无法加载文件或程序集...但一开始就不行?

JRo*_*ies 4 .net c# powershell .net-assembly veeam

我有一个用于存档 Exchange 邮箱的 C# / .NET Windows 服务,并且我最近“打包”了 Veeam O365 Backup DLL,以便能够自动备份 Exchange Online 邮箱。

我将向您展示一些日志,显示该程序运行一段时间没有问题,然后开始突然失败并出现错误:

  • “无法加载文件或程序集“System.IO.Compression,Version=4.2.0.0,Culture=neutral,PublicKeyToken=b77a5c561934e089”或其依赖项之一。找到的程序集的清单定义与程序集引用不匹配。 “

...直到服务重新启动:

(参见Edit1,我的图片被覆盖了)

堆栈跟踪:

System.Management.Automation.CmdletInvocationException: Could not load file or assembly 'System.IO.Compression, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040) ---> System.IO.FileLoadException: Could not load file or assembly 'System.IO.Compression, Version=4.2.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' or one of its dependencies. The located assembly's manifest definition does not match the assembly reference. (Exception from HRESULT: 0x80131040)
   at Veeam.Core.FileLoggerTransport.AutoArchive()
   at Veeam.Core.FileLoggerTransport.ArchiveAndDelete()
   at Veeam.Core.FileLoggerTransport.ControlLogSize()
   at Veeam.Core.FileLoggerTransport.WriteLine(UInt32 level, String message)
   at Veeam.Core.LoggerTransport.LogDefault(UInt32 level, String message, Object[] args)
   at Veeam.PowerShell.Core.BasePSCmdlet.BeginProcessing()
   at System.Management.Automation.Cmdlet.DoBeginProcessing()
   at System.Management.Automation.CommandProcessorBase.DoBegin()
   --- End of inner exception stack trace ---
   at System.Management.Automation.Runspaces.PipelineBase.Invoke(IEnumerable input)
   at System.Management.Automation.PowerShell.Worker.ConstructPipelineAndDoWork(Runspace rs, Boolean performSyncInvoke)
   at System.Management.Automation.PowerShell.Worker.CreateRunspaceIfNeededAndDoWork(Runspace rsToUse, Boolean isSync)
   at System.Management.Automation.PowerShell.CoreInvokeHelper[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.CoreInvoke[TInput,TOutput](PSDataCollection`1 input, PSDataCollection`1 output, PSInvocationSettings settings)
   at System.Management.Automation.PowerShell.Invoke(IEnumerable input, PSInvocationSettings settings)
   at VeeamArchiverConnector.VeeamArchiverConnector.ConnectToVeeamServer(String serverName, Int32 port)
   at REMOVED.DeprovisionObject.DeprovisionOnline(String deprovisioningOu) in C:\Users\REMOVED\Source\Repos\ExchangeProvisioning\Deprovisioning\DeprovisionObject.cs:line 442
   at REMOVED.DeprovisionObject.Start() in C:\Users\REMOVED\Source\Repos\ExchangeProvisioning\Deprovisioning\DeprovisionObject.cs:line 125 
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该项目确实引用了System.IO.Compression,但:

  • Nuget 包版本是“4.3.0”
  • 参考上的版本是“4.1.2.0”
  • 构建后的文件版本为“4.6.24704”

在我的 .csproj 文件中,我有以下内容:

<Reference Include="System.IO.Compression, Version=4.1.2.0, Culture=neutral, PublicKeyToken=b77a5c561934e089, processorArchitecture=MSIL">
      <HintPath>..\packages\System.IO.Compression.4.3.0\lib\net46\System.IO.Compression.dll</HintPath>
      <Private>True</Private>
      <Private>True</Private>
</Reference>
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我无权访问“Veeam.Core.*”的代码/项目,因为它们是 Veeam O365 备份安装程序附带的 Veeam DLL。

但总的来说,我不明白的是,它会工作一段时间(通常大约一两个小时),然后错误就会开始,除非我重新启动服务?

欢迎任何建议!

谢谢


编辑1:

我在“Veeam Connector”项目中添加了更多日志和自定义异常抛出,但这是同一件事:最终错误仍然是关于 System.IO.Compression 丢失,并且输入从未改变:

详细的日志和步骤

即使有自定义异常,仍然存在相同的错误

JRo*_*ies 6

@howheng 谢谢!这就成功了,服务运行了多个小时,没有出现任何问题。

所以问题是这样的绑定:

<assemblyIdentity name="System.IO.Compression" publicKeyToken="b77a5c561934e089" culture="neutral" /> <bindingRedirect oldVersion="0.0.0.0-4.2.0.0" newVersion="4.2.0.0" />
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那是重定向到 4.2.0.0。我假设它在我唯一的 .NETFramework 项目上很好,但正如您所提到的,.NETStandard System.IO.Compression 强制使用版本 4.1.2.0,并且在安装时没有更新绑定 > 所以它现在试图找到 4.2。 0.0,已经不复存在,只有 4.1.2.0。

将绑定更新为“newVersion=4.1.2.0”就可以了!