Visual Studio 2019 编译.Net Core Console项目出现MSB4018 The "CreateAppHost" task failed unexpec(
追风赶月莫停留,平芜尽处是春山。这篇文章主要讲述Visual Studio 2019 编译.Net Core Console项目出现MSB4018 The "
CreateAppHost"
task failed unexpec(相关的知识,希望能为你提供帮助。
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
ErrorMSB4018 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:VS2019CodeProjectsConsoleApp9ConsoleApp9objDebug
etcoreapp3.1ConsoleApp9.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 Filesdotnetsdk3.1.100SdksMicrosoft.NET.Sdk argetsMicrosoft.NET.Sdk.targets393
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
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。
文章图片
原来是你,让我花了我一个上午的时间在折腾。
立马干掉
文章图片
果然,一切编译正常,大功告成。
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