Talvolta l'installazione di "Windows Communication Foundation" (a.k.a.
Indigo) su Windows XP può fallire almeno in parte, anche se il setup dichiara
che è tutto ok. Da cosa ce ne accorgiamo? Indubbiamente dal fatto che
qualcosa va storto ... 
Infatti, mi si è presentato questo errore in fase di compilazione:
Unhandled Exception: System.TypeInitializationException: The type initializer for 'System.ServiceModel' threw an exception. ---> System.Configuration.ConfigurationErrorsException: Configuration system failed to initialize ---> System.Configuration.ConfigurationErrorsException: Unrecognized configuration
section system.serviceModel. ()
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.System.Configuration.Intern
al.IInternalConfigSystem.GetSection(String sectionName)
at System.Configuration.ConfigurationManager.GetSection(String sectionName)
at System.Configuration.ConfigurationManager.get_AppSettings()
at System.ServiceModel.DiagnosticTrace..cctor()
--- End of inner exception stack trace ---
at System.ServiceModel.DiagnosticTrace.ShouldTrace(TraceEventType type)
at System.ServiceModel.ServiceHost.TraceCreation(TraceEventType eventType)
at System.ServiceModel.ServiceHost..ctor(Uri[] baseAddresses)
at System.ServiceModel.ServiceHost`1..ctor(Uri[] baseAddresses)
at Service.Program.Main(String[] args) ....
Questo perchè l'installazione non è riuscita a registrare le sezioni di
indigo nel machine.config. E' sufficiente aggiungere al machine.config, nella
sezione configSections, il seguente codice:
<sectionGroup name="microsoft.indigoListener" type="Microsoft.Indigo.IndigoListener.Configuration.IndigoListenerSectionGroup, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="diagnostics" type="Microsoft.Indigo.IndigoListener.Configuration.DiagnosticSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="net.pipe" type="Microsoft.Indigo.IndigoListener.Configuration.NetPipeSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="net.tcp" type="Microsoft.Indigo.IndigoListener.Configuration.NetTcpSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</sectionGroup>
<sectionGroup name="system.runtime.serialization" type="System.Runtime.Serialization.Configuration.SerializationSectionGroup, System.Runtime.Serialization, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="xmlFormatter" type="System.Runtime.Serialization.Configuration.XmlFormatterSection, System.Runtime.Serialization, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</sectionGroup>
<sectionGroup name="system.serviceModel" type="System.ServiceModel.Configuration.ServiceModelSectionGroup, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="behaviors" type="System.ServiceModel.Configuration.BehaviorsSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="client" type="System.ServiceModel.Configuration.ClientSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="diagnostics" type="System.ServiceModel.Configuration.DiagnosticSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="extensions" type="System.ServiceModel.Configuration.ServiceModelExtensionsSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="serviceHostingEnvironment" type="System.ServiceModel.Configuration.ServiceHostingEnvironmentSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="services" type="System.ServiceModel.Configuration.ServicesSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<sectionGroup name="bindings" type="System.ServiceModel.Configuration.BindingsSectionGroup, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" >
<section name="basicProfileBinding" type="System.ServiceModel.Configuration.BasicProfileBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="customBinding" type="System.ServiceModel.Configuration.CustomBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="intermediaryBinding" type="System.ServiceModel.Configuration.IntermediaryBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="msmqIntegrationBinding" type="System.ServiceModel.Configuration.MsmqIntegrationBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="netProfileDualTcpBinding" type="System.ServiceModel.Configuration.NetProfileDualTcpBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="netProfileMsmqBinding" type="System.ServiceModel.Configuration.NetProfileMsmqBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="netProfileNamedPipeBinding" type="System.ServiceModel.Configuration.NetProfileNamedPipeBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="netProfileTcpBinding" type="System.ServiceModel.Configuration.NetProfileTcpBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="wsProfileBinding" type="System.ServiceModel.Configuration.WSProfileBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
<section name="wsProfileDualHttpBinding" type="System.ServiceModel.Configuration.WSProfileDualHttpBindingSection, System.ServiceModel, Version=2.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" />
</sectionGroup>
</sectionGroup>