bevyengine/bevy · error · MissingAssetLoaderForTypeNameError

no `AssetLoader` found with the name '{type_name}'

Error message

no `AssetLoader` found with the name '{type_name}'

What it means

MissingAssetLoaderForTypeNameError — no registered AssetLoader is registered for the requested asset type name (payload type_name). Register a loader for that asset type, or load with the correct type parameter.

Source

Thrown at crates/bevy_asset/src/server/mod.rs:2325

}

/// An error that occurs while resolving an asset added by `add_async`.
#[derive(Error, Debug, Clone)]
#[error("An error occurred while resolving an asset added by `add_async`: {error}")]
pub struct AddAsyncError {
    error: Arc<dyn core::error::Error + Send + Sync + 'static>,
}

/// An error that occurs when an [`AssetLoader`] is not registered for a given extension.
#[derive(Error, Debug, Clone, PartialEq, Eq)]
#[error("no `AssetLoader` found{}", format_missing_asset_ext(extensions))]
pub struct MissingAssetLoaderForExtensionError {
    extensions: Vec<String>,
}

/// An error that occurs when an [`AssetLoader`] is not registered for a given [`core::any::type_name`].
#[derive(Error, Debug, Clone, PartialEq, Eq)]
#[error("no `AssetLoader` found with the name '{type_name}'")]
pub struct MissingAssetLoaderForTypeNameError {
    /// The type name that was not found.
    pub type_name: String,
}

/// An error that occurs when an [`AssetLoader`] is not registered for a given [`Asset`] [`TypeId`].
#[derive(Error, Debug, Clone, PartialEq, Eq)]
#[error("no `AssetLoader` found with the ID '{type_id:?}'")]
pub struct MissingAssetLoaderForTypeIdError {
    /// The type ID that was not found.
    pub type_id: TypeId,
}

fn format_missing_asset_ext(exts: &[String]) -> String {
    if !exts.is_empty() {
        format!(
            " for the following extension{}: {}",
            if exts.len() > 1 { "s" } else { "" },

View on GitHub (pinned to 227d3a6c66)

Solutions

  1. Register the loader via init_asset_loader before requesting it by name
  2. Verify the type name string exactly matches the loader's type path
Defensive patterns

Strategy: validation

When it happens

Trigger: Thrown at crates/bevy_asset/src/server/mod.rs:2310 when the library encounters an invalid state.

Common situations: See trigger scenarios.


AI-assisted analysis of bevyengine/bevy@227d3a6c66 (2026-08-20). Data as JSON: /api/errors/7d36783fa27233cd. Report an issue: GitHub.