AssetServer does not exist in the `World` when trying to use dynamic asset

[zwazel]

Hello! I'm trying to use the DynamicAsset feature. Until now I've been only using the not dynamic asset loading features, and everything worked fine. For now I'm just trying to load a png as a StandardMaterial, as shown in one of your examples.

So I changed the cargo.toml file to add the dynamic feature:

bevy_asset_loader = { version = "0.16.0", features = ["standard_dynamic_assets","3d", "2d"] 

and added the my_assets.assets.ron file inside the assets folder:

({
    "texture.floor": StandardMaterial (
        path: "textures/prototyping/green/texture_09.png",
    ),
})

I've defined my resource:

#[derive(AssetCollection, Resource, Default, Reflect)]
#[reflect(Resource)]
struct WorldTextures {
    #[asset(key = "texture.floor")]
    floor_texture: Handle<StandardMaterial>,
}

added it to the loading state

app.add_dynamic_collection_to_loading_state::<_, StandardDynamicAssetCollection>(
                LoadState::LoadingMapAndSetupResources,
                "my_assets.assets.ron",
            )
            .add_collection_to_loading_state::<_, WorldTextures>(
                LoadState::LoadingMapAndSetupResources,
            );

Did I miss anything? Because anytime I try to start the game i get a runtime error saying the AssetServer doesnt exist. I only get this error when enabling the dynamic asset feature. the error:

C:/Users/zwaze/.cargo/bin/cargo.exe run --color=always --package project-getting-control --bin main windowed
    Finished dev [optimized + debuginfo] target(s) in 0.29s
     Running `target\debug\main.exe windowed`
thread 'main' panicked at 'Requested resource bevy_asset::asset_server::AssetServer does not exist in the `World`. 
                Did you forget to add it using `app.insert_resource` / `app.init_resource`? 
                Resources are also implicitly added via `app.add_event`,
                and can be added by plugins.', C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_asset-0.10.1\src\assets.rs:329:43
stack backtrace:
   0: std::panicking::begin_panic_handler
             at /rustc/af06dce64bf87ea9206bdf6cff61c144b9ce8458/library\std\src\panicking.rs:577
   1: core::panicking::panic_fmt
             at /rustc/af06dce64bf87ea9206bdf6cff61c144b9ce8458/library\core\src\panicking.rs:67
   2: bevy_ecs::world::World::resource
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_ecs-0.10.1\src\world\mod.rs:968
   3: bevy_asset::assets::impl$2::add_asset<bevy_asset_loader::standard_dynamic_asset::StandardDynamicAssetCollection>
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_asset-0.10.1\src\assets.rs:338
   4: bevy_common_assets::ron::impl$0::build<bevy_asset_loader::standard_dynamic_asset::StandardDynamicAssetCollection>
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_common_assets-0.6.0\src\ron.rs:17
   5: bevy_app::app::App::add_boxed_plugin
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_app-0.10.1\src\app.rs:767
   6: bevy_app::app::App::add_plugin<bevy_common_assets::ron::RonAssetPlugin<bevy_asset_loader::standard_dynamic_asset::StandardDynamicAssetCollection> >
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_app-0.10.1\src\app.rs:747
   7: bevy_asset_loader::loading_state::LoadingState<project_getting_control::LoadState>::build<project_getting_control::LoadState>
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_asset_loader-0.16.0\src\loading_state.rs:346
   8: bevy_asset_loader::loading_state::impl$5::add_loading_state<project_getting_control::LoadState>
             at C:\Users\zwaze\.cargo\registry\src\index.crates.io-6f17d22bba15001f\bevy_asset_loader-0.16.0\src\loading_state.rs:661
   9: main::main
             at .\src\bin\main.rs:67
  10: core::ops::function::FnOnce::call_once
             at /rustc/af06dce64bf87ea9206bdf6cff61c144b9ce8458\library\core\src\ops\function.rs:250
note: Some details are omitted, run with `RUST_BACKTRACE=full` for a verbose backtrace.
error: process didn't exit successfully: `target\debug\main.exe windowed` (exit code: 101)

Process finished with exit code 101

[NiklasEi]

Are you maybe adding the loading state before adding the default plugins?

[zwazel]

good call, you're right. Thanks!

[NiklasEi]

Let's leave it open until I improved the readme. It still includes an example where the default plugins are added afterwards.

[NiklasEi]

The example code was fine because it did not add dynamic assets. But I added a note about the ordering in the readme and generally moved the default plugins to the front in all example code.