WorldRenderer.java:1219) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.WorldRenderer.updateCameraAndRender(WorldRenderer.java:1027) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.GameRenderer.renderWorld(GameRenderer.java:619) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.renderer.GameRenderer.updateCameraAndRender(GameRenderer.java:437) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.Minecraft.runGameLoop(Minecraft.java:1002) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.Minecraft.run(Minecraft.java:612) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:accesstransformer:B,pl:runtimedistcleaner:A}
   at net.minecraft.client.main.Main.main(Main.java:184) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {re:classloading,pl:runtimedistcleaner:A}
   at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method) ~[?:1.8.0_261] {}
   at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) ~[?:1.8.0_261] {}
   at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) ~[?:1.8.0_261] {}
   at java.lang.reflect.Method.invoke(Method.java:498) ~[?:1.8.0_261] {}
   at net.minecraftforge.userdev.FMLUserdevClientLaunchProvider.lambda$launchService$0(FMLUserdevClientLaunchProvider.java:52) ~[forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandlerDecorator.launch(LaunchServiceHandlerDecorator.java:37) [modlauncher-8.0.6.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:54) [modlauncher-8.0.6.jar:?] {}
   at cpw.mods.modlauncher.LaunchServiceHandler.launch(LaunchServiceHandler.java:72) [modlauncher-8.0.6.jar:?] {}
   at cpw.mods.modlauncher.Launcher.run(Launcher.java:82) [modlauncher-8.0.6.jar:?] {}
   at cpw.mods.modlauncher.Launcher.main(Launcher.java:66) [modlauncher-8.0.6.jar:?] {}
   at net.minecraftforge.userdev.LaunchTesting.main(LaunchTesting.java:105) [forge-1.16.4-35.1.4_mapped_snapshot_20201028-1.16.3-recomp.jar:?] {}

 

Have you set up a renderer for the entity?

Ah, I see where the problem was! I didn't set up my Renderer correctly! I forgot to set up my SetEntityTexture properly and was set to return Null! Sorry for the inconvenience! I was following a tutorial on Youtube so I was just blindly copying what they're doing! Now my entity can properly spawn in without crashing my world!

 

Though it does look funky, but I think it has to do with the animation. The model is using the Rotation Angles of an Enderman, with some tweeked adjustments, so I just need to code it so that it animated properly!