VSTS CI - ASP.NET Core 1.1 的构建失败 - Microsoft.Build.Utilities.v4.0 未找到

Question

我为使用 Azure AD B2C 的 ASP.NET Core 1.1 项目设置了 CI（来自本例 - https://github.com/Azure-Samples/active-directory-b2c-dotnetcore-webapp）。所以这是我在 .csproj 文件中的内容：

<Project Sdk="Microsoft.NET.Sdk.Web">

  <PropertyGroup>
    <TargetFramework>netcoreapp1.1</TargetFramework>
    <MvcRazorCompileOnPublish>true</MvcRazorCompileOnPublish>
    <PreserveCompilationContext>true</PreserveCompilationContext>
  </PropertyGroup>

  <PropertyGroup>
    <PackageTargetFallback>$(PackageTargetFallback);portable-net45+win8+wp8+wpa81;</PackageTargetFallback>
  </PropertyGroup>

  <ItemGroup>
...
  </ItemGroup>
  <ItemGroup>
    <PackageReference Include="BuildWebCompiler" Version="1.11.326" />
    <PackageReference Include="Microsoft.ApplicationInsights.AspNetCore" Version="2.0.1" />
    <PackageReference Include="Microsoft.AspNetCore" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.Cookies" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Authentication.OpenIdConnect" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc" Version="1.1.3" />
    <PackageReference Include="Microsoft.AspNetCore.Mvc.Razor.ViewCompilation" Version="1.1.1" />
    <PackageReference Include="Microsoft.AspNetCore.Rewrite" Version="1.0.2" />
    <PackageReference Include="Microsoft.AspNetCore.Session" Version="1.1.2" />
    <PackageReference Include="Microsoft.AspNetCore.StaticFiles" Version="1.1.2" />
    <PackageReference Include="Microsoft.Extensions.Logging.Debug" Version="1.1.2" />
    <PackageReference Include="Microsoft.Identity.Client" Version="1.1.0-preview" />
    <PackageReference Include="Microsoft.VisualStudio.Web.BrowserLink" Version="1.1.2" />
  </ItemGroup>
  <ItemGroup>
    <DotNetCliToolReference Include="Microsoft.VisualStudio.Web.CodeGeneration.Tools" Version="1.0.1" />
  </ItemGroup>

</Project>

当我转到 VSTS 时，我看到以下错误日志：

---

Starting: Build

******************************************************************************

Task : .NET Core Description : Build, test and publish using dotnet core command-line. Version : 1.0.2 Author : Microsoft Corporation

Help : More Information

"C:\Program Files\dotnet\dotnet.exe" build d:\a\s\MMLServices\MMLServices.csproj --configuration release Microsoft (R) Build Engine version 15.1.1012.6693 Copyright (C) Microsoft Corporation. All rights reserved.

C:\Users\buildguest.nuget\packages\buildwebcompiler.11.326\build\BuildWebCompiler.targets(15,9): error MSB4062: The "WebCompiler.CompilerBuildTask" task could not be loaded from the assembly C:\Users\buildguest.nuget\packages\buildwebcompiler.11.326\build..\tools\WebCompiler.exe. Could not load file or assembly 'Microsoft.Build.Utilities.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [d:\a\s\MMLServices\MMLServices.csproj]

Build FAILED.

C:\Users\buildguest.nuget\packages\buildwebcompiler.11.326\build\BuildWebCompiler.targets(15,9): error MSB4062: The "WebCompiler.CompilerBuildTask" task could not be loaded from the assembly C:\Users\buildguest.nuget\packages\buildwebcompiler.11.326\build..\tools\WebCompiler.exe. Could not load file or assembly 'Microsoft.Build.Utilities.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [d:\a\s\MMLServices\MMLServices.csproj] 0 Warning(s) 1 Error(s)

Time Elapsed 00:00:03.66 Error: C:\Program Files\dotnet\dotnet.exe failed with return code: 1 Dotnet command failed with non-zero exit code on the following projects : d:\a\s\MMLServices\MMLServices.csproj

那么，我该如何解决这个问题？

更新：

我添加了 debug=true，这是之后的日志（发布任务）：

2017-06-20T15:23:36.6048010Z [command]"C:\Program Files\dotnet\dotnet.exe" publish d:\a\s\MMLServices\MMLServices.csproj --configuration release --output d:\a\a\MMLServices 2017-06-20T15:23:36.7748032Z Microsoft (R) Build Engine version 15.1.1012.6693 2017-06-20T15:23:36.7758030Z Copyright (C) Microsoft Corporation. All rights reserved. 2017-06-20T15:23:36.7758030Z 2017-06-20T15:23:37.3732835Z C:\Users\buildguest.nuget\packages\buildwebcompiler.11.326\build\BuildWebCompiler.targets(15,9): error MSB4062: The "WebCompiler.CompilerBuildTask" task could not be loaded from the assembly C:\Users\buildguest.nuget\packages\buildwebcompiler.11.326\build..\tools\WebCompiler.exe. Could not load file or assembly 'Microsoft.Build.Utilities.v4.0, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b03f5f7f11d50a3a'. The system cannot find the file specified. Confirm that the declaration is correct, that the assembly and all its dependencies are available, and that the task contains a public class that implements Microsoft.Build.Framework.ITask. [d:\a\s\MMLServices\MMLServices.csproj] 2017-06-20T15:23:37.3943585Z ##[debug]rc:1 2017-06-20T15:23:37.3943585Z ##[debug]success:false 2017-06-20T15:23:37.3973597Z ##[error]Error: C:\Program Files\dotnet\dotnet.exe failed with return code: 1 2017-06-20T15:23:37.3973597Z ##[debug]Processed: ##vso[task.issue type=error;]Error: C:\Program Files\dotnet\dotnet.exe failed with return code: 1 2017-06-20T15:23:37.4003593Z ##[debug]task result: Failed 2017-06-20T15:23:37.4003593Z ##[error]Dotnet command failed with non-zero exit code on the following projects : d:\a\s\MMLServices\MMLServices.csproj 2017-06-20T15:23:37.4003593Z ##[debug]Processed: ##vso[task.issue type=error;]Dotnet command failed with non-zero exit code on the following projects : d:\a\s\MMLServices\MMLServices.csproj 2017-06-20T15:23:37.4034692Z ##[debug]Processed: ##vso[task.complete result=Failed;]Dotnet command failed with non-zero exit code on the following projects : d:\a\s\MMLServices\MMLServices.csproj 2017-06-20T15:23:37.4073330Z ##[section]Finishing: Publish

Answer 1

问题与使用 BuildWebCompiler 包进行构建有关。您可以改用 Visual Studio 构建任务：

1. 删除 .NET Core 构建任务
2. 添加Visual Studio构建任务（解决方案：***.sln；Visual Studio版本：Visual Studio2017）

更新：

关于发布，可以参考这些步骤（不能使用dotnet publish）：

1. 在 Visual Studio 中创建网络部署包发布配置文件并添加到源代码管理

样本：

<?xml version="1.0" encoding="utf-8"?>
<!--
This file is used by the publish/package process of your Web project. You can customize the behavior of this process
by editing this MSBuild file. In order to learn more about this please visit https://go.microsoft.com/fwlink/?LinkID=208121. 
-->
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
  <PropertyGroup>
    <WebPublishMethod>Package</WebPublishMethod>
    <LastUsedBuildConfiguration>Release</LastUsedBuildConfiguration>
    <LastUsedPlatform>Any CPU</LastUsedPlatform>
    <SiteUrlToLaunchAfterPublish />
    <LaunchSiteAfterPublish>True</LaunchSiteAfterPublish>
    <ExcludeApp_Data>False</ExcludeApp_Data>
    <PublishFramework>netcoreapp1.1</PublishFramework>
    <ProjectGuid>6ecb453c-aea3-44af-8185-059fbac7b56c</ProjectGuid>
    <DesktopBuildPackageLocation>E:\yy\WebApp-OpenIDConnect-DotNet.zip</DesktopBuildPackageLocation>
    <PackageAsSingleFile>true</PackageAsSingleFile>
    <DeployIisAppPath>Default Web Site/tt</DeployIisAppPath>
    <PublishDatabaseSettings>
      <Objects xmlns="" />
    </PublishDatabaseSettings>
  </PropertyGroup>
</Project>

2. 删除 .NET Core 任务（例如发布、构建）
3. 为 Visual Studio 构建任务指定此 MSBuild 参数

:

/p:DeployOnBuild=true /p:PublishProfile=[publish profile];DesktopBuildPackageLocation="$(build.artifactstagingdirectory)\WebApp-OpenIDConnect-DotNet.zip"

Answer 2

好的，我删除了构建定义并添加了一个新定义 - 这次使用 ASP.NET Core (.NET Framework) 模板并且一切正常。