Saving problem

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#1

On this lecture I noticed a bug that started happening for me with the saving system, error message below. The problem happens any time I try to load or save. Since it’s been a while, since we worked with it I have no idea when this bug was introduced or how to even begin tracking it down. The last time I know this was working is the lecture where this lazy value was introduced and I had no problem then.

SerializationException: Type 'GameDevTV.Utils.LazyValue`1[[System.Single, mscorlib, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]' in Assembly 'Assembly-CSharp, Version=0.0.0.0, Culture=neutral, PublicKeyToken=null' is not marked as serializable.
System.Runtime.Serialization.FormatterServices.InternalGetSerializableMembers (System.RuntimeType type) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.FormatterServices+<>c__DisplayClass9_0.<GetSerializableMembers>b__0 (System.Runtime.Serialization.MemberHolder _) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Collections.Concurrent.ConcurrentDictionary`2[TKey,TValue].GetOrAdd (TKey key, System.Func`2[T,TResult] valueFactory) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.FormatterServices.GetSerializableMembers (System.Type type, System.Runtime.Serialization.StreamingContext context) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitMemberInfo () (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.InitSerialize (System.Object obj, System.Runtime.Serialization.ISurrogateSelector surrogateSelector, System.Runtime.Serialization.StreamingContext context, System.Runtime.Serialization.Formatters.Binary.SerObjectInfoInit serObjectInfoInit, System.Runtime.Serialization.IFormatterConverter converter, System.Runtime.Serialization.Formatters.Binary.ObjectWriter objectWriter, System.Runtime.Serialization.SerializationBinder binder) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo.Serialize (System.Object obj, System.Runtime.Serialization.ISurrogateSelector surrogateSelector, System.Runtime.Serialization.StreamingContext context, System.Runtime.Serialization.Formatters.Binary.SerObjectInfoInit serObjectInfoInit, System.Runtime.Serialization.IFormatterConverter converter, System.Runtime.Serialization.Formatters.Binary.ObjectWriter objectWriter, System.Runtime.Serialization.SerializationBinder binder) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write (System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo objectInfo, System.Runtime.Serialization.Formatters.Binary.NameInfo memberNameInfo, System.Runtime.Serialization.Formatters.Binary.NameInfo typeNameInfo) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteArrayMember (System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo objectInfo, System.Runtime.Serialization.Formatters.Binary.NameInfo arrayElemTypeNameInfo, System.Object data) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.WriteArray (System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo objectInfo, System.Runtime.Serialization.Formatters.Binary.NameInfo memberNameInfo, System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo memberObjectInfo) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Write (System.Runtime.Serialization.Formatters.Binary.WriteObjectInfo objectInfo, System.Runtime.Serialization.Formatters.Binary.NameInfo memberNameInfo, System.Runtime.Serialization.Formatters.Binary.NameInfo typeNameInfo) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.ObjectWriter.Serialize (System.Object graph, System.Runtime.Remoting.Messaging.Header[] inHeaders, System.Runtime.Serialization.Formatters.Binary.__BinaryWriter serWriter, System.Boolean fCheck) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize (System.IO.Stream serializationStream, System.Object graph, System.Runtime.Remoting.Messaging.Header[] headers, System.Boolean fCheck) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize (System.IO.Stream serializationStream, System.Object graph, System.Runtime.Remoting.Messaging.Header[] headers) (at <d6232873609549b8a045fa15811a5bd3>:0)
System.Runtime.Serialization.Formatters.Binary.BinaryFormatter.Serialize (System.IO.Stream serializationStream, System.Object graph) (at <d6232873609549b8a045fa15811a5bd3>:0)
RPG.Saving.SavingSystem.SaveFile (System.String saveFile, System.Object state) (at Assets/Scripts/Saving/SavingSystem.cs:49)
RPG.Saving.SavingSystem.Save (System.String saveFile) (at Assets/Scripts/Saving/SavingSystem.cs:29)
RPG.SceneManagement.SavingWrapper.Save () (at Assets/Scripts/SceneManagement/SavingWrapper.cs:46)
RPG.SceneManagement.SavingWrapper.Update () (at Assets/Scripts/SceneManagement/SavingWrapper.cs:30)
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#2

Ok, I went through all the places where lazy value is used and I spotted the problem. in Health.cs I forgot to add .value when returning Captured state and obviously compiler didn’t complain, since the return type is object. Just leaving this here in case someone gets into the same problem.

#3

Good job working this out.

Remember that if you do encounter the problem, then the save file is permanently corrupted and needs to be deleted.

#4

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