{"record":{"id":"8691ccae170de516","repo":"bevyengine/bevy","slug":"attempted-to-apply-type-with-from-size-size-to-a","errorCode":null,"errorMessage":"attempted to apply type with {from_size} size to a type with {to_size} size","messagePattern":"attempted to apply type with (.+?) size to a type with (.+?) size","errorType":"exception","errorClass":"ApplyError","httpStatus":null,"severity":"error","filePath":"crates/bevy_reflect/src/reflect.rs","lineNumber":50,"sourceCode":"    #[error(\"enum variant `{variant_name}` doesn't have a field named `{field_name}`\")]\n    /// Enum variant that we tried to apply to was missing a field.\n    MissingEnumField {\n        /// Name of the enum variant.\n        variant_name: Box<str>,\n        /// Name of the missing field.\n        field_name: Box<str>,\n    },\n\n    #[error(\"`{from_type}` is not `{to_type}`\")]\n    /// Tried to apply incompatible types.\n    MismatchedTypes {\n        /// Type of the value we attempted to apply.\n        from_type: Box<str>,\n        /// Type we attempted to apply the value to.\n        to_type: Box<str>,\n    },\n\n    #[error(\"attempted to apply type with {from_size} size to a type with {to_size} size\")]\n    /// Attempted to apply an [array-like] type to another of different size, e.g. a [u8; 4] to [u8; 3].\n    ///\n    /// [array-like]: crate::array::Array\n    DifferentSize {\n        /// Size of the value we attempted to apply, in elements.\n        from_size: usize,\n        /// Size of the type we attempted to apply the value to, in elements.\n        to_size: usize,\n    },\n\n    #[error(\"variant with name `{variant_name}` does not exist on enum `{enum_name}`\")]\n    /// The enum we tried to apply to didn't contain a variant with the give name.\n    UnknownVariant {\n        /// Name of the enum.\n        enum_name: Box<str>,\n        /// Name of the missing variant.\n        variant_name: Box<str>,\n    },","sourceCodeStart":32,"sourceCodeEnd":68,"githubUrl":"https://github.com/bevyengine/bevy/blob/396ca727080776bd313bb892423b7d94e03b81b4/crates/bevy_reflect/src/reflect.rs#L32-L68","documentation":"ApplyError::DifferentSize — try_apply on array-like values (arrays/lists) found differing element counts, e.g. applying [u8; 4] onto [u8; 3]. Payloads: from_size and to_size. Source and destination must have equal sizes.","triggerScenarios":"Thrown at crates/bevy_reflect/src/reflect.rs:50 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Ensure both array-like values have the same length","Truncate or pad the source data to the target's length before applying"],"exampleFix":null,"handlingStrategy":"validation","validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"396ca727080776bd313bb892423b7d94e03b81b4","analyzedAt":"2026-08-20T16:12:39.808Z","contentChangedAt":"2026-08-20T16:12:39.808Z","schemaVersion":2},"datasetVersion":"2026-09-14T05:17:10.506Z"}