bevyengine/bevy · error · ReflectCloneError

`{type_path}` cannot be made cloneable for `PartialReflect::

Error message

`{type_path}` cannot be made cloneable for `PartialReflect::reflect_clone`

What it means

ReflectCloneError::NotCloneable — the named type cannot be made cloneable for reflect_clone at all (its underlying Rust type does not implement Clone or a clone function cannot be provided). Rework the type or avoid cloning it via reflection.

Source

Thrown at crates/bevy_reflect/src/error.rs:23

/// An error that occurs when cloning a type via [`PartialReflect::reflect_clone`].
///
/// [`PartialReflect::reflect_clone`]: crate::PartialReflect::reflect_clone
#[derive(Clone, Debug, Error, PartialEq, Eq)]
pub enum ReflectCloneError {
    /// The type does not have a custom implementation for [`PartialReflect::reflect_clone`].
    ///
    /// [`PartialReflect::reflect_clone`]: crate::PartialReflect::reflect_clone
    #[error("`PartialReflect::reflect_clone` not implemented for `{type_path}`")]
    NotImplemented {
        /// The fully qualified path of the type that [`PartialReflect::reflect_clone`](crate::PartialReflect::reflect_clone) is not implemented for.
        type_path: Cow<'static, str>,
    },
    /// The type cannot be cloned via [`PartialReflect::reflect_clone`].
    ///
    /// This type should be returned when a type is intentionally opting out of reflection cloning.
    ///
    /// [`PartialReflect::reflect_clone`]: crate::PartialReflect::reflect_clone
    #[error("`{type_path}` cannot be made cloneable for `PartialReflect::reflect_clone`")]
    NotCloneable {
        /// The fully qualified path of the type that cannot be cloned via [`PartialReflect::reflect_clone`](crate::PartialReflect::reflect_clone).
        type_path: Cow<'static, str>,
    },
    /// The field cannot be cloned via [`PartialReflect::reflect_clone`].
    ///
    /// When [deriving `Reflect`], this usually means that a field marked with `#[reflect(ignore)]`
    /// is missing a `#[reflect(clone)]` attribute.
    ///
    /// This may be intentional if the field is not meant/able to be cloned.
    ///
    /// [`PartialReflect::reflect_clone`]: crate::PartialReflect::reflect_clone
    /// [deriving `Reflect`]: derive@crate::Reflect
    #[error(
        "field `{}` cannot be made cloneable for `PartialReflect::reflect_clone` (are you missing a `#[reflect(clone)]` attribute?)",
        full_path(.field, .variant.as_deref(), .container_type_path)
    )]
    FieldNotCloneable {

View on GitHub (pinned to 396ca72708)

Solutions

  1. Make the underlying fields Clone
  2. Add #[reflect(clone)] where required on fields
  3. Avoid reflect_clone for this type and clone through the concrete type
Defensive patterns

Strategy: fallback

When it happens

Trigger: Thrown at crates/bevy_reflect/src/error.rs:23 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/4336dfb8f5fa0961. Report an issue: GitHub.