{"record":{"id":"8bc02cc46ef77257","repo":"clockworklabs/SpacetimeDB","slug":"enum-type-does-not-have-a-spacetimedb-type-att","errorCode":null,"errorMessage":"Enum {type} does not have a [SpacetimeDB.Type] attribute","messagePattern":"Enum (.+?) does not have a \\[SpacetimeDB\\.Type\\] attribute","errorType":"exception","errorClass":"InvalidOperationException","httpStatus":null,"severity":"error","filePath":"crates/bindings-csharp/BSATN.Codegen/Utils.cs","lineNumber":162,"sourceCode":"                ? \"SpacetimeDB.BSATN.ByteArray\"\n                : $\"SpacetimeDB.BSATN.Array<{elementType}, {GetTypeInfo(elementType)}>\",\n            _ => throw new InvalidOperationException($\"Unsupported type {type}\"),\n        };\n\n        static string GetTypeInfoForNamedType(INamedTypeSymbol type)\n        {\n            if (type.TypeKind == Microsoft.CodeAnalysis.TypeKind.Error)\n            {\n                throw new UnresolvedTypeException(type);\n            }\n            if (type.TypeKind == Microsoft.CodeAnalysis.TypeKind.Enum)\n            {\n                if (\n                    !type.GetAttributes()\n                        .Any(a => a.AttributeClass?.ToString() == \"SpacetimeDB.TypeAttribute\")\n                )\n                {\n                    throw new InvalidOperationException(\n                        $\"Enum {type} does not have a [SpacetimeDB.Type] attribute\"\n                    );\n                }\n                return $\"SpacetimeDB.BSATN.Enum<{SymbolToName(type)}>\";\n            }\n            var result = type.OriginalDefinition.ToString() switch\n            {\n                // {U/I}{128/256} are not treated by C# as regular primitives, so we need to match them by type name.\n                \"System.Int128\" => \"SpacetimeDB.BSATN.I128\",\n                \"System.UInt128\" => \"SpacetimeDB.BSATN.U128\",\n                \"SpacetimeDB.I128\" => \"SpacetimeDB.BSATN.I128Stdb\",\n                \"SpacetimeDB.U128\" => \"SpacetimeDB.BSATN.U128Stdb\",\n                \"SpacetimeDB.I256\" => \"SpacetimeDB.BSATN.I256\",\n                \"SpacetimeDB.U256\" => \"SpacetimeDB.BSATN.U256\",\n                \"System.Collections.Generic.List<T>\" => $\"SpacetimeDB.BSATN.List\",\n                \"System.Collections.Generic.IEnumerable<T>\" => $\"SpacetimeDB.BSATN.List\",\n                // If we're here, then this is nullable *value* type like `int?`.\n                \"System.Nullable<T>\" => $\"SpacetimeDB.BSATN.ValueOption\",","sourceCodeStart":144,"sourceCodeEnd":180,"githubUrl":"https://github.com/clockworklabs/SpacetimeDB/blob/524b4487d949b61a07d4f39c862d1290259dfd20/crates/bindings-csharp/BSATN.Codegen/Utils.cs#L144-L180","documentation":"Error \"Enum {type} does not have a [SpacetimeDB.Type] attribute\" thrown in clockworklabs/SpacetimeDB.","triggerScenarios":"Thrown at crates/bindings-csharp/BSATN.Codegen/Utils.cs:162 when the library encounters an invalid state.","commonSituations":"See trigger scenarios.","solutions":[],"exampleFix":null,"handlingStrategy":null,"validationCode":null,"typeGuard":null,"tryCatchPattern":null,"preventionTips":[],"tags":[],"backgroundTag":null,"analyzedSha":"524b4487d949b61a07d4f39c862d1290259dfd20","analyzedAt":"2026-08-16T23:58:54.611Z","schemaVersion":2},"datasetVersion":"2026-08-17T04:17:16.089Z"}