XmlImporter had unexpected failure

[Cybertwip]

I'm trying to build xml mappings for our animations but I get the error XmlImporter had unexpected failure. I'm not sure why it is failing, it fails only with XML files as the custom processed TMX Tiled map files are running and building fine. Below is the log of the build.

The troubling xml is also attached as annMap.txt, just rename it to xml and try it.

Build started 1/22/2020 11:54:04 PM

/Users/greentwip/Documents/Source/harvestmoon/Data/Content/animations/annMap.xml
Warning: Exception of type 'System.Reflection.ReflectionTypeLoadException' was thrown.
/Users/greentwip/Documents/Source/harvestmoon/Data/Content/animations/annMap.xml: error: Importer 'XmlImporter' had unexpected failure!
System.Reflection.ReflectionTypeLoadException: Exception of type 'System.Reflection.ReflectionTypeLoadException' was thrown.
  at (wrapper managed-to-native) System.Reflection.Assembly.GetTypes(System.Reflection.Assembly,bool)
  at System.Reflection.Assembly.GetTypes () [0x00000] in <2722d81e5b26475cb5f475fea055f291>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateSerializer+<>c.<FindType>b__15_0 (System.Reflection.Assembly assembly) [0x00000] in <31874325f092437ca6e29782e6a4c35c>:0 
  at System.Linq.Enumerable+<SelectManyIterator>d__167`3[TSource,TCollection,TResult].MoveNext () [0x0004e] in <f84aa906ee264c4a932d8627b3559eb9>:0 
  at System.Linq.Enumerable+WhereSelectEnumerableIterator`2[TSource,TResult].MoveNext () [0x00059] in <f84aa906ee264c4a932d8627b3559eb9>:0 
  at System.Linq.Enumerable.TryGetFirst[TSource] (System.Collections.Generic.IEnumerable`1[T] source, System.Boolean& found) [0x00045] in <f84aa906ee264c4a932d8627b3559eb9>:0 
  at System.Linq.Enumerable.FirstOrDefault[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x00000] in <f84aa906ee264c4a932d8627b3559eb9>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateSerializer.FindType (System.String typeName) [0x00202] in <31874325f092437ca6e29782e6a4c35c>:0 
  at System.Linq.Enumerable+SelectArrayIterator`2[TSource,TResult].ToArray () [0x00012] in <f84aa906ee264c4a932d8627b3559eb9>:0 
  at System.Linq.Enumerable.ToArray[TSource] (System.Collections.Generic.IEnumerable`1[T] source) [0x0001f] in <f84aa906ee264c4a932d8627b3559eb9>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateSerializer.FindType (System.String typeName) [0x00149] in <31874325f092437ca6e29782e6a4c35c>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateReader.ReadTypeName () [0x00012] in <31874325f092437ca6e29782e6a4c35c>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateReader.ReadObject[T] (Microsoft.Xna.Framework.Content.ContentSerializerAttribute format, Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.ContentTypeSerializer typeSerializer, T existingInstance) [0x0009f] in <31874325f092437ca6e29782e6a4c35c>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateReader.ReadObject[T] (Microsoft.Xna.Framework.Content.ContentSerializerAttribute format) [0x00017] in <31874325f092437ca6e29782e6a4c35c>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.Serialization.Intermediate.IntermediateSerializer.Deserialize[T] (System.Xml.XmlReader input, System.String referenceRelocationPath) [0x00053] in <31874325f092437ca6e29782e6a4c35c>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.XmlImporter.Import (System.String filename, Microsoft.Xna.Framework.Content.Pipeline.ContentImporterContext context) [0x00007] in <31874325f092437ca6e29782e6a4c35c>:0 
  at Microsoft.Xna.Framework.Content.Pipeline.ContentImporter`1[T].Microsoft.Xna.Framework.Content.Pipeline.IContentImporter.Import (System.String filename, Microsoft.Xna.Framework.Content.Pipeline.ContentImporterContext context) [0x0001c] in <31874325f092437ca6e29782e6a4c35c>:0 
  at MonoGame.Framework.Content.Pipeline.Builder.PipelineManager.ProcessContent (MonoGame.Framework.Content.Pipeline.Builder.PipelineBuildEvent pipelineEvent) [0x00079] in <31874325f092437ca6e29782e6a4c35c>:0 

Build 0 succeeded, 1 failed.

Time elapsed 00:00:00.60.

annMap.txt

What version of MonoGame does the bug occur on:

• MonoGame 3.8.0.1018

What operating system are you using:

• MacOS

What MonoGame platform are you using:

• DesktopGL

[QuinnBast]

Duplicate of #6942