Blazor: Constructor on type 'System.ComponentModel.ReferenceConverter

[TFTomSun]

The issue has already been reported and fixed for Xamarin and .NET. I'm working on a Blazor SPA app and get the following exception when I try to serialize an object.

Is there a possibilty to workaround that issue?

System.MissingMethodException: Constructor on type 'System.ComponentModel.ReferenceConverter' not found.
at System.RuntimeType.CreateInstanceImpl (System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes, System.Threading.StackCrawlMark& stackMark) <0x22dc130 + 0x00330> in :0
at System.Activator.CreateInstance (System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes) <0x22dbac0 + 0x000c6> in :0
at System.Activator.CreateInstance (System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture) <0x2b63b28 + 0x0002a> in :0
at System.SecurityUtils.SecureCreateInstance (System.Type type, System.Object[] args, System.Boolean allowNonPublic) <0x2b63a50 + 0x0008e> in :0
at System.SecurityUtils.SecureCreateInstance (System.Type type) <0x2b63980 + 0x0000c> in :0
at System.ComponentModel.ReflectTypeDescriptionProvider.CreateInstance (System.Type objectType, System.Type callingType) <0x2b60828 + 0x0003c> in :0
at System.ComponentModel.ReflectTypeDescriptionProvider.SearchIntrinsicTable (System.Collections.Hashtable table, System.Type callingType) <0x2b5fe48 + 0x00276> in :0
at System.ComponentModel.ReflectTypeDescriptionProvider+ReflectedTypeData.GetConverter (System.Object instance) <0x2b5a100 + 0x0015e> in :0
at System.ComponentModel.ReflectTypeDescriptionProvider.GetConverter (System.Type type, System.Object instance) <0x2b542f8 + 0x00022> in :0
at System.ComponentModel.TypeDescriptor+TypeDescriptionNode+DefaultTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetConverter () <0x2b54048 + 0x00042> in :0
at System.ComponentModel.TypeDescriptor.GetConverter (System.Type type) <0x2b4d778 + 0x00014> in :0
at Newtonsoft.Json.Serialization.JsonTypeReflector.CanTypeDescriptorConvertString (System.Type type, System.ComponentModel.TypeConverter& typeConverter) [0x00000] in //Src/Newtonsoft.Json/Serialization/JsonTypeReflector.cs:77
at Newtonsoft.Json.Serialization.DefaultContractResolver.CanConvertToString (System.Type type) [0x00000] in //Src/Newtonsoft.Json/Serialization/DefaultContractResolver.cs:1275
at Newtonsoft.Json.Serialization.DefaultContractResolver.CreateContract (System.Type objectType) [0x000ab] in //Src/Newtonsoft.Json/Serialization/DefaultContractResolver.cs:1222
at (wrapper delegate-invoke) System.Func2[System.Type,Newtonsoft.Json.Serialization.JsonContract].invoke_TResult_T(System.Type) at System.Collections.Concurrent.ConcurrentDictionary2[TKey,TValue].GetOrAdd (TKey key, System.Func2[T,TResult] valueFactory) <0x2b1bad0 + 0x0007c> in :0 at Newtonsoft.Json.Utilities.ThreadSafeStore2[TKey,TValue].Get (TKey key) [0x00000] in //Src/Newtonsoft.Json/Utilities/ThreadSafeStore.cs:64
at Newtonsoft.Json.Serialization.DefaultContractResolver.ResolveContract (System.Type type) [0x0000b] in //Src/Newtonsoft.Json/Serialization/DefaultContractResolver.cs:198
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.WriteStartArray (Newtonsoft.Json.JsonWriter writer, System.Object values, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000a4] in //Src/Newtonsoft.Json/Serialization/JsonSerializerInternalWriter.cs:827
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeList (Newtonsoft.Json.JsonWriter writer, System.Collections.IEnumerable values, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x00029] in //Src/Newtonsoft.Json/Serialization/JsonSerializerInternalWriter.cs:669
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000d4] in //Src/Newtonsoft.Json/Serialization/JsonSerializerInternalWriter.cs:179
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeObject (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x0008d] in //Src/Newtonsoft.Json/Serialization/JsonSerializerInternalWriter.cs:469
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeValue (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContract valueContract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) [0x000b0] in //Src/Newtonsoft.Json/Serialization/JsonSerializerInternalWriter.cs:173
at Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x00079] in //Src/Newtonsoft.Json/Serialization/JsonSerializerInternalWriter.cs:95
at Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x0023a] in //Src/Newtonsoft.Json/JsonSerializer.cs:1149
at Newtonsoft.Json.JsonSerializer.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) [0x00000] in //Src/Newtonsoft.Json/JsonSerializer.cs:1049
at Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) [0x00028] in //Src/Newtonsoft.Json/JsonConvert.cs:664
at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) [0x00007] in //Src/Newtonsoft.Json/JsonConvert.cs:613
at Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value) [0x00000] in //Src/Newtonsoft.Json/JsonConvert.cs:529
at JsonSerializerExtensions.CloneJson[T] (T value, T newInstance) [0x00001] in D:\Git\blazor-

[TFTomSun]

I could workaround the issue by adding the

[JsonObject(MemberSerialization.OptIn)]

attribute to my class. I guess the problem occurs during the information gathering of some properties in my base class that i actually don't want to serialize.

[philr-vistatec]

I get the same error when I try to de-serialize a graph representing a document structure which uses custom converters derived from JsonConverter.

blazor.webassembly.js:1 WASM: System.MissingMethodException: Constructor on type 'System.ComponentModel.ReferenceConverter' not found.
blazor.webassembly.js:1 WASM:   at System.RuntimeType.CreateInstanceImpl (System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes, System.Threading.StackCrawlMark& stackMark) <0x20812e8 + 0x0032c> in <f4072889680a4c139ae7f58d7e8832a7>:0 
blazor.webassembly.js:1 WASM:   at System.Activator.CreateInstance (System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture, System.Object[] activationAttributes) <0x2080d18 + 0x000c8> in <f4072889680a4c139ae7f58d7e8832a7>:0 
blazor.webassembly.js:1 WASM:   at System.Activator.CreateInstance (System.Type type, System.Reflection.BindingFlags bindingAttr, System.Reflection.Binder binder, System.Object[] args, System.Globalization.CultureInfo culture) <0x267adf8 + 0x00016> in <f4072889680a4c139ae7f58d7e8832a7>:0 
blazor.webassembly.js:1 WASM:   at System.SecurityUtils.SecureCreateInstance (System.Type type, System.Object[] args, System.Boolean allowNonPublic) <0x267ad28 + 0x00092> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.SecurityUtils.SecureCreateInstance (System.Type type) <0x2678c10 + 0x00008> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.ComponentModel.ReflectTypeDescriptionProvider.CreateInstance (System.Type objectType, System.Type callingType) <0x2677f58 + 0x00034> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.ComponentModel.ReflectTypeDescriptionProvider.SearchIntrinsicTable (System.Collections.Hashtable table, System.Type callingType) <0x26774e8 + 0x002e8> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.ComponentModel.ReflectTypeDescriptionProvider+ReflectedTypeData.GetConverter (System.Object instance) <0x266a3b8 + 0x00180> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.ComponentModel.ReflectTypeDescriptionProvider.GetConverter (System.Type type, System.Object instance) <0x2669d30 + 0x00016> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.ComponentModel.TypeDescriptor+TypeDescriptionNode+DefaultTypeDescriptor.System.ComponentModel.ICustomTypeDescriptor.GetConverter () <0x2669a88 + 0x0003e> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at System.ComponentModel.TypeDescriptor.GetConverter (System.Type type) <0x2665718 + 0x00010> in <19bbec7b522743e889bff711c7b96bc3>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonTypeReflector.CanTypeDescriptorConvertString (System.Type type, System.ComponentModel.TypeConverter& typeConverter) <0x265a220 + 0x0000a> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.DefaultContractResolver.CanConvertToString (System.Type type) <0x265a010 + 0x0000a> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.DefaultContractResolver.CreateContract (System.Type objectType) <0x260ec98 + 0x0013c> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.CamelCasePropertyNamesContractResolver.ResolveContract (System.Type type) <0x260e2b8 + 0x000a2> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.GetContractSafe (System.Type type) <0x260dda0 + 0x00034> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList (System.Collections.IList list, Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, System.String id) <0x27f8df0 + 0x000c8> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, System.Object existingValue, System.String id) <0x27eac60 + 0x001ac> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) <0x27bce40 + 0x000d0> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ResolvePropertyAndCreatorValues (Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, Newtonsoft.Json.JsonReader reader, System.Type objectType) <0x27cd020 + 0x00270> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObjectUsingCreatorWithParameters (Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, Newtonsoft.Json.Serialization.ObjectConstructor`1[T] creator, System.String id) <0x27d4980 + 0x00142> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject (Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonObjectContract objectContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, Newtonsoft.Json.Serialization.JsonProperty containerProperty, System.String id, System.Boolean& createdFromNonDefaultCreator) <0x27c0418 + 0x0006a> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) <0x27bdb80 + 0x002c2> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) <0x27bce40 + 0x000b0> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.PopulateList (System.Collections.IList list, Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonArrayContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, System.String id) <0x27f8df0 + 0x0034e> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateList (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, System.Object existingValue, System.String id) <0x27eac60 + 0x001ac> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) <0x27bce40 + 0x000d0> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.ResolvePropertyAndCreatorValues (Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, Newtonsoft.Json.JsonReader reader, System.Type objectType) <0x27cd020 + 0x00270> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObjectUsingCreatorWithParameters (Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonObjectContract contract, Newtonsoft.Json.Serialization.JsonProperty containerProperty, Newtonsoft.Json.Serialization.ObjectConstructor`1[T] creator, System.String id) <0x27d4980 + 0x00142> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateNewObject (Newtonsoft.Json.JsonReader reader, Newtonsoft.Json.Serialization.JsonObjectContract objectContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, Newtonsoft.Json.Serialization.JsonProperty containerProperty, System.String id, System.Boolean& createdFromNonDefaultCreator) <0x27c0418 + 0x0006a> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateObject (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) <0x27bdb80 + 0x002c2> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.CreateValueInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType, Newtonsoft.Json.Serialization.JsonContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract containerContract, Newtonsoft.Json.Serialization.JsonProperty containerMember, System.Object existingValue) <0x27bce40 + 0x000b0> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.Serialization.JsonSerializerInternalReader.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType, System.Boolean checkAdditionalContent) <0x260daa8 + 0x001b0> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.JsonSerializer.DeserializeInternal (Newtonsoft.Json.JsonReader reader, System.Type objectType) <0x25f1928 + 0x000ac> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.JsonSerializer.Deserialize (Newtonsoft.Json.JsonReader reader, System.Type objectType) <0x25f1258 + 0x00010> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.JsonConvert.DeserializeObject (System.String value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) <0x25f84e8 + 0x00076> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Newtonsoft.Json.JsonConvert.DeserializeObject[T] (System.String value, Newtonsoft.Json.JsonSerializerSettings settings) <0x25f7c70 + 0x0000c> in <12891e825fce44a581e5bbbb579c1d49>:0 
blazor.webassembly.js:1 WASM:   at Localization.Jliff.Graph.Converter.Deserialize (System.String json) [0x0006f] in E:\Dev\DotNet\JliffEditor\JliffEditor.Jliff\Serialization\Converter.cs:76 
blazor.webassembly.js:1 WASM:   at JliffEditor.Client.Pages.Editor.OnInitAsync () [0x00096] in E:\Dev\DotNet\JliffEditor\JliffEditor.Client\Pages\Editor.razor:46 
blazor.webassembly.js:1 WASM:   at Microsoft.AspNetCore.Components.ComponentBase.RunInitAndSetParametersAsync () <0x206d928 + 0x00160> in <13ab8f8dacb6489b93c9655168c56037>:0 
blazor.webassembly.js:1 WASM:   at Microsoft.AspNetCore.Components.Rendering.Renderer.GetErrorHandledTask (System.Threading.Tasks.Task taskToHandle) <0x224efa0 + 0x000fe> in <13ab8f8dacb6489b93c9655168c56037>:0 

[Joelius300]

Depending on your use-case, you can work around this bug by adding this line to the @code-part in the "parent"-component which contains the component that throws the error.

private ReferenceConverter ReferenceConverter = new ReferenceConverter(typeof(PROBLEMATIC_COMPONENT));

You can read more about this in the Known-Issues of my library where you can see how it's used with an example use-case from our library.