bevyengine/bevy · error

The target AssetId<{}>'s TypeId does not match the TypeId of

Error message

The target AssetId<{}>'s TypeId does not match the TypeId of this UntypedAssetId

What it means

Panics in UntypedAssetId::typed when try_typed fails: the stored TypeId of this untyped id does not match TypeId::of::<A>(). Converting would produce an AssetId<A> pointing at an asset of a different type, so the conversion is refused.

Source

Thrown at crates/bevy_asset/src/id.rs:241

    pub fn typed_debug_checked<A: Asset>(self) -> AssetId<A> {
        debug_assert_eq!(
            self.type_id(),
            TypeId::of::<A>(),
            "The target AssetId<{}>'s TypeId does not match the TypeId of this UntypedAssetId",
            core::any::type_name::<A>()
        );
        self.typed_unchecked()
    }

    /// Converts this to a "typed" [`AssetId`].
    ///
    /// # Panics
    ///
    /// Panics if the [`TypeId`] of `A` does not match the stored type id.
    #[inline]
    pub fn typed<A: Asset>(self) -> AssetId<A> {
        let Ok(id) = self.try_typed() else {
            panic!(
                "The target AssetId<{}>'s TypeId does not match the TypeId of this UntypedAssetId",
                core::any::type_name::<A>()
            )
        };

        id
    }

    /// Try to convert this to a "typed" [`AssetId`].
    #[inline]
    pub fn try_typed<A: Asset>(self) -> Result<AssetId<A>, UntypedAssetIdConversionError> {
        AssetId::try_from(self)
    }

    /// Returns the stored [`TypeId`] of the referenced [`Asset`].
    #[inline]
    pub fn type_id(&self) -> TypeId {
        match self {

View on GitHub (pinned to 396ca72708)

Solutions

1. Convert to the asset type the UntypedAssetId actually holds (inspect its type_id()/type name first)
2. Use try_typed() and handle UntypedAssetIdConversionError instead of the panicking typed()
3. Fix the upstream code that paired an untyped id with the wrong typed API call

When it happens

Trigger: Thrown at crates/bevy_asset/src/id.rs:241 when the library encounters an invalid state.

Common situations: See trigger scenarios.

AI-assisted analysis of bevyengine/bevy@396ca72708 (2026-08-20). Data as JSON: /api/errors/b511a6fe196dcc84. Report an issue: GitHub.