Common Issues

See below for some commonly encountered issues when creating an entity.

I get a crash when spawning my entity

If you're getting this crash when summoning your entity:

java.lang.NullPointerException: Cannot invoke "net.minecraft.client.renderer.entity.EntityRenderer.shouldRender(net.minecraft.world.entity.Entity, net.minecraft.client.renderer.culling.Frustum, double, double, double)" because "entityrenderer" is null

Then you forgot to register your entity renderer.

I get an error when attempting to /summon my entity

If you get an in-game error when attempting to /summon your entity, then you haven't registered your entity's attributes.

See your modloader's documentation for registering entity attributes; or ask in a general modding support location