HTTP 503：服務不可用

Question

我有一個MVC應用程序，可以在本地完美運行。 但是，在將其上傳到主機服務器后，該域現在返回“ http 503”錯誤； 我多次從內部重新發布了該項目，但問題仍然存在。

另一個問題中的一個人說這是崩潰問題，盡管自從我的應用程序開始運行以來，該怎么辦？

調試之后，我得到了輸出，這里是：

'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.Web\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.ApplicationServices\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.ApplicationServices.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: Domain 2): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\mscorlib\v4.0_4.0.0.0__b77a5c561934e089\mscorlib.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.Web\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System\v4.0_4.0.0.0__b77a5c561934e089\System.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Core\v4.0_4.0.0.0__b77a5c561934e089\System.Core.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.ApplicationServices\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.ApplicationServices.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Configuration\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Configuration.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Caching\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.Caching.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Caching\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Runtime.Caching.dll'. Symbols loaded.
A first chance exception of type 'System.UnauthorizedAccessException' occurred in mscorlib.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Build.Utilities.v4.0\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.Build.Utilities.v4.0.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Build.Utilities.v4.0\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.Build.Utilities.v4.0.dll'. Symbols loaded.
A first chance exception of type 'System.Globalization.CultureNotFoundException' occurred in mscorlib.dll
A first chance exception of type 'System.Security.SecurityException' occurred in mscorlib.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.JScript\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.JScript.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.CSharp\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.CSharp.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data\v4.0_4.0.0.0__b77a5c561934e089\System.Data.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Services\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.Services.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Drawing\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Drawing.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.IdentityModel\v4.0_4.0.0.0__b77a5c561934e089\System.IdentityModel.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.Serialization\v4.0_4.0.0.0__b77a5c561934e089\System.Runtime.Serialization.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel\v4.0_4.0.0.0__b77a5c561934e089\System.ServiceModel.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activation\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activation.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Web\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Web.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.Activities.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Activities.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.WorkflowServices\v4.0_4.0.0.0__31bf3856ad364e35\System.WorkflowServices.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Extensions\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.Extensions.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Data.DataSetExtensions\v4.0_4.0.0.0__b77a5c561934e089\System.Data.DataSetExtensions.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xml.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Xml.Linq.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ComponentModel.DataAnnotations\v4.0_4.0.0.0__31bf3856ad364e35\System.ComponentModel.DataAnnotations.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.DynamicData\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.DynamicData.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\2982373d\e9af3651_2356d001\Antlr3.Runtime.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\432d1386\2fd0ecf8_9a71d001\BytsNBytes.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\1ef4f0eb\63b1025d_0f6fd001\EntityFramework.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\663b60c3\0860055d_0f6fd001\EntityFramework.SqlServer.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\c4d82047\23cd0856_2356d001\Microsoft.AspNet.Identity.Core.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\2df2459a\77b73356_2356d001\Microsoft.AspNet.Identity.EntityFramework.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\39a24ccf\a7a42056_2356d001\Microsoft.AspNet.Identity.Owin.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\395e37e1\cba15e56_2356d001\Microsoft.Owin.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\7256d552\a9db7856_2356d001\Microsoft.Owin.Host.SystemWeb.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\631df137\cdd8b656_2356d001\Microsoft.Owin.Security.Cookies.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\660764ab\2db39056_2356d001\Microsoft.Owin.Security.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\04a05fba\5728a656_2356d001\Microsoft.Owin.Security.Facebook.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\0f1eb96d\53e72657_2356d001\Microsoft.Owin.Security.Google.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\02319735\f30c4d57_2356d001\Microsoft.Owin.Security.MicrosoftAccount.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\bb7f228b\9debc956_2356d001\Microsoft.Owin.Security.OAuth.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\8308f0ae\7d5c3c57_2356d001\Microsoft.Owin.Security.Twitter.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Web.Infrastructure\v4.0_1.0.0.0__31bf3856ad364e35\Microsoft.Web.Infrastructure.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\59b1a30b\49d5dc50_2356d001\Newtonsoft.Json.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\b89a07dd\ed674456_2356d001\Owin.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\74daad53\c1dae04f_2356d001\System.Web.Helpers.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\0be1ebdb\c93e4450_2356d001\System.Web.Mvc.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\a44139a0\bfa3884f_2356d001\System.Web.Optimization.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\d406d2b5\e0c53f4f_2356d001\System.Web.Razor.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\d31b065d\759fe54f_2356d001\System.Web.WebPages.Deployment.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\7c9c6215\2964ea4f_2356d001\System.Web.WebPages.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\46c5e003\83c6ec4f_2356d001\System.Web.WebPages.Razor.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\assembly\dl3\be087d70\89d55c51_2356d001\WebGrease.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.VisualStudio.Web.PageInspector.Loader\v4.0_1.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Web.PageInspector.Loader.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.WebPages.Deployment\v4.0_2.0.0.0__31bf3856ad364e35\System.Web.WebPages.Deployment.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xaml\v4.0_4.0.0.0__b77a5c561934e089\System.Xaml.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.VisualStudio.Web.PageInspector.Runtime\v4.0_2.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Web.PageInspector.Runtime.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.VisualStudio.Web.PageInspector.Tracing\v4.0_2.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Web.PageInspector.Tracing.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.RegularExpressions\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.RegularExpressions.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: DefaultDomain): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.RegularExpressions\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.RegularExpressions.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.EnterpriseServices\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.EnterpriseServices.Wrapper.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Data.Services.Design\v4.0_4.0.0.0__b77a5c561934e089\System.Data.Services.Design.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\App_global.asax.qiwhtxw_.dll'. 
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.ServiceModel.Internals\v4.0_4.0.0.0__31bf3856ad364e35\System.ServiceModel.Internals.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Workflow.ComponentModel\v4.0_4.0.0.0__31bf3856ad364e35\System.Workflow.ComponentModel.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Workflow.Activities\v4.0_4.0.0.0__31bf3856ad364e35\System.Workflow.Activities.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Workflow.Runtime\v4.0_4.0.0.0__31bf3856ad364e35\System.Workflow.Runtime.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Windows.Forms\v4.0_4.0.0.0__b77a5c561934e089\System.Windows.Forms.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Data.Linq\v4.0_4.0.0.0__b77a5c561934e089\System.Data.Linq.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Data.SqlXml\v4.0_4.0.0.0__b77a5c561934e089\System.Data.SqlXml.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.Transactions\v4.0_4.0.0.0__b77a5c561934e089\System.Transactions.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Xaml.Hosting\v4.0_4.0.0.0__31bf3856ad364e35\System.Xaml.Hosting.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Net.Http\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Net.Http.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\Microsoft.VisualBasic.Activities.Compiler\v4.0_10.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualBasic.Activities.Compiler.dll'. Cannot find or open the PDB file.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Runtime.DurableInstancing\v4.0_4.0.0.0__31bf3856ad364e35\System.Runtime.DurableInstancing.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Security\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Security.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\SMDiagnostics\v4.0_4.0.0.0__b77a5c561934e089\SMDiagnostics.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.DataVisualization\v4.0_4.0.0.0__31bf3856ad364e35\System.Web.DataVisualization.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.Build.Framework\v4.0_4.0.0.0__b03f5f7f11d50a3a\Microsoft.Build.Framework.dll'. Symbols loaded.
A first chance exception of type 'System.Web.HttpException' occurred in System.Web.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'Anonymously Hosted DynamicMethods Assembly'. 
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Dynamic\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Dynamic.dll'. Symbols loaded.
A first chance exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in Microsoft.CSharp.dll
A first chance exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in Microsoft.CSharp.dll
A first chance exception of type 'System.NullReferenceException' occurred in BytsNBytes.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Numerics\v4.0_4.0.0.0__b77a5c561934e089\System.Numerics.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_32\System.Data.OracleClient\v4.0_4.0.0.0__b77a5c561934e089\System.Data.OracleClient.dll'. Symbols loaded.
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.SqlServer.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.SqlServer.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'EntityFrameworkDynamicProxies-EntityFramework'. 
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.dll
A first chance exception of type 'System.Data.Entity.Core.EntityCommandExecutionException' occurred in EntityFramework.SqlServer.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'EntityFrameworkDynamicProxies-BytsNBytes'. 
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\System.Web.Mobile\v4.0_4.0.0.0__b03f5f7f11d50a3a\System.Web.Mobile.dll'. Symbols loaded.
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\App_Web_n2bonnra.dll'. 
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\App_Web_erouy4nj.dll'. 
A first chance exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in Microsoft.CSharp.dll
A first chance exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in Microsoft.CSharp.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Users\User0\AppData\Local\Temp\Temporary ASP.NET Files\root\6ae02a6d\6ab4d59c\App_Web_2ktmhc3s.dll'. 
A first chance exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in Microsoft.CSharp.dll
A first chance exception of type 'Microsoft.CSharp.RuntimeBinder.RuntimeBinderException' occurred in Microsoft.CSharp.dll
'iisexpress.exe' (CLR v4.0.30319: /LM/W3SVC/9/ROOT-1-130729680602128906): Loaded 'C:\Windows\Microsoft.Net\assembly\GAC_MSIL\Microsoft.VisualStudio.Web.PageInspector.HtmlParser\v4.0_2.0.0.0__b03f5f7f11d50a3a\Microsoft.VisualStudio.Web.PageInspector.HtmlParser.dll'. Cannot find or open the PDB file.

房東的公司有問題嗎？ 請注意以下異常：無法找到或打開pdb文件。這些是系統dll！

請告訴我在應用程序實際運行時如何引發此類錯誤？

因此，較早的版本以前（甚至在主機的機器上）也能很好地工作，但是現在發布較舊的版本后，它不起作用。

Answer 1

嘗試運行“ aspnet_regiis.exe”（在管理員模式下打開命令提示符，然后轉到C：\\ Windows \\ Microsoft.NET \\ Framework \\ v4.0.30319（如果是32位PC）C：\\ Windows \\ Microsoft.NET \\ Framework64 \\ v4.0.30319（如果是64位PC），然后鍵入aspnet_regiis.exe -i並按Enter鍵

Answer 2

主持人公司的技術支持剛剛答復。 他們通過重新啟動應用程序池來修復站點。

原因是mvc項目（在運行時）占用了過多的內存（這是正確的，因為我有部分代碼可以處理數千個實例）。

如果發生這種情況，並且使用量超出了站點的內存，則IIS將自動回收該項目。 因此會出現問題，並且必須重新啟動應用程序池才能使站點再次運行。

請將此添加到您可能會出現“ http 503”的原因列表中。 就我而言，它可能源於托管計划和站點的內存。

https://besthostingforasp.net/asp-net-service-unavailable-503-error-using-shared-windows-server/