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Visual Studio 2019 编译.Net Core Console项目出现【MSB4018 The 'CreateAppHost' task failed unexpectedly】 错误

pansiu 2019-12-28 18:42:00 阅读数:393 评论数:0 点赞数:0 收藏数:0

需要测试一个小东东,使用Visual Studio 2019新建了一个.Net Core的Console程序,但是在编译的时候一直报错,死活编译不通过。

错误信息:

Severity Code Description Project File Line Suppression State
Error MSB4018 The "CreateAppHost" task failed unexpectedly.
System.AggregateException: One or more errors occurred. ---> Microsoft.NET.HostModel.HResultException: 8007006E
at Microsoft.NET.HostModel.ResourceUpdater.Update()
at Microsoft.NET.HostModel.AppHost.HostWriter.<>c__DisplayClass2_0.<CreateAppHost>g__UpdateResources|1()
at Microsoft.NET.HostModel.RetryUtil.RetryOnWin32Error(Action func)
at Microsoft.NET.HostModel.AppHost.HostWriter.CreateAppHost(String appHostSourceFilePath, String appHostDestinationFilePath, String appBinaryFilePath, Boolean windowsGraphicalUserInterface, String assemblyToCopyResorcesFrom)
--- End of inner exception stack trace ---
at Microsoft.NET.HostModel.AppHost.HostWriter.CreateAppHost(String appHostSourceFilePath, String appHostDestinationFilePath, String appBinaryFilePath, Boolean windowsGraphicalUserInterface, String assemblyToCopyResorcesFrom)
at Microsoft.NET.Build.Tasks.CreateAppHost.ExecuteCore()
at Microsoft.NET.Build.Tasks.TaskBase.Execute()
at Microsoft.Build.BackEnd.TaskExecutionHost.Microsoft.Build.BackEnd.ITaskExecutionHost.Execute()
at Microsoft.Build.BackEnd.TaskBuilder.<ExecuteInstantiatedTask>d__26.MoveNext()
---> (Inner Exception #0) Microsoft.NET.HostModel.HResultException: 8007006E
at Microsoft.NET.HostModel.ResourceUpdater.Update()
at Microsoft.NET.HostModel.AppHost.HostWriter.<>c__DisplayClass2_0.<CreateAppHost>g__UpdateResources|1()
at Microsoft.NET.HostModel.RetryUtil.RetryOnWin32Error(Action func)
at Microsoft.NET.HostModel.AppHost.HostWriter.CreateAppHost(String appHostSourceFilePath, String appHostDestinationFilePath, String appBinaryFilePath, Boolean windowsGraphicalUserInterface, String assemblyToCopyResorcesFrom)<---
---> (Inner Exception #1) System.UnauthorizedAccessException: Access to the path 'D:\VS2019Code\Projects\ConsoleApp9\ConsoleApp9\obj\Debug\netcoreapp3.1\ConsoleApp9.exe' is denied.
at System.IO.__Error.WinIOError(Int32 errorCode, String maybeFullPath)
at System.IO.File.InternalDelete(String path, Boolean checkHost)
at System.IO.File.Delete(String path)
at Microsoft.NET.HostModel.AppHost.HostWriter.CreateAppHost(String appHostSourceFilePath, String appHostDestinationFilePath, String appBinaryFilePath, Boolean windowsGraphicalUserInterface, String assemblyToCopyResorcesFrom)<---
ConsoleApp9 C:\Program Files\dotnet\sdk\3.1.100\Sdks\Microsoft.NET.Sdk\targets\Microsoft.NET.Sdk.targets 393

网上的方案有如下,也都进行了尝试:

  • 重启Visual Studio
  • 以管理员身份运行Visual Studio
  • 清理解决方案
  • 删除bin目录下的所有文件

然鹅,均无效,无奈之下继续寻找解决方案,发现用Process Monitor来监控到底是谁在搞鬼。

点击下载 Process Monitor.

终于发现了罪魁祸首。

原来是你,让我花了我一个上午的时间在折腾。

立马干掉

果然,一切编译正常,大功告成。

版权声明
本文为[pansiu]所创,转载请带上原文链接,感谢
https://www.cnblogs.com/hand/p/12112647.html