{"record":{"id":"518023f704248e79","repo":"stride3d/stride","slug":"no-serializer-available-for-type-id","errorCode":null,"errorMessage":"No serializer available for type id ","messagePattern":"No serializer available for type id ","errorType":"exception","errorClass":"ArgumentException","httpStatus":null,"severity":"error","filePath":"sources/core/Stride.Core/Serialization/MemberSerializerCore.ttinclude","lineNumber":247,"sourceCode":"            else\n            {\n<# if (supportsReuseReferences) { #>\n                if (reuseReferences)\n                {\n                    if (objectReferences.Count != index)\n                        throw new ContentRefOutOfSyncException();\n                    objectReferences.Add(null);\n                }\n<# } #>\n<# if (supportsNonSealed) { #>\n                if (hasTypeInfo)\n                {\n                    Unsafe.SkipInit(out ObjectId serializationTypeId);\n                    stream.Serialize(ref serializationTypeId);\n\n                    objectDataSerializer = context.SerializerSelector.GetSerializer(ref serializationTypeId);\n                    if (objectDataSerializer is null)\n                        throw new ArgumentException(\"No serializer available for type id \" + serializationTypeId + \" and base type \" + <#= typeExpr #>.FullName);\n\n<# if (supportsGenerics) { #>\n                    objCopy = obj;\n<# } #>\n                    objectDataSerializer.PreSerialize(ref <#= objCopyExpr #>, mode, stream);\n\n<# if (supportsReuseReferences) { #>\n                    if (reuseReferences)\n                    {\n                        // Register object so that later references to it are working.\n                        objectReferences[index] = <#= objCopyExpr #>;\n                    }\n<# } #>\n\n                    objectDataSerializer.Serialize(ref <#= objCopyExpr #>, mode, stream);\n<# if (supportsGenerics) { #>\n                    obj = (T)objCopy;\n<# } #>","sourceCodeStart":229,"sourceCodeEnd":265,"githubUrl":"https://github.com/stride3d/stride/blob/96fad776d210c221682aac1ccdf4c79dc046fc38/sources/core/Stride.Core/Serialization/MemberSerializerCore.ttinclude#L229-L265","documentation":"During deserialization of a polymorphic reference member, the type id (ObjectId) is read from the stream and looked up in the serializer registry; if no serializer is registered for that type id (and base type), ArgumentException is thrown. This means the serialized data references a concrete type the loading process doesn't know how to construct.","triggerScenarios":"Loading data whose embedded ObjectId maps to a type from an assembly not registered for serialization; deserializing assets saved in a project with extra classes/plugins absent at load time; type renamed/moved after save so the ObjectId/serializer mapping is stale; a SerializerSelector profile that filters out the serializer for that id.","commonSituations":"Sharing scene/asset files between machines where one has a plugin package installed and the other doesn't; loading a game save after removing a modded component class; version upgrades where generated serializer assemblies changed.","solutions":["Install/register the assembly (plugin/package) containing the referenced type before deserializing","Re-save the data after removing references to the missing type","If the type was renamed, migrate the serialized data or re-register the old type id","Use the default SerializerSelector if a custom one is excluding the required serializer"],"exampleFix":"// before\nvar scene = Content.Load<Scene>(\"scene\"); // references ModComponent from missing plugin\n// after\n// install the plugin package containing ModComponent, then:\nSerialization.RegisterSerializationAssembly(modAssembly);\nvar scene = Content.Load<Scene>(\"scene\");","handlingStrategy":"validation","validationCode":"// pre-flight: resolve every type id referenced by the data, or ensure plugin assemblies are loaded\nforeach (var asm in requiredPluginAssemblies)\n    if (Assembly.Load(new AssemblyName(asm)) is null)\n        throw new InvalidOperationException($\"Missing plugin assembly '{asm}' required by the data\");","typeGuard":null,"tryCatchPattern":"try\n{\n    stream.Deserialize(ref obj);\n}\ncatch (ArgumentException ex) when (ex.Message.StartsWith(\"No serializer available for type id\"))\n{\n    logger.Error(ex, \"Serialized data references an unknown type id - install the missing plugin/package or re-save without it\");\n    throw;\n}","preventionTips":["Distribute every plugin assembly that can appear inside saved data","Fail fast at startup by verifying required plugin packages are installed","When removing a class from your model, migrate old data instead of shipping it broken","Pin serializer compatibility across save/load version pairs"],"tags":["serialization","deserialization","type-id","missing-serializer","stride"],"backgroundTag":"class-not-found","analyzedSha":"96fad776d210c221682aac1ccdf4c79dc046fc38","analyzedAt":"2026-09-14T02:59:31.279Z","contentChangedAt":"2026-09-14T02:59:31.279Z","schemaVersion":2},"datasetVersion":"2026-09-15T23:17:13.987Z"}