Problem with instantiation XmlSerializer

[peochei]

I've a problem while creating new instance of XmlSerializer. I thought it could occur because of improper solution platform. But I checked all possibilities.

Machine config:

• Windows XP SP3
• .NET 3.5 SP1

Any suggestions how to track the problem?

Here's what I got:

System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: Unrecognized configuration section system.serviceModel. (E:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Config\machine.config line 134)
   at System.Configuration.ConfigurationSchemaErrors.ThrowIfErrors(Boolean ignoreLocal)
   at System.Configuration.BaseConfigurationRecord.ThrowIfParseErrors(ConfigurationSchemaErrors schemaErrors)
   at System.Configuration.BaseConfigurationRecord.ThrowIfInitErrors()
   at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
   --- End of inner exception stack trace ---
   at System.Configuration.ClientConfigurationSystem.EnsureInit(String configKey)
   at System.Configuration.ClientConfigurationSystem.PrepareClientConfigSystem(String sectionName)
   at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection(String sectionName)
   at System.Configuration.ConfigurationManager.GetSection(String sectionName)
   at System.Configuration.PrivilegedConfigurationManager.GetSection(String sectionName)
   at System.Diagnostics.DiagnosticsConfiguration.GetConfigSection()
   at System.Diagnostics.DiagnosticsConfiguration.Initialize()
   at System.Diagnostics.DiagnosticsConfiguration.get_SwitchSettings()
   at System.Diagnostics.Switch.InitializeConfigSettings()
   at System.Diagnostics.Switch.InitializeWithStatus()
   at System.Diagnostics.Switch.get_SwitchSetting()
   at System.Diagnostics.BooleanSwitch.get_Enabled()
   at System.Xml.Serialization.TempAssembly.LoadGeneratedAssembly(Type type, String defaultNamespace, XmlSerializerImplementation& contract)
   at System.Xml.Serialization.XmlSerializer..ctor(Type type, String defaultNamespace)
   at System.Xml.Serialization.XmlSerializer..ctor(Type type)
(...)

[peochei]

Strange enough.
I solved it by copying 'WINDOWS\Micros oft.NET\Framewo rk\v2.0.50727\C onfig\machine.c onfig' from different computer.

[Plater]

It sounds like the install for .NET2.0 got corrupted. Copying a file over from another PC isn't exactly "safe", but 9/10 is probably fine