Your model name is invalid!

nvm the problem was the // thingies at the very top (no one should go through this frustration)

the name in the code is different from the filename

I tried the tutorial, I changed the version, I changed the name in the modeler but the problem continues

// Made with Blockbench 4.2.1

// Exported for Minecraft version 1.7 - 1.12

// Paste this class into your mod and generate all required imports

public class something_name extends ModelBase {

    private final ModelRenderer head;

    private final ModelRenderer leg;

    private final ModelRenderer chest;

    private final ModelRenderer bb_main;

    private final ModelRenderer leftarm_r1;

    private final ModelRenderer rightarm_r1;

    public something_name() {

        textureWidth = 16;

        textureHeight = 16;

        head = new ModelRenderer(this);

        head.setRotationPoint(0.0F, 0.0F, 0.0F);

        head.cubeList.add(new ModelBox(head, 0, 0, -3.0F, -12.0F, -3.0F, 5, 6, 5, 0.0F, false));

        head.cubeList.add(new ModelBox(head, 32, 0, -3.0F, -8.0F, -4.0F, 7, 8, 7, 0.5F, false));

        leg = new ModelRenderer(this);

        leg.setRotationPoint(0.0F, 0.0F, 0.0F);

        leg.cubeList.add(new ModelBox(leg, 16, 16, -3.0F, 7.0F, -3.0F, 5, 17, 5, 0.0F, false));

        leg.cubeList.add(new ModelBox(leg, 16, 16, -2.0F, 2.0F, -2.0F, 3, 5, 3, 0.0F, false));

        leg.cubeList.add(new ModelBox(leg, 16, 32, -4.0F, 0.0F, -2.0F, 8, 12, 4, 0.25F, false));

        chest = new ModelRenderer(this);

        chest.setRotationPoint(0.0F, 24.0F, 0.0F);

        chest.cubeList.add(new ModelBox(chest, 0, 0, -6.0F, -27.0F, -3.0F, 11, 5, 5, 0.0F, false));

        bb_main = new ModelRenderer(this);

        bb_main.setRotationPoint(0.0F, 24.0F, 0.0F);

        bb_main.cubeList.add(new ModelBox(bb_main, 0, 0, -2.0F, -30.0F, -2.0F, 3, 3, 3, 0.0F, false));

        leftarm_r1 = new ModelRenderer(this);

        leftarm_r1.setRotationPoint(0.0F, 0.0F, 0.0F);

        bb_main.addChild(leftarm_r1);

        setRotationAngle(leftarm_r1, 0.0F, 0.0F, -0.3491F);

        leftarm_r1.cubeList.add(new ModelBox(leftarm_r1, 0, 0, 13.0F, -20.0F, -2.0F, 3, -4, 3, 0.0F, false));

        rightarm_r1 = new ModelRenderer(this);

        rightarm_r1.setRotationPoint(0.0F, 0.0F, 0.0F);

        bb_main.addChild(rightarm_r1);

        setRotationAngle(rightarm_r1, 0.0F, 0.0F, 0.2618F);

        rightarm_r1.cubeList.add(new ModelBox(rightarm_r1, 0, 0, -15.0F, -17.0F, -2.0F, 3, -8, 3, 0.0F, false));

    }

    @Override

    public void render(Entity entity, float f, float f1, float f2, float f3, float f4, float f5) {

        head.render(f5);

        leg.render(f5);

        chest.render(f5);

        bb_main.render(f5);

    }

    public void setRotationAngle(ModelRenderer modelRenderer, float x, float y, float z) {

        modelRenderer.rotateAngleX = x;

        modelRenderer.rotateAngleY = y;

        modelRenderer.rotateAngleZ = z;

    }

}

I'm making a car for my mod, BUT when I try to import the corresponding model I get the error "Your model name is invalid".

here is the java code: 

// Made with Blockbench 4.9.4

// Exported for Minecraft version 1.17 or later with Mojang mappings

// Paste this class into your mod and generate all required imports

public class car<T extends Entity> extends EntityModel<T> {

    // This layer location should be baked with EntityRendererProvider.Context in the entity renderer and passed into this model's constructor

    public static final ModelLayerLocation LAYER_LOCATION = new ModelLayerLocation(new ResourceLocation("modid", "car"), "main");

    private final ModelPart bb_main;

    public car(ModelPart root) {

        this.bb_main = root.getChild("bb_main");

    }

    public static LayerDefinition createBodyLayer() {

        MeshDefinition meshdefinition = new MeshDefinition();

        PartDefinition partdefinition = meshdefinition.getRoot();

        PartDefinition bb_main = partdefinition.addOrReplaceChild("bb_main", CubeListBuilder.create().texOffs(0, 0).addBox(15.0F, -15.0F, -24.0F, 1.0F, 10.0F, 48.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(-16.0F, -15.0F, -24.0F, 1.0F, 10.0F, 48.0F, new CubeDeformation(0.0F))

        .texOffs(0, 60).addBox(-10.0F, -14.0F, -25.0F, 20.0F, 9.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(0, 123).addBox(-15.0F, -20.0F, -9.0F, 30.0F, 5.0F, 0.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(-15.0F, -15.0F, -24.0F, 30.0F, 10.0F, 16.0F, new CubeDeformation(0.0F))

        .texOffs(118, 123).addBox(-15.0F, -14.0F, -25.0F, 4.0F, 4.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(118, 123).addBox(11.0F, -14.0F, -25.0F, 4.0F, 4.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(0, 110).addBox(-15.0F, -9.0F, -25.0F, 4.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(0, 110).addBox(11.0F, -9.0F, -25.0F, 4.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(81, 62).addBox(12.0F, -14.0F, 24.0F, 3.0F, 5.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(81, 62).addBox(-15.0F, -14.0F, 24.0F, 3.0F, 5.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(0, 110).addBox(-15.0F, -8.0F, 24.0F, 3.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(0, 110).addBox(12.0F, -8.0F, 24.0F, 3.0F, 2.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(22, 61).addBox(-3.0F, -7.0F, 24.0F, 6.0F, 3.0F, 1.0F, new CubeDeformation(0.0F))

        .texOffs(102, 52).addBox(-15.0F, -4.0F, -21.0F, 5.0F, 4.0F, 8.0F, new CubeDeformation(0.0F))

        .texOffs(102, 52).addBox(-15.0F, -4.0F, 13.0F, 5.0F, 4.0F, 8.0F, new CubeDeformation(0.0F))

        .texOffs(102, 52).addBox(10.0F, -4.0F, 13.0F, 5.0F, 4.0F, 8.0F, new CubeDeformation(0.0F))

        .texOffs(102, 52).addBox(10.0F, -4.0F, -21.0F, 5.0F, 4.0F, 8.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(16.0F, -11.0F, -23.0F, 1.0F, 7.0F, 12.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(16.0F, -11.0F, 11.0F, 1.0F, 7.0F, 12.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(-17.0F, -11.0F, 11.0F, 1.0F, 7.0F, 12.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(-17.0F, -11.0F, -23.0F, 1.0F, 7.0F, 12.0F, new CubeDeformation(0.0F))

        .texOffs(0, 60).addBox(-0.5F, -16.0F, -24.0F, 1.0F, 1.0F, 3.0F, new CubeDeformation(0.0F))

        .texOffs(0, 0).addBox(-15.0F, -15.0F, 8.0F, 30.0F, 10.0F, 16.0F, new CubeDeformation(0.0F))

        .texOffs(0, 73).addBox(-16.0F, -5.0F, -24.0F, 32.0F, 1.0F, 48.0F, new CubeDeformation(0.0F))

        .texOffs(52, 61).addBox(-10.0F, -5.0F, 22.0F, 2.0F, 2.0F, 3.0F, new CubeDeformation(0.0F))

        .texOffs(52, 61).addBox(8.0F, -5.0F, 22.0F, 2.0F, 2.0F, 3.0F, new CubeDeformation(0.0F)), PartPose.offset(0.0F, 24.0F, 0.0F));

        return LayerDefinition.create(meshdefinition, 128, 128);

    }

    @Override

    public void setupAnim(T entity, float limbSwing, float limbSwingAmount, float ageInTicks, float netHeadYaw, float headPitch) {

    }

    @Override

    public void renderToBuffer(PoseStack poseStack, VertexConsumer vertexConsumer, int packedLight, int packedOverlay, float red, float green, float blue, float alpha) {

        bb_main.render(poseStack, vertexConsumer, packedLight, packedOverlay, red, green, blue, alpha);

    }

}