将ILMerge与log4net一起使用会导致"由于保护级别而无法访问"错误

Question

我为log4net日志记录对象的初始化创建了一个包装类,以便更容易在ThreadContext中建立自定义属性.这发生在我已经建立的类库中以及许多其他有用的函数中.为了加入所有各种库,我还使用'/ internalize'开关向ILMerge添加了一个AfterBuild目标.

这种初始化方法的所有引用内由ILMerge针对性库似乎工作就好了.但是,当我在其他地方引用这个合并的库时.我的实现会引发保护级错误.我已经尝试向可选的exclude(/internalize:excludes.txt)文件中添加各种内容,但这似乎不起作用.

示例excludes.txt:

log4net.Config
log4net.ThreadContext
log4net.LogManager

其他人遇到过这个问题吗？

[编辑]:

这是代码:

 [assembly: log4net.Config.XmlConfigurator(Watch = true)]
namespace Logging
{
    public static class Log4NetThreadContext
    {
        public static ILog Initialize(Type declaringType)
        {
            // Read from configuration
            XmlConfigurator.Configure();

            // Set Properties
            ThreadContext.Properties["ID"] = ...
                ...
                ...
                ...

            if(System.Diagnostics.Debugger.IsAttached)
            {
                // Special debugging logger
                return LogManager.GetLogger("DEBUG_MODE");
            }
            else
            {
                // Root logger
                return LogManager.GetLogger(declaringType);
            }
        }
    }
}

我正在使用这样的代码..

private static readonly Type declaringType = 
    MethodBase.GetCurrentMethod().DeclaringType;
private static readonly ILog log =
    Log4NetThreadContext.Initialize(declaringType);
...
log.Info("Something useful");

[编辑]:

这是我的AfterBuild目标

<Target Name="AfterBuild">
<CreateItem Include="@(ReferenceCopyLocalPaths)" Condition="'%(Extension)'=='.dll'">
  <Output ItemName="AssembliesToMerge" TaskParameter="Include" />
</CreateItem>
<Message Text="MERGING: @(AssembliesToMerge->'%(Filename)')" Importance="High" />
<Exec Command="&quot;$(ProgramFiles)\Microsoft\Ilmerge\Ilmerge.exe&quot; /targetplatform:v2 /log /internalize:&quot;ilmerge.excludes.txt&quot; /keyfile:$(AssemblyOriginatorKeyFile) /out:@(MainAssembly) &quot;@(IntermediateAssembly)&quot; @(AssembliesToMerge->'&quot;%(FullPath)&quot;', ' ')" />
<Delete Files="@(ReferenceCopyLocalPaths->'$(OutDir)%(DestinationSubDirectory)%(Filename)%(Extension)')" />

通常是否有更好的方法来调试保护级别问题？

Log4NetThreadContext.Initialize(System.Type)' is inaccessible due to its protection level

Answer 1

最终,最简单的方法是将log4net从ilmerge进程中完全排除,并将其作为依赖程序集进行维护.

经过多次折磨后,这里出现了"不那么明显"的解决方案......

毕竟不需要排除,真正的答案是使用/lib:[path]ilmerge中的开关.

我更新了AfterBuild目标以从/internalize交换机中删除排除项.接下来,我添加了/lib交换机以传递log4net dll的位置作为依赖引用.它看起来像这样:

<Target Name="AfterBuild">
  <CreateItem Include="@(ReferenceCopyLocalPaths)" Condition="'%(Extension)'=='.dll'">
    <Output ItemName="AssembliesToMerge" TaskParameter="Include" />
  </CreateItem>
  <Message Text="MERGING: @(AssembliesToMerge->'%(Filename)')" Importance="High" />
  <Exec Command="&quot;$(ProgramFiles)\Microsoft\Ilmerge\Ilmerge.exe&quot; /lib:..\packages\log4net.2.0.0\lib\net35-full\ /targetplatform:v2 /log /internalize /keyfile:$(AssemblyOriginatorKeyFile) /out:@(MainAssembly) &quot;@(IntermediateAssembly)&quot; @(AssembliesToMerge->'&quot;%(FullPath)&quot;', ' ')" />
  <Delete Files="@(ReferenceCopyLocalPaths->'$(OutDir)%(DestinationSubDirectory)%(Filename)%(Extension)')" />
</Target>

另外,我添加了另一个目标,通过向<ILMerge />我的.csproj文件中的引用添加一个唯一元素来限制合并中包含的程序集列表

<Target Name="AfterResolveReferences">
  <Message Text="Filtering out ILMerge assemblies from ReferenceCopyLocalPaths..." Importance="High" />
  <ItemGroup>
    <ReferenceCopyLocalPaths Remove="@(ReferenceCopyLocalPaths)" Condition="'%(ReferenceCopyLocalPaths.ILMerge)'=='false'" />
  </ItemGroup>
</Target>

因此,列出的参考元素如此容纳:

...
<Reference Include="Ionic.Zip">
  <HintPath>..\packages\DotNetZip.1.9.1.8\lib\net20\Ionic.Zip.dll</HintPath>
  <ILMerge>True</ILMerge>
</Reference>
<Reference Include="log4net">
  <HintPath>..\packages\log4net.2.0.0\lib\net35-full\log4net.dll</HintPath>
  <ILMerge>False</ILMerge>
...

可能有一个更好的(编程式)替代方法,可以明确地将ILMerge = False值添加到/lib交换机,但在我的情况下,由于只有一个被排除的项目就足够了.否则,您可能需要手动添加其他路径.

我列出的'AfterResolveReferences'技术可以归功于http://www.hanselman.com/blog/MixingLanguagesInASingleAssemblyInVisualStudioSeamlesslyWithILMergeAndMSBuild.aspx

希望这有助于某人!