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在使用发布阶段的自动化测试从 Azure Pipeline 中的测试计划运行测试时，我们遇到错误“无法加载文件或程序集 'sapnco, Version=3.0.0.42, Culture=neutral, PublicKeyToken=50436dca5c7f7d23' 或其中之一它的依赖关系。系统找不到指定的文件。”

由于这是一个 64 位的 dll，我们在 Vstest 任务中提供了 /Platform:x64 选项。下面是发布管道中 VsTest 任务的 yaml：

steps:
- task: VSTest@2
  displayName: 'VsTest - Test Run on Demand for ETL Tests'
  inputs:
    testSelector: testRun
    searchFolder: '$(System.DefaultWorkingDirectory)\_Development\bin\Release'
    vsTestVersion: toolsInstaller
    pathtoCustomTestAdapters: '$(System.DefaultWorkingDirectory)\_Development\packages\'
    runTestsInIsolation: false
    otherConsoleOptions: '/Platform:x64'
    platform: x64
    configuration: Release
  continueOnError: true

即使测试是单独运行的，我们也会遇到同样的错误。

Reflection LoaderExceptions 融合日志如下：

Reflection error message is: Could not load file or assembly 'sapnco, Version=3.0.0.42, Culture=neutral, PublicKeyToken=50436dca5c7f7d23' or one of its dependencies. The system cannot find the file specified.
Fusion Log:
Assembly manager loaded from:  C:\Windows\Microsoft.NET\Framework\v4.0.30319\clr.dll
Running under executable  C:\AzAgent\A1\_work\_tool\VsTest\16.7.1\x64\tools\net451\Common7\IDE\Extensions\TestPlatform\testhost.x86.exe
--- A detailed error log follows. 

=== Pre-bind state information ===
LOG: DisplayName = sapnco, Version=3.0.0.42, Culture=neutral, PublicKeyToken=50436dca5c7f7d23
 (Fully-specified)
LOG: Appbase = file:///C:/AzAgent/A1/_work/r1/a/_Development/packages/MSTest.TestAdapter.1.4.0/build/_common
LOG: Initial PrivatePath = NULL
Calling assembly : <calling assembly>, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null.
===
LOG: This bind starts in LoadFrom load context.
WRN: Native image will not be probed in LoadFrom context. Native image will only be probed in default load context, like with Assembly.Load().
LOG: Using application configuration file: C:\AzAgent\A1\_work\r1\a\_Development\bin\Release\<test dll>.config
LOG: Using host configuration file: 
LOG: Using machine configuration file from C:\Windows\Microsoft.NET\Framework\v4.0.30319\config\machine.config.
LOG: Post-policy reference: sapnco, Version=3.0.0.42, Culture=neutral, PublicKeyToken=50436dca5c7f7d23
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/packages/MSTest.TestAdapter.1.4.0/build/_common/sapnco.DLL.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/packages/MSTest.TestAdapter.1.4.0/build/_common/sapnco/sapnco.DLL.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/packages/MSTest.TestAdapter.1.4.0/build/_common/sapnco.EXE.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/packages/MSTest.TestAdapter.1.4.0/build/_common/sapnco/sapnco.EXE.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/bin/Release/sapnco.DLL.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/bin/Release/sapnco/sapnco.DLL.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/bin/Release/sapnco.EXE.
LOG: Attempting download of new URL file:///C:/AzAgent/A1/_work/r1/a/_Development/bin/Release/sapnco/sapnco.EXE.

dll 存在于融合日志中尝试下载的位置。

我们不确定如何修复此错误。我们也将构建平台从 Any CPU 更改为 x64。问题的解决方案是什么？

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1 回答 1

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无法加载文件或程序集 sapnco vstest Azure Pipelines

由于您正在从发布阶段运行测试，因此您应该确保程序集文件sapnco.dll在您的构建工件中，以便可以将其下载到发布管道。

您可以检查C:/AzAgent/A1/_work/r1/a/_Development/bin/Release程序集文件的文件夹sapnco.dll。

如果该 dll 文件不存在，则需要将其复制并发布为工件。

另一点是确保您使用的是包sapnco3.x64而不是 sapnco，后者用于x64.

更新：

在我仔细检查了您的测试任务后，我发现您的选择测试使用的是Test run而不是Test assemblies，测试运行：

在设置环境以从测试中心运行测试时使用此选项。在持续集成/持续部署 (CI/CD) 管道中运行测试时，不应使用此选项。

在此处输入图像描述

要解决此问题，请尝试使用Test assemblies.

于 2020-10-26T03:32:41.563 回答