Error while deserializing an xml file

Question

Hi there

I am trying to use stream reader to deserialise an xml file using this code:

 var encoding = Encoding.GetEncoding("UTF-8");
         XmlSerializer serializer = new XmlSerializer(typeof(string));
         
         string filename2 = Application.dataPath + "/StreamingAssets/WordLists/wordlists.xml";
         using (StreamReader reader = new StreamReader(filename2))
         {
             wordList = serializer.Deserialize(reader) as WordLists;
             
         }

But I keep getting this error: InvalidOperationException: was not expected System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadRoot (System.Xml.Serialization.XmlTypeMapping rootMap) System.Xml.Serialization.XmlSerializationReaderInterpreter.ReadRoot () System.Xml.Serialization.XmlSerializer.Deserialize (System.Xml.Serialization.XmlSerializationReader reader) Rethrow as InvalidOperationException: There is an error in XML document. System.Xml.Serialization.XmlSerializer.Deserialize (System.Xml.Serialization.XmlSerializationReader reader) System.Xml.Serialization.XmlSerializer.Deserialize (System.Xml.XmlReader xmlReader) System.Xml.Serialization.XmlSerializer.Deserialize (System.IO.TextReader textReader) CreateWordList.AddWordListToList () (at Assets/scripts/XML/CreateWordList.cs:46) CreateWordList.AddWordList () (at Assets/scripts/XML/CreateWordList.cs:35) UnityEngine.Events.InvokableCall.Invoke (System.Object[] args) (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:154) UnityEngine.Events.InvokableCallList.Invoke (System.Object[] parameters) (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:637) UnityEngine.Events.UnityEventBase.Invoke (System.Object[] parameters) (at C:/buildslave/unity/build/Runtime/Export/UnityEvent.cs:773) UnityEngine.Events.UnityEvent.Invoke () (at C:/buildslave/unity/build/Runtime/Export/UnityEvent_0.cs:52) UnityEngine.UI.Button.Press () (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:36) UnityEngine.UI.Button.OnPointerClick (UnityEngine.EventSystems.PointerEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/UI/Core/Button.cs:45) UnityEngine.EventSystems.ExecuteEvents.Execute (IPointerClickHandler handler, UnityEngine.EventSystems.BaseEventData eventData) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:50) UnityEngine.EventSystems.ExecuteEvents.Execute[IPointerClickHandler] (UnityEngine.GameObject target, UnityEngine.EventSystems.BaseEventData eventData, UnityEngine.EventSystems.EventFunction`1 functor) (at C:/buildslave/unity/build/Extensions/guisystem/UnityEngine.UI/EventSystem/ExecuteEvents.cs:261) UnityEngine.EventSystems.EventSystem:Update()

Thanks in advance

Answer 1

Answer by DJT4NN3R · Aug 22, 2017 at 09:07 AM

Try this instead.

 XmlSerializer serializer = new XmlSerializer(typeof(string));
 string filename2 = Application.dataPath + "/StreamingAssets/WordLists/wordlists.xml"
 FileStream stream = new FileStream(filename2, FileMode.Open);
 XmlReader reader = XmlReader.Create(stream);

 string result;

 result = (string)serializer.Deserialize(reader);
 stream.Close();

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Tekman03 · Aug 22, 2017 at 10:33 AM 1

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@DJT4NN3R still having problems with this. It appears to be reading it ok but then produces the same error.

DJT4NN3R Tekman03 · Aug 22, 2017 at 12:13 PM 0

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This was copied and pasted from my current project that's working perfectly fine. Perhaps it's a problem with your XML file...Have you made any manual changes to it?

Tekman03 · Aug 22, 2017 at 10:34 AM 0

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Also the page has left out the actual cause of the error: <WordLists xmlns=''> It says this was not expected in my xml file.

DJT4NN3R Tekman03 · Aug 22, 2017 at 12:12 PM 0

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Did removing that snippet get it to work?

Tekman03 DJT4NN3R · Aug 22, 2017 at 05:00 PM 0

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@DJT4NN3R no its not working yet. I'm not really sure what is wrong as I have just started to learn this!

Answer 2

Answer by walidabazo · Sep 30, 2017 at 03:19 AM

You can show this video

https://youtu.be/ZF707fWAfoc

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Error while deserializing an xml file

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