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

如何解决无法加载文件或程序集Sapnco vstest Azure Pipelines

在Azure管道中使用Release阶段的自动化测试从测试计划中运行测试时，我们遇到失败“无法加载文件或程序集'sapnco，版本= 3.0.0.42，Culture = neutral，PublicKeyToken = 50436dca5c7f7d23'或其依赖项之一。系统找不到指定的文件。“

由于这是一个64位dll，我们在Vstest任务中提供了/ Platform：x64选项。以下是发布管道中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

即使测试是独立运行的，我们也会遇到相同的错误。

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,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,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,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.

该dll位于融合日志中尝试进行下载的位置。

我们不确定如何解决此错误。我们也将构建平台从任何cpu更改为x64。解决该问题的方法是什么？

解决方法

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

由于您是在Release阶段运行测试，因此应确保程序集文件sapnco.dll在构建工件中，以便可以将其下载到Release管道中。

您可以检查文件夹C:/AzAgent/A1/_work/r1/a/_Development/bin/Release中的程序集文件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，请确保您使用的是软件包sapnco3.x64而不是用于x64的sapnco。

更新：

我仔细检查了测试任务后，发现选择的测试使用的是Test run而不是Test assemblies，测试运行：

在设置运行测试的环境时使用此选项 从测试中心。 运行测试时不应使用此选项 在持续集成/持续部署（CI / CD）管道中。

要解决此问题，请尝试使用Test assemblies。