I get an error when I copy "custom_vertex_attribute.rs" and run it. Is this a bug?

[shinda1111]

I copy "custom_vertex_attribute.rs" and run it.
https://github.com/bevyengine/bevy/blob/main/examples/shader/custom_vertex_attribute.rs
However, I get an error and can't run.

The error is below.

2023-08-22T20:39:49.675117Z INFO bevy_winit::system: Creating new window "App" (0v0)
2023-08-22T20:39:53.094806Z INFO bevy_render::renderer: AdapterInfo { name: "GeForce RTX 3060 Laptop GPU", vendor: 4318, device: 9504, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "462.75", backend: Vulkan }
2023-08-22T20:39:53.962621Z INFO bevy_diagnostic::system_information_diagnostics_plugin::internal: SystemInfo { os: "Windows 11 Home", kernel: "22621", cpu: "11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz", core_count: "8", memory: "15.8 GiB" }
2023-08-22T20:39:54.428290Z ERROR bevy_render::render_resource::pipeline_cache: failed to process shader:
error: no definition in scope for identifier: 'bevy_pbr::mesh_functions::get_model_matrix'
2023-08-22T20:58:51.531251Z INFO bevy_winit::system: Creating new window "App" (0v0)
2023-08-22T20:58:54.887773Z INFO bevy_render::renderer: AdapterInfo { name: "GeForce RTX 3060 Laptop GPU", vendor: 4318, device: 9504, device_type: DiscreteGpu, driver: "NVIDIA", driver_info: "462.75", backend: Vulkan }
2023-08-22T20:58:55.678757Z INFO bevy_diagnostic::system_information_diagnostics_plugin::internal: SystemInfo { os: "Windows 11 Home", kernel: "22621", cpu: "11th Gen Intel(R) Core(TM) i7-11800H @ 2.30GHz", core_count: "8", memory: "15.8 GiB" }
2023-08-22T20:58:56.267539Z ERROR bevy_render::render_resource::pipeline_cache: failed to process shader:
error: no definition in scope for identifier: 'bevy_pbr::mesh_functions::get_model_matrix'

Contents of Cargo.toml is that I used is below.

[package]
name = "bevy_test_shader"
version = "0.1.0"
edition = "2021"

[dependencies]
bevy="0.11.2"

In addition, if you copy bevy itself based on the tutorial and run the example, it works properly.
https://bevyengine.org/learn/book/getting-started/
Is this bug?

[rparrett]

The code you are copying is from bevy's main development branch, but you are depending on Bevy 0.11.2 from crates.io.

You can browse code from the most recent released version of Bevy by using the latest branch on GitHub.

[shinda1111]

I'm sorry for the late reply.
I tried that method and it worked.
Sorry for asking a question with a very elementary mistake.
Thank you very match!