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Asked: 2026-05-11T02:50:52+00:00

In my winform app, I am trying to add a userSetting, although the error

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In my winform app, I am trying to add a userSetting, although the error is occuring with appSettings too. When the setting is added I get an exeption thrown that says: ‘Configuration system failed to initialize’ with a Inner Exception ‘Unrecognized configuration section userSetting’

Exception Details:

System.Configuration.ConfigurationErrorsException was unhandled   Message='Configuration system failed to initialize'   Source='System.Configuration'   BareMessage='Configuration system failed to initialize'   Line=0   StackTrace:        at System.Configuration.ConfigurationManager.PrepareConfigSystem()        at System.Configuration.ConfigurationManager.RefreshSection(String sectionName)        at System.Configuration.ClientSettingsStore.ReadSettings(String sectionName, Boolean isUserScoped)        at System.Configuration.LocalFileSettingsProvider.GetPropertyValues(SettingsContext context, SettingsPropertyCollection properties)        at System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider)        at System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName)        at System.Configuration.SettingsBase.get_Item(String propertyName)        at System.Configuration.ApplicationSettingsBase.GetPropertyValue(String propertyName)        at System.Configuration.ApplicationSettingsBase.get_Item(String propertyName)        at Settings.get_ApplicationData() in \Properties\Settings.Designer.cs:line 41        at Common.Initialize.IsSettingsInitialized()         at SurveyClient.Program.Main()         at System.AppDomain._nExecuteAssembly(Assembly assembly, String[] args)        at System.AppDomain.ExecuteAssembly(String assemblyFile, Evidence assemblySecurity, String[] args)        at Microsoft.VisualStudio.HostingProcess.HostProc.RunUsersAssembly()        at System.Threading.ThreadHelper.ThreadStart_Context(Object state)        at System.Threading.ExecutionContext.Run(ExecutionContext executionContext, ContextCallback callback, Object state)        at System.Threading.ThreadHelper.ThreadStart()   InnerException: System.Configuration.ConfigurationErrorsException        Message='Unrecognized configuration section userSettings.        Source='System.Configuration'        BareMessage='Unrecognized configuration section userSettings.'        Line=3        StackTrace:             at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)             at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)             at System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()             at System.Configuration.ClientConfigurationSystem.OnConfigRemoved(Object sender, InternalConfigEventArgs e)        InnerException:
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1 Answer

  1. Try checking that the app.config (myapp.exe.config once deployed) file exists and has at the top (possibly with other bits)

    <?xml version='1.0' encoding='utf-8' ?> <configuration> <configSections> <sectionGroup name='userSettings'     type='System.Configuration.UserSettingsGroup, System, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089' > </sectionGroup>
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