System.Configuration.ConfigurationErrorsException: Error Initializing the configuration system.

Hi,

Since I've started always including the Mono runtime in the app bundle, I've been having this exception:

System.TypeInitializationException: The type initializer for 'System.Net.ServicePointManager' threw an exception. ---> System.Configuration.ConfigurationErrorsException: Error Initializing the configuration system. ---> System.NullReferenceException: Object reference not set to an instance of an object
  at System.Configuration.Configuration.FindLocationConfiguration (System.String relativePath, System.Configuration.Configuration defaultConfiguration) [0x00040] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/Configuration.cs:111
  at System.Configuration.Configuration..ctor (System.Configuration.InternalConfigurationSystem system, System.String locationSubPath) [0x0004e] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/Configuration.cs:93
  at System.Configuration.InternalConfigurationFactory.Create (System.Type typeConfigHost, System.Object[] hostInitConfigurationParams) [0x0000e] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/InternalConfigurationFactory.cs:41
  at System.Configuration.ConfigurationManager.OpenExeConfigurationInternal (System.Configuration.ConfigurationUserLevel userLevel, System.Reflection.Assembly calling_assembly, System.String exePath) [0x00102] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/ConfigurationManager.cs:119
  at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00011] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/ClientConfigurationSystem.cs:49
  --- End of inner exception stack trace ---
  at System.Configuration.ClientConfigurationSystem.get_Configuration () [0x00025] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/ClientConfigurationSystem.cs:52
  at System.Configuration.ClientConfigurationSystem.System.Configuration.Internal.IInternalConfigSystem.GetSection (System.String configKey) [0x00000] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/ClientConfigurationSystem.cs:61
  at System.Configuration.ConfigurationManager.GetSection (System.String sectionName) [0x00000] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System.Configuration/System.Configuration/ConfigurationManager.cs:159
  at System.Net.ServicePointManager..cctor () [0x00040] in /private/tmp/source-mono-4.8.0/bockbuild-mono-4.8.0-branch/profiles/mono-mac-xamarin/build-root/mono-x86/mcs/class/System/System.Net/ServicePointManager.cs:150

This happens specifically when I set the ServerCertificateValidationCallback of the ServicePointManager slightly after the launch of the app. This does only occurs occasionally though. This would happen on anything that would end up calling System.Configuration.Configuration.FindLocationConfiguration (in the initialization of a System.Xml.Serialization.XmlSerializer for instance).

I'm kind of at a loss here and ended up catching the exception and restarting the app when it does, which is horrible, I know, but will have to suffice for now. The random nature of the exception certainly does not help me figure it out.

Any ideas?

Thanks,