Getting Extent Report XML Serializer issue

[Divya23490]

I have updated the extent report package to 5.0.1 and updated the extent-config.xml with the latest for c# project but still I am getting this issue. I am getting error at LoadXMLConfig method. I debugged the code and checked the extendConfigPath is correct. Please suggest the fix.
var htmlReporter = new ExtentSparkReporter(Path.Combine(resultPath, "TestAutomation_Appium.html"));
htmlReporter.LoadXMLConfig(extendConfigPath);

Below is the error that I get while debugging the code:-
System.IO.FileNotFoundException: Could not load the file 'ExtentReports.XmlSerializers'.
File name: 'ExtentReports.XmlSerializers'
at System.AppDomain.Load (System.Reflection.AssemblyName assemblyRef, System.Security.Policy.Evidence assemblySecurity) [0x00073] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/mcs/class/corlib/System/AppDomain.cs:758
at (wrapper remoting-invoke-with-check) System.AppDomain.Load(System.Reflection.AssemblyName,System.Security.Policy.Evidence)
at System.AppDomain.Load (System.Reflection.AssemblyName assemblyRef) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/mcs/class/corlib/System/AppDomain.cs:724
at (wrapper remoting-invoke-with-check) System.AppDomain.Load(System.Reflection.AssemblyName)
at System.Reflection.Assembly.Load (System.Reflection.AssemblyName assemblyRef) [0x00000] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/mcs/class/corlib/System.Reflection/Assembly.cs:440
at System.Xml.Serialization.TempAssembly.LoadGeneratedAssembly (System.Type type, System.String defaultNamespace, System.Xml.Serialization.XmlSerializerImplementation& contract) [0x0006c] in /Users/builder/jenkins/workspace/build-package-osx-mono/2020-02/external/bockbuild/builds/mono-x64/mcs/class/referencesource/System.Xml/System/Xml/Serialization/Compilation.cs:177

[anshooarora]

Are you using the config file from https://github.com/extent-framework/extentreports-csharp/tree/master/config? The config file for C# and Java implementations are different.

[Divya23490]

Yes, I am using the sparkconfig.xml which is added by you just few days back. After changing the file, still I am getting the same issue. I have created net framework 4.7.1 specflow project on rider. Added Extent Reports 5.0.1 nuget package.

[anshooarora]

I'm unable to reproduce this error with the current config file. Can you create a project or snippet reproducing this error with code + config and share it? It will better help me understand what's causing this.