{"record":{"id":"56acb2019c4dda6c","repo":"FyroxEngine/Fyrox","slug":"resource-error-for-untyped-resource-err","errorCode":null,"errorMessage":"Resource error for untyped resource: {err}","messagePattern":"Resource error for untyped resource: (.+?)","errorType":"console","errorClass":null,"httpStatus":null,"severity":"error","filePath":"fyrox-resource/src/untyped.rs","lineNumber":278,"sourceCode":"\nimpl Serialize for UntypedResource {\n    fn serialize<S>(&self, serializer: S) -> Result<S::Ok, S::Error>\n    where\n        S: serde::Serializer,\n    {\n        let header = self.lock();\n        if header.kind == ResourceKind::Embedded {\n            panic!(\"Embedded resources cannot be serialized.\");\n        }\n        header.uuid.serialize(serializer)\n    }\n}\n\nimpl Visit for UntypedResource {\n    fn visit(&mut self, name: &str, visitor: &mut Visitor) -> VisitResult {\n        let result = self.visit_with_type_uuid(name, None, visitor);\n        if let Err(err) = &result {\n            Log::err(format!(\"Resource error for untyped resource: {err}\"));\n            if let Ok(region) = visitor.enter_region(name) {\n                region.debug();\n            }\n            self.commit_error(PathBuf::default(), err.to_string());\n        }\n        result\n    }\n}\n\nimpl Display for UntypedResource {\n    fn fmt(&self, f: &mut Formatter<'_>) -> std::fmt::Result {\n        if let Some(header) = self.0.try_lock() {\n            Display::fmt(&header, f)\n        } else {\n            f.write_str(\"locked\")\n        }\n    }\n}","sourceCodeStart":260,"sourceCodeEnd":296,"githubUrl":"https://github.com/FyroxEngine/Fyrox/blob/76c91aad8eca488ce527b1af707be8b3b24ad72d/fyrox-resource/src/untyped.rs#L260-L296","documentation":"During (de)serialization, UntypedResource::visit delegates to visit_with_type_uuid, which resolves the concrete resource type by UUID. If that fails (unknown type UUID, corrupt data, wrong type), the error is logged, the visitor region is dumped for debugging, and the error is recorded on the resource state.","triggerScenarios":"Loading a scene/resource file containing an UntypedResource whose saved type UUID has no registered visitor, or whose embedded payload fails to deserialize.","commonSituations":"Renamed or removed resource types between engine versions loading old files; missing resource plugin/registration; hand-edited or corrupted .rgs files.","solutions":["Ensure the concrete resource type is registered with the resource system before loading","Re-save or fix the resource file so its type UUID matches a known type","Check engine version compatibility of the data file","Use the region debug dump to locate the malformed field"],"exampleFix":"null","handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"match untyped_resource.visit(name, visitor) {\n    Err(e) => {\n        // e carries the underlying VisitError; inspect type UUID registration\n    }\n    Ok(_) => {}\n}","preventionTips":["Register all concrete resource types before loading files","Keep resource type UUIDs stable across versions","Validate .rgs/resource files after upgrades or edits"],"tags":["serialization","resource","visitor"],"backgroundTag":"schema-validation-failed","analyzedSha":"76c91aad8eca488ce527b1af707be8b3b24ad72d","analyzedAt":"2026-09-10T16:04:01.633Z","contentChangedAt":"2026-09-10T16:04:01.633Z","schemaVersion":2},"datasetVersion":"2026-09-16T09:17:16.951Z"}