Resolving package dependencies in a .NET project-CodePudding

I've got a problem after I added the Logz.io log4net plugin (Logzio.DotNet.Log4net) to my .NET project:

log4net:ERROR Failed to find type [log4net.Layout.SerializedLayout, log4net.Ext.Json]
System.IO.FileLoadException: Could not load file or assembly 'log4net, Version=2.0.9.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'. The located assembly's manifest definition does not match the assembly reference. (0x80131040)
File name: 'log4net, Version=2.0.9.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'
   at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, StackCrawlMarkHandle stackMark, ObjectHandleOnStack assemblyLoadContext, Boolean loadTypeFromPartialName, ObjectHandleOnStack type, ObjectHandleOnStack keepalive)
   at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext, Boolean loadTypeFromPartialName)
   at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, StackCrawlMark& stackMark)
   at System.Type.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase)
   at log4net.Util.SystemInfo.GetTypeFromString(Assembly relativeAssembly, String typeName, Boolean throwOnError, Boolean ignoreCase)
   at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.CreateObjectFromXml(XmlElement element, Type defaultTargetType, Type typeConstraint)


log4net:ERROR Failed to create object to set param: layout
log4net:ERROR Could not create Appender [LogzioAppender] of type [Logzio.DotNet.Log4net.LogzioAppender, Logzio.DotNet.Log4net]. Reported error follows.
System.IO.FileLoadException: Could not load file or assembly 'log4net, Version=2.0.12.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'. The located assembly's manifest definition does not match the assembly reference. (0x80131040)
File name: 'log4net, Version=2.0.12.0, Culture=neutral, PublicKeyToken=669e0ddf0bb1aa2a'
   at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, StackCrawlMarkHandle stackMark, ObjectHandleOnStack assemblyLoadContext, Boolean loadTypeFromPartialName, ObjectHandleOnStack type, ObjectHandleOnStack keepalive)
   at System.RuntimeTypeHandle.GetTypeByName(String name, Boolean throwOnError, Boolean ignoreCase, StackCrawlMark& stackMark, AssemblyLoadContext assemblyLoadContext, Boolean loadTypeFromPartialName)
   at System.RuntimeType.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase, StackCrawlMark& stackMark)
   at System.Type.GetType(String typeName, Boolean throwOnError, Boolean ignoreCase)
   at log4net.Util.SystemInfo.GetTypeFromString(Assembly relativeAssembly, String typeName, Boolean throwOnError, Boolean ignoreCase)
   at log4net.Repository.Hierarchy.XmlHierarchyConfigurator.ParseAppender(XmlElement appenderElement)

In short, [log4net.Layout.SerializedLayout, log4net.Ext.Json] is requesting log4net version 2.0.9.0, while [Logzio.DotNet.Log4net.LogzioAppender, Logzio.DotNet.Log4net] is requesting log4net version 2.0.12.0

So in this case I understand the problem clearly, but don't know how to resolve it. I've never seen this before, usually, NuGet does a good job by itself.

Ideally, it'd be great to get both to use log4net 2.0.13.0, which is the latest version at the time of this post, but I'd be happy learning how I can resolve this issue in general.

Any ideas or solutions? Thanks!

CodePudding user response：

Updating to the latest version will resolve the issue as the minimum has been required log4net version 2.0.12.0 when the backward compatibility has not been entertained by Logz.io.

A few days I also had faced alike issues while most of the packages are updating after the ms vs 2022 final release!

CodePudding user response：

Figured it out of course minutes after posting. The trick was to trust in NuGet. Somehow through my tinkering I got mixed up versions. So the solution was the following:

Right click solution -> Manage NuGet Packages
Uninstall log4net, log4net.Ext.Json, and Logzio.DotNet.Log4net
Reinstall all three. NuGet will take the latest compatible versions, which as @yasir-arafat mentioned, is needed to resolve the conflicts at least for the Logzio package. In the end, I can confirm the following configuration (from my .csproj file) is working:

<PackageReference Include="log4net.Ext.Json" Version="2.0.10.1" />
<PackageReference Include="log4net" Version="2.0.13" />
<PackageReference Include="Logzio.DotNet.Log4net" Version="1.0.13" />