Unity 5.0.3f2 il2cpp problem: Attempting to call method 'System.Reflection.MonoProperty::GetterAdapt

@JoshPeterson I would like to report that 2018.1.6 did not fix the issue. Tested on both iOS and Android. Using Json.Net still results in the same error that multiple people reported, e.g.:
https://forum.unity.com/threads/uni...operty-getteradapt.332335/page-2#post-3491741

Did 2018.1.6 fix the issue for anybody?

 

I would also like to reconfirm that building the game with Api compatibility set to .NET Standard 2.0 causes the game not to crash. For me, using .NET Standard 2 is not an option for now as some of the 3rd party plugins we use can't target that yet. This issue is a serious hurdle as it prevents me from making new releases for both Android and iOS.

 

So I figured out that PropertyInfo.GetValue(instance, null) is actually the legacy way to do it in +.net 4.5. The newer way is just doing PropertyInfo.GetValue(instance), which appears to work fine for me using il2cpp.

 

The legacy method should still work. The reason I use GetGetMethod and invoke it is due to an older legacy issue with iOS to support older unity versions.

 

Check the last page of the json .net for unity thread (link in my signature). I posted a unitypackage and instructions. That package is built with .net 4.6 and it works even pre-unity fix.

 

This still appears broken using the Bolt plugin and building for WebGL still get the following error: Failed to deserialize scriptable object.
System.Runtime.Serialization.SerializationException: Deserialization into 'Bolt.FlowMacro' failed. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.ExecutionEngineException: Attempting to call method 'System.Reflection.MonoProperty::GetterAdapterFrame' for which no ahead of time (AOT) code was generated.
Just posted a bug. Let me know if there is anything I can do to help fix this.

 

(Case 1052938) Missing AOT code when compiling with IL2CPP and .Net 4.x API for WebGL using the Bolt Visual Scripting Plugin

 

Can someone provide a link to the bug, can't seem to find it on the issue tracker

 

https://fogbugz.unity3d.com/default.asp?1052938_u6f91jqsjler789b

 

Hi! I have same error too. iOS and Android, IL2CPP, 2018.1.6f1:

Spoiler: Error Message:

ExecutionEngineException: Attempting to call method 'System.Reflection.MonoProperty::GetterAdapterFrame<SP.Scripts.Data.Statuses.MissionStatus,System.Boolean>' for which no ahead of time (AOT) code was generated.

System.Reflection.MonoProperty+GetterAdapter.Invoke (System.Object _this) (at <00000000000000000000000000000000>:0)
System.Reflection.MonoProperty.GetValue (System.Object obj, System.Object[] index) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Utilities.ReflectionUtils.GetMemberValue (System.Reflection.MemberInfo member, System.Object target) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.ReflectionValueProvider.GetValue (System.Object target) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContainerContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonProperty property, Newtonsoft.Json.Serialization.JsonContract& memberContract, System.Object& memberValue) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeDictionary (Newtonsoft.Json.JsonWriter writer, System.Collections.IDictionary values, Newtonsoft.Json.Serialization.JsonDictionaryContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value) (at <00000000000000000000000000000000>:0)
SP.Scripts.Controllers.Missions.MissionsController.UnlockMission (SP.Scripts.Types.Mission mission) (at <00000000000000000000000000000000>:0)
SP.Scripts.Root.InitializationSetup.Initialize (System.Boolean isDebug) (at <00000000000000000000000000000000>:0)
SF.Core.Root.SFContextRoot.Init () (at <00000000000000000000000000000000>:0)
Rethrow as TargetInvocationException: Exception has been

Ilya Khurani, [03.07.18 20:42]
thrown by the target of an invocation.
System.Reflection.MonoProperty.GetValue (System.Object obj, System.Object[] index) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Utilities.ReflectionUtils.GetMemberValue (System.Reflection.MemberInfo member, System.Object target) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.ReflectionValueProvider.GetValue (System.Object target) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues (Newtonsoft.Json.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContainerContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonProperty property, Newtonsoft.Json.Serialization.JsonContract& memberContract, System.Object& memberValue) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeDictionary (Newtonsoft.Json.JsonWriter writer, System.Collections.IDictionary values, Newtonsoft.Json.Serialization.JsonDictionaryContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value) (at <00000000000000000000000000000000>:0)
SP.Scripts.Controllers.Missions.MissionsController.UnlockMission (SP.Scripts.Types.Mission mission) (at <00000000000000000000000000000000>:0)
SP.Scripts.Root.InitializationSetup.Initialize (System.Boolean isDebug) (at <00000000000000000000000000000000>:0)
SF.Core.Root.SFContextRoot.Init () (at <00000000000000000000000000000000>:0)
Rethrow as JsonSerializationException: Error getting value from 'IsUnlocked' on 'SP.Scripts.Data.Statuses.MissionStatus'.
Newtonsoft.Json.Serialization.ReflectionValueProvider.GetValue (System.Object target) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.CalculatePropertyValues (Newtonsoft.Jso

Ilya Khurani, [03.07.18 20:42]
n.JsonWriter writer, System.Object value, Newtonsoft.Json.Serialization.JsonContainerContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonProperty property, Newtonsoft.Json.Serialization.JsonContract& memberContract, System.Object& memberValue) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.SerializeDictionary (Newtonsoft.Json.JsonWriter writer, System.Collections.IDictionary values, Newtonsoft.Json.Serialization.JsonDictionaryContract contract, Newtonsoft.Json.Serialization.JsonProperty member, Newtonsoft.Json.Serialization.JsonContainerContract collectionContract, Newtonsoft.Json.Serialization.JsonProperty containerProperty) (at <00000000000000000000000000000000>:0)
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) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.Serialization.JsonSerializerInternalWriter.Serialize (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonSerializer.SerializeInternal (Newtonsoft.Json.JsonWriter jsonWriter, System.Object value, System.Type objectType) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObjectInternal (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializer jsonSerializer) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value, System.Type type, Newtonsoft.Json.JsonSerializerSettings settings) (at <00000000000000000000000000000000>:0)
Newtonsoft.Json.JsonConvert.SerializeObject (System.Object value) (at <00000000000000000000000000000000>:0)
SP.Scripts.Controllers.Missions.MissionsController.UnlockMission (SP.Scripts.Types.Mission mission) (at <00000000000000000000000000000000>:0)
SP.Scripts.Root.InitializationSetup.Initialize (System.Boolean isDebug) (at <00000000000000000000000000000000>:0)
SF.Core.Root.SFContextRoot.Init () (at <00000000000000000000000000000000>:0)

 

Ok. Thanks.

 

Any update about this issue? It stops me from releasing an iOS update because of Marklight for Unity.

 

I recently experienced the same issue with 2018.3.b2. Using Json.Net.Unity3D, IL2CPP (HoloLens build) with .NET 4.x framework. I just want to serialize a simple POCO class, only simple datatypes being stored via Properties. Extending the link.xml does not seem to do the trick.

 

Submitted via the Unity Bugtracker right now. I will update with a ticket number as soon as I have one.

Update: It's Case 1084624

 

My workaround until today was to not use public properties but member attributes. While working on something unrelated today I found that adding the following to my link.xml solved the issue:

Code (csharp):

1.  
2. <assembly fullname="System">
3.     <!-- Need to use Newtonsoft Json.NET library with IL2CPP build. -->
4.     <namespace fullname="System.ComponentModel" preserve="all" ignoreIfMissing="1"/>
5. </assembly>
6.  

I found that part of code in Microsofts AppCenter package:
https://github.com/Microsoft/AppCenter-SDK-Unity/releases

I changed back to public properties again, they get serialized as expected now.

 

I got `
ExecutionEngineException: Attempting to call method 'System.Reactive.Linq.QueryLanguage::Multicast<UnityEngine.Vector2, UnityEngine.Vector2>' for which no ahead of time (AOT) code was generated.` and not sure how to fix
https://github.com/neuecc/UniRx/issues/300#issuecomment-439877584