在我的情况下,答案是微不足道的——从一开始就不是错误。对我来说,ASP.NET 实际上每次启动我的 Web 应用程序时都会在内部抛出这个,我只是偶然忘记了“所有异常中断”设置(来自另一个调试会话)。我检查了它,一切正常。
作为参考,这里是堆栈跟踪:
> mscorlib.dll!System.IO.__Error.WinIOError(int errorCode, string maybeFullPath) Unknown
mscorlib.dll!System.IO.FileStream.Init(string path, System.IO.FileMode mode, System.IO.FileAccess access, int rights, bool useRights, System.IO.FileShare share, int bufferSize, System.IO.FileOptions options, Microsoft.Win32.Win32Native.SECURITY_ATTRIBUTES secAttrs, string msgPath, bool bFromProxy, bool useLongPath, bool checkHost) Unknown
mscorlib.dll!System.IO.FileStream.FileStream(string path, System.IO.FileMode mode, System.IO.FileAccess access, System.IO.FileShare share, int bufferSize, System.IO.FileOptions options, string msgPath, bool bFromProxy) Unknown
mscorlib.dll!System.IO.FileStream.FileStream(string path, System.IO.FileMode mode) Unknown
System.Web.dll!System.Web.UI.Util.HasWriteAccessToDirectory(string dir) Unknown
System.Web.dll!System.Web.HttpRuntime.SetUpCodegenDirectory(System.Web.Configuration.CompilationSection compilationSection) Unknown
System.Web.dll!System.Web.HttpRuntime.HostingInit(System.Web.Hosting.HostingEnvironmentFlags hostingFlags, System.Security.Policy.PolicyLevel policyLevel, System.Exception appDomainCreationException) Unknown
System.Web.dll!System.Web.HttpRuntime.InitializeHostingFeatures(System.Web.Hosting.HostingEnvironmentFlags hostingFlags, System.Security.Policy.PolicyLevel policyLevel, System.Exception appDomainCreationException) Unknown
System.Web.dll!System.Web.Hosting.HostingEnvironment.Initialize(System.Web.Hosting.ApplicationManager appManager, System.Web.Hosting.IApplicationHost appHost, System.Web.Configuration.IConfigMapPathFactory configMapPathFactory, System.Web.Hosting.HostingEnvironmentParameters hostingParameters, System.Security.Policy.PolicyLevel policyLevel, System.Exception appDomainCreationException) Unknown
System.Web.dll!System.Web.Hosting.HostingEnvironment.Initialize(System.Web.Hosting.ApplicationManager appManager, System.Web.Hosting.IApplicationHost appHost, System.Web.Configuration.IConfigMapPathFactory configMapPathFactory, System.Web.Hosting.HostingEnvironmentParameters hostingParameters, System.Security.Policy.PolicyLevel policyLevel) Unknown
[AppDomain (DefaultDomain, #1) -> AppDomain (/LM/W3SVC/4/ROOT-1-130624548490751465, #2)]
System.Web.dll!System.Web.Hosting.ApplicationManager.CreateAppDomainWithHostingEnvironment(string appId, System.Web.Hosting.IApplicationHost appHost, System.Web.Hosting.HostingEnvironmentParameters hostingParameters) Unknown
System.Web.dll!System.Web.Hosting.ApplicationManager.CreateAppDomainWithHostingEnvironmentAndReportErrors(string appId, System.Web.Hosting.IApplicationHost appHost, System.Web.Hosting.HostingEnvironmentParameters hostingParameters) Unknown
System.Web.dll!System.Web.Hosting.ApplicationManager.GetAppDomainWithHostingEnvironment(string appId, System.Web.Hosting.IApplicationHost appHost, System.Web.Hosting.HostingEnvironmentParameters hostingParameters) Unknown
System.Web.dll!System.Web.Hosting.ApplicationManager.CreateObjectInternal(string appId, System.Type type, System.Web.Hosting.IApplicationHost appHost, bool failIfExists, System.Web.Hosting.HostingEnvironmentParameters hostingParameters) Unknown
System.Web.dll!System.Web.Hosting.ProcessHost.StartApplication(string appId, string appPath, out object runtimeInterface) Unknown