Visual studio 2017 Visual studio 2017将web项目发布到文件夹失败

将web项目发布到文件夹时，日志中将弹出以下错误

....
Publishing folder /...
Publishing folder bin...
Publishing folder bin/es...
Publishing folder bin/roslyn...
Unable to add 'bin/roslyn/System.IO.FileSystem.dll' to the Web site.  Unable to add file 'bin\roslyn\System.IO.FileSystem.dll'.  The process cannot access the file because it is being used by another process.
Unable to add 'bin/roslyn/System.IO.FileSystem.Primitives.dll' to the Web site.  Unable to add file 'bin\roslyn\System.IO.FileSystem.Primitives.dll'.  The process cannot access the file because it is being used by another process.
Unable to add 'bin/roslyn/System.Reflection.Metadata.dll' to the Web site.  Unable to add file 'bin\roslyn\System.Reflection.Metadata.dll'.  The process cannot access the file because it is being used by another process.
Unable to add 'bin/roslyn/System.Security.Cryptography.Algorithms.dll' to the Web site.  Unable to add file 'bin\roslyn\System.Security.Cryptography.Algorithms.dll'.  The process cannot access the file because it is being used by another process.
Unable to add 'bin/roslyn/System.Security.Cryptography.Primitives.dll' to the Web site.  Unable to add file 'bin\roslyn\System.Security.Cryptography.Primitives.dll'.  The process cannot access the file because it is being used by another process.
Unable to add 'bin/roslyn/System.ValueTuple.dll' to the Web site.  Unable to add file 'bin\roslyn\System.ValueTuple.dll'.  The process cannot access the file because it is being used by another process.
Unable to add 'bin/roslyn/VBCSCompiler.exe' to the Web site.  Unable to add file 'bin\roslyn\VBCSCompiler.exe'.  The process cannot access the file because it is being used by another process.
Publishing folder bin/zh...
...
Publishing folder Views/WFDefs...
Publish failed. Target file://machine/d$/PATH.

如果我使用web publish发布，它可以工作，但真正的目标不支持web发布

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注意：VBCSCompiler未运行。

在Visual Studio 2017社区版中也有同样的问题。当你的问题出现在谷歌上但没有答案时，我想我应该补充一下

我发现他帮了我很多

打开sysinternals并转到查找->查找句柄或DLL。。。或（Ctrl+F）并搜索保持打开状态的文件。在我的例子中是“System.IO.FileSystem.dll”

搜索结果显示，两个MSBuild实例和一个VBCSCompiler挂在文件上。最糟糕的情况是，我刚刚杀死了流程树，构建了项目，一切又恢复了正常

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相关回答：

我在Visual Studio community 2017的应用程序中遇到了同样的问题。在我的例子中，解决方案很简单，我只删除了目录bin（C:\Projects\DotNet\ApplicationName\bin）中的所有文件，然后重新编译应用程序

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我希望它能对您有所帮助。

如果您试图在Azure中发布asp.net web应用程序并出现上述错误，请尝试将Microsoft.CodeDom.Providers.DotNetCompilerPlatform包更新到V1.0.7或更高版本。最初，在您的应用程序中，将有Microsoft.CodeDom.Providers.DotNetCompilerPlatform版本1.0.5，然后卸载并安装最新版本1.0.7或更高版本。清理您的解决方案并构建。现在，您将能够使用Visual Studio 2017在Azure中发布您的web应用。