coding imports not working

hi whenever i use this code it tells me to fix my imports but they are fine from what I can tell 

the code in question

package net.mcreator.cbsrpg.entity;

import net.minecraft.entity.Entity;
import net.minecraft.entity.player.PlayerEntity;
import net.minecraft.world.World;

public class AnimatedBeamEntity extends Entity {

    private PlayerEntity player;

    public AnimatedBeamEntity(World world) {
        super(world);
    }

    // Getter and setter methods for player entity
    public void setPlayer(PlayerEntity player) {
        this.player = player;
    }

    // Override onUpdate method
    @Override
    public void onUpdate() {
        super.onUpdate(); // Call superclass onUpdate method
        if (player != null) {
            // Calculate deltas and set rotation
            double deltaX = player.getPosX() - this.getPosX();
            double deltaY = player.getPosY() - this.getPosY();
            double deltaZ = player.getPosZ() - this.getPosZ();
            float yaw = (float) Math.atan2(deltaZ, deltaX) * (180F / (float) Math.PI) - 90.0F;
            float pitch = (float) (-Math.atan2(deltaY, Math.sqrt(deltaX * deltaX + deltaZ * deltaZ)) * (180F / Math.PI));
            this.rotationYaw = yaw;
            this.rotationPitch = pitch;
            this.setRotation(yaw, pitch);
        }
    }
}