{"record":{"id":"6785a8ce8dba1d36","repo":"bevyengine/bevy","slug":"asset-source-0-does-not-have-a-processed-asset-6785a8","errorCode":null,"errorMessage":"Asset Source '{0}' does not have a processed AssetWriter.","messagePattern":"Asset Source '(.+?)' does not have a processed AssetWriter\\.","errorType":"exception","errorClass":"MissingProcessedAssetWriterError","httpStatus":null,"severity":"error","filePath":"crates/bevy_asset/src/io/source.rs","lineNumber":667,"sourceCode":"\n/// An error returned when an [`AssetSource`] does not exist for a given id.\n#[derive(Error, Debug, Clone, PartialEq, Eq)]\n#[error(\"Asset Source '{0}' does not exist\")]\npub struct MissingAssetSourceError(AssetSourceId<'static>);\n\n/// An error returned when an [`AssetWriter`](crate::io::AssetWriter) does not exist for a given id.\n#[derive(Error, Debug, Clone)]\n#[error(\"Asset Source '{0}' does not have an AssetWriter.\")]\npub struct MissingAssetWriterError(AssetSourceId<'static>);\n\n/// An error returned when a processed [`AssetReader`](crate::io::AssetReader) does not exist for a given id.\n#[derive(Error, Debug, Clone, PartialEq, Eq)]\n#[error(\"Asset Source '{0}' does not have a processed AssetReader.\")]\npub struct MissingProcessedAssetReaderError(AssetSourceId<'static>);\n\n/// An error returned when a processed [`AssetWriter`](crate::io::AssetWriter) does not exist for a given id.\n#[derive(Error, Debug, Clone)]\n#[error(\"Asset Source '{0}' does not have a processed AssetWriter.\")]\npub struct MissingProcessedAssetWriterError(AssetSourceId<'static>);\n\nconst MISSING_DEFAULT_SOURCE: &str =\n    \"A default AssetSource is required. Add one to `AssetSourceBuilders`\";\n","sourceCodeStart":649,"sourceCodeEnd":672,"githubUrl":"https://github.com/bevyengine/bevy/blob/396ca727080776bd313bb892423b7d94e03b81b4/crates/bevy_asset/src/io/source.rs#L649-L672","documentation":"MissingProcessedAssetWriterError: a processed AssetWriter was requested for an asset source that does not define one. The processing pipeline cannot write processed asset output for this source.","triggerScenarios":"Thrown at crates/bevy_asset/src/io/source.rs:667 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":["Add a processed writer (with_processed_writer) when registering the asset source","Ensure the asset processor is configured to run for that source","Skip processed writes for sources intentionally lacking a processing pipeline"],"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":"2026-09-14T00:17:10.932Z"}