System.Configuration.ConfigurationErrorsException: 创建 userSettings/Microsoft.SqlServer.Configuration.LandingPage.Properties.Settings 的配置节处理程序时出错: 未能加载文件或程序集“System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”或它的某一个依赖项。系统没找到指定的文件。 (C:UsershpAppDataLocalMicrosoft_CorporationLandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx10.0.0.0useronfig line 5) ---> System.IO.FileNotFoundException: 未能加载文件或程序集“System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”或它的某一个依赖项。系统没找到指定的文件。
文件名:“System, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089”
在 System.Configuration.TypeUtil.GetTypeWithReflectionPermission(IInternalConfigHost host, String typeString, Boolean throwOnError)
在 System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.Init(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
在 System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.InitWithRestrictedPermissions(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
在 System.Configuration.RuntimeConfigurationRecord.RuntimeConfigurationFactory.tor(RuntimeConfigurationRecord configRecord, FactoryRecord factoryRecord)
在 System.Configuration.RuntimeConfigurationRecord.CreateSectionFactory(FactoryRecord factoryRecord)
在 System.Configuration.BaseConfigurationRecord.FindAndEnsureFactoryRecord(String configKey, Boolean& isRootDeclaredHere)
解决：
删除这个文件
C:UsersusernameLocal SettingsApplication DataMicrosoft_CorporationLandingPage.exe_StrongName_ryspccglaxmt4nhllj5z3thycltsvyyx10.0.0.0user.config