{"record":{"id":"66b56c18074452d2","repo":"FyroxEngine/Fyrox","slug":"attempt-to-get-reference-to-resource-data-which-fa","errorCode":null,"errorMessage":"Attempt to get reference to resource data which failed to load! Type {}. Path: {path}. Error: {error:?}","messagePattern":"Attempt to get reference to resource data which failed to load! Type (.+?)\\. Path: (.+?)\\. Error: (.+?)","errorType":"panic","errorClass":null,"httpStatus":null,"severity":"error","filePath":"fyrox-resource/src/lib.rs","lineNumber":619,"sourceCode":"                    std::any::type_name::<T>()\n                )\n            }\n            ResourceState::Pending { .. } => {\n                panic!(\n                    \"Attempt to get reference to resource data while it is loading! Type {}\",\n                    std::any::type_name::<T>()\n                )\n            }\n            ResourceState::LoadError {\n                ref path,\n                ref error,\n            } => {\n                let path = if path.as_os_str().is_empty() {\n                    \"Unknown\".to_string()\n                } else {\n                    format!(\"{path:?}\")\n                };\n                panic!(\"Attempt to get reference to resource data which failed to load! Type {}. Path: {path}. Error: {error:?}\", std::any::type_name::<T>())\n            }\n            ResourceState::Ok { ref data } => (data.inner_ref() as &dyn Any)\n                .downcast_ref()\n                .expect(\"Type mismatch!\"),\n        }\n    }\n}\n\nimpl<T> DerefMut for ResourceDataRef<'_, T>\nwhere\n    T: TypedResourceData,\n{\n    fn deref_mut(&mut self) -> &mut Self::Target {\n        let header = &mut *self.guard;\n        match header.state {\n            ResourceState::Unloaded => {\n                panic!(\"Attempt to get reference to resource data while it is unloaded!\")\n            }","sourceCodeStart":601,"sourceCodeEnd":637,"githubUrl":"https://github.com/FyroxEngine/Fyrox/blob/76c91aad8eca488ce527b1af707be8b3b24ad72d/fyrox-resource/src/lib.rs#L601-L637","documentation":"Deref on Resource<T> panics when the resource is in the LoadError state: the load failed, so there is no data to hand out. The panic includes the resource type, the (possibly 'Unknown') path, and the underlying error for diagnosis.","triggerScenarios":"Dereferencing a handle returned by request::<T>() for a file that does not exist, failed to parse (bad/corrupt format), or whose loader errored (e.g. unsupported image format, malformed scene).","commonSituations":"Typos in asset paths; assets missing from the build/deployment; files saved in an unsupported version/format; permission or encoding errors when loading.","solutions":["Read the embedded path and error from the panic/state and fix the asset (correct path, valid format).","Check state() for LoadError before dereferencing and handle the failure (fallback asset, error UI, skip).","Inspect the ResourceState::LoadError { path, error } fields programmatically to log a precise diagnosis instead of crashing."],"exampleFix":"// before\nlet tex = rm.request::<Texture>(path)?;\nlet data = tex.data_ref(); // panics if load failed\n// after\nlet tex = rm.request::<Texture>(path)?;\nif let ResourceState::LoadError { error, .. } = &*tex.state() {\n    Log::writeln(MessageKind::Error, format!(\"texture load failed: {error:?}\"));\n} else {\n    let data = tex.data_ref();\n}","handlingStrategy":"fallback","validationCode":"if let ResourceState::LoadError { path, error } = &*resource.state() {\n    log_error(format!(\"load failed: {path:?}: {error:?}\"));\n}","typeGuard":"fn load_failed<T>(r: &Resource<T>) -> bool {\n    matches!(&*r.state(), ResourceState::LoadError { .. })\n}","tryCatchPattern":null,"preventionTips":["Check state() for LoadError before any data access and provide a fallback asset.","Validate asset paths and formats in your build pipeline so missing/corrupt files fail early.","Log ResourceState::LoadError details (path + error) during development."],"tags":["panic","resource-loading","io","load-error"],"backgroundTag":"file-read-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"}