当我在msstild参数或发布配置文件中使用aspnetcompilemerge在VSTS中构建我的asp.net应用程序时，出现以下错误：
MyProject\obj\release\aspnetcompilemerge\source\web.config(129,0): Error ASPCONFIG: The element 'buildProviders' cannot be defined below the application level.
Process 'msbuild.exe' exited with code '1'.
我相信这是参考web.config的这一部分：
<buildProviders>
<add extension=".rdlc" type="Microsoft.Reporting.RdlBuildProvider, Microsoft.ReportViewer.WebForms, Version=14.0.0.0, Culture=neutral, PublicKeyToken=89845DCD8080CC91" />
</buildProviders>
但有两件事情很奇怪 -
1）我对该错误消息的互联网研究显示了部署或运行网站的问题，但我没有部署，只是构建。
2）构建似乎确实成功了。我可以下载工件并将其部署到一个内部Web服务器，输出似乎已按我的发布配置文件中的定义合并。
有任何想法如何解决这个问题？
编辑 - 我能够在新的MVC项目中重现这种情况。
发布个人资料：
<Project ToolsVersion="4.0" xmlns="http://schemas.microsoft.com/developer/msbuild/2003">
<PropertyGroup>
<WebPublishMethod>FileSystem</WebPublishMethod>
<LastUsedBuildConfiguration>Release</LastUsedBuildConfiguration>
<LastUsedPlatform>Any CPU</LastUsedPlatform>
<SiteUrlToLaunchAfterPublish />
<LaunchSiteAfterPublish>True</LaunchSiteAfterPublish>
<PrecompileBeforePublish>True</PrecompileBeforePublish>
<EnableUpdateable>False</EnableUpdateable>
<DebugSymbols>False</DebugSymbols>
<WDPMergeOption>MergeAllOutputsToASingleAssembly</WDPMergeOption>
<UseMerge>True</UseMerge>
<SingleAssemblyName>buildprovidertest.PublishedOutput</SingleAssemblyName>
<DeleteAppCodeCompiledFiles>True</DeleteAppCodeCompiledFiles>
<ExcludeApp_Data>False</ExcludeApp_Data>
<publishUrl>C:\Publish\buildprovidertest</publishUrl>
<DeleteExistingFiles>True</DeleteExistingFiles>
</PropertyGroup>
</Project>
我能够将其缩小到csproj文件中的<MvcBuildViews>节点。如果是true，我收到此错误消息。如果我将其设置为false，则构建成功。
发布整个构建日志超出了stackoverflow的字符限制，但这是结束：
2017-07-31T13:43:32.4134567Z Adding file (d:\a\1\s\buildprovidertest\obj\Release\Package\PackageTmp\Web.config).
2017-07-31T13:43:32.4134567Z Adding ACL's for path (d:\a\1\s\buildprovidertest\obj\Release\Package\PackageTmp)
2017-07-31T13:43:32.4134567Z Adding ACL's for path (d:\a\1\s\buildprovidertest\obj\Release\Package\PackageTmp)
2017-07-31T13:43:32.4204577Z Adding declared parameter 'IIS Web Application Name'.
2017-07-31T13:43:32.4224576Z Adding declared parameter 'DefaultConnection-Web.config Connection String'.
2017-07-31T13:43:32.4904577Z Successfully executed Web deployment task.
2017-07-31T13:43:32.4984583Z Package "buildprovidertest.zip" is successfully created as single file at the following location:
2017-07-31T13:43:32.4984583Z file:///d:/a/1/a
2017-07-31T13:43:32.4984583Z To get the instructions on how to deploy the web package please visit the following link:
2017-07-31T13:43:32.4984583Z http://go.microsoft.com/fwlink/?LinkId=124618
2017-07-31T13:43:32.5184584Z GenerateSampleDeployScript:
2017-07-31T13:43:32.5184584Z Sample script for deploying this package is generated at the following location:
2017-07-31T13:43:32.5184584Z d:\a\1\a\buildprovidertest.deploy.cmd
2017-07-31T13:43:32.5184584Z For this sample script, you can change the deploy parameters by changing the following file:
2017-07-31T13:43:32.5184584Z d:\a\1\a\buildprovidertest.SetParameters.xml
2017-07-31T13:43:32.5184584Z PipelineDeployPhase:
2017-07-31T13:43:32.5184584Z Publish Pipeline Deploy Phase
2017-07-31T13:43:32.6134809Z CleanupForBuildMvcViews:
2017-07-31T13:43:32.6134809Z Deleting file "obj\Release\TransformWebConfig\assist\Web.config".
snip
2017-07-31T13:43:32.6384579Z Deleting file "obj\Release\Package\PackageTmp\Views\Shared\_LoginPartial.cshtml".
2017-07-31T13:43:32.6384579Z MvcBuildViews:
2017-07-31T13:43:32.6384579Z C:\Windows\Microsoft.NET\Framework\v4.0.30319\aspnet_compiler.exe -v temp -p d:\a\1\s\buildprovidertest
2017-07-31T13:43:37.9922053Z ##[error]buildprovidertest\obj\release\aspnetcompilemerge\source\web.config(21,0): Error ASPCONFIG: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS.
2017-07-31T13:43:37.9922053Z d:\a\1\s\buildprovidertest\obj\release\aspnetcompilemerge\source\web.config(21): error ASPCONFIG: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. [d:\a\1\s\buildprovidertest\buildprovidertest.csproj]
2017-07-31T13:43:37.9922053Z Done Building Project "d:\a\1\s\buildprovidertest\buildprovidertest.csproj" (default targets) -- FAILED.
2017-07-31T13:43:37.9932061Z Done Building Project "d:\a\1\s\buildprovidertest.sln" (buildprovidertest target(s)) -- FAILED.
2017-07-31T13:43:37.9932061Z
2017-07-31T13:43:37.9932061Z Build FAILED.
2017-07-31T13:43:38.0012046Z
2017-07-31T13:43:38.0012046Z "d:\a\1\s\buildprovidertest.sln" (buildprovidertest target) (1) ->
2017-07-31T13:43:38.0012046Z "d:\a\1\s\buildprovidertest\buildprovidertest.csproj" (default target) (2) ->
2017-07-31T13:43:38.0012046Z (MvcBuildViews target) ->
2017-07-31T13:43:38.0012046Z d:\a\1\s\buildprovidertest\obj\release\aspnetcompilemerge\source\web.config(21): error ASPCONFIG: It is an error to use a section registered as allowDefinition='MachineToApplication' beyond application level. This error can be caused by a virtual directory not being configured as an application in IIS. [d:\a\1\s\buildprovidertest\buildprovidertest.csproj]
2017-07-31T13:43:38.0012046Z
2017-07-31T13:43:38.0012046Z 0 Warning(s)
2017-07-31T13:43:38.0012046Z 1 Error(s)
2017-07-31T13:43:38.0012046Z
2017-07-31T13:43:38.0012046Z Time Elapsed 00:00:55.07
2017-07-31T13:43:38.1372049Z ##[error]Process 'msbuild.exe' exited with code '1'.
2017-07-31T13:43:38.1882046Z ##[section]Finishing: Build solution
答案 0 :(得分：1)
使用该设置，您也无法通过VS 2015发布它。
将此代码添加到项目文件（xx.csproj）：
<Target Name="MvcBuildViews" AfterTargets="AfterBuild" Condition="'$(MvcBuildViews)'=='true'">
<AspNetCompiler VirtualPath="temp" PhysicalPath="$(WebProjectOutputDir)" />
</Target>
<Target Name="AfterBuild">
<RemoveDir Directories="$(BaseIntermediateOutputPath)" />
</Target>