System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.TypeLoadException: A type load exception has occurred.
  at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
  at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoCMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  at System.Reflection.MonoCMethod.Invoke (BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  at System.Reflection.ConstructorInfo.Invoke (System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Activator.CreateInstance (System.Type type, Boolean nonPublic) [0x00000] in <filename unknown>:0
  at System.Activator.CreateInstance (System.Type type) [0x00000] in <filename unknown>:0
  at Mono.Addins.TypeExtensionNode.CreateInstance () [0x00000] in <filename unknown>:0
  at Mono.Addins.InstanceExtensionNode.GetInstance () [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.Extensions.LanguageBindingCodon.get_LanguageBinding () [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.LanguageBindingService.<CheckBindings>m__81 (MonoDevelop.Projects.Extensions.LanguageBindingCodon codon) [0x00000] in <filename unknown>:0
  at System.Linq.Enumerable+<CreateSelectIterator>c__Iterator27`2[MonoDevelop.Projects.Extensions.LanguageBindingCodon,MonoDevelop.Projects.ILanguageBinding].MoveNext () [0x00000] in <filename unknown>:0
  at System.Collections.Generic.List`1[MonoDevelop.Projects.ILanguageBinding].AddEnumerable (IEnumerable`1 enumerable) [0x00000] in <filename unknown>:0
  at System.Collections.Generic.List`1[MonoDevelop.Projects.ILanguageBinding]..ctor (IEnumerable`1 collection) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.LanguageBindingService.CheckBindings () [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.LanguageBindingService.GetBindingPerLanguageName (System.String language) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.DotNetProject.FindLanguage (System.String name) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.DotNetProject..ctor (System.String languageName) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.DotNetProject..ctor (System.String languageName, MonoDevelop.Projects.ProjectCreateInformation projectCreateInfo, System.Xml.XmlElement projectOptions) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.DotNetAssemblyProject..ctor (System.String languageName, MonoDevelop.Projects.ProjectCreateInformation projectCreateInfo, System.Xml.XmlElement projectOptions) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.DotNetProjectBinding.CreateProject (System.String languageName, MonoDevelop.Projects.ProjectCreateInformation info, System.Xml.XmlElement projectOptions) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.DotNetProjectBinding.CreateProject (MonoDevelop.Projects.ProjectCreateInformation info, System.Xml.XmlElement projectOptions) [0x00000] in <filename unknown>:0
  at MonoDevelop.Projects.ProjectService.CreateProject (System.String type, MonoDevelop.Projects.ProjectCreateInformation info, System.Xml.XmlElement projectOptions) [0x00000] in <filename unknown>:0
  at MonoDevelop.Ide.Templates.ProjectDescriptor.CreateItem (MonoDevelop.Projects.ProjectCreateInformation projectCreateInformation, System.String defaultLanguage) [0x00000] in <filename unknown>:0
  at MonoDevelop.Ide.Templates.ProjectTemplate.HasItemFeatures (MonoDevelop.Projects.SolutionFolder parentFolder, MonoDevelop.Projects.ProjectCreateInformation cinfo) [0x00000] in <filename unknown>:0
  at MonoDevelop.Ide.Projects.NewProjectDialog.SelectedIndexChange (System.Object sender, System.EventArgs e) [0x00000] in <filename unknown>:0
  at MonoDevelop.Ide.Projects.NewProjectDialog+TemplateView.<TemplateView>m__38 (System.Object , System.EventArgs ) [0x00000] in <filename unknown>:0
  at (wrapper managed-to-native) System.Reflection.MonoMethod:InternalInvoke (System.Reflection.MonoMethod,object,object[],System.Exception&)
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  --- End of inner exception stack trace ---
  at System.Reflection.MonoMethod.Invoke (System.Object obj, BindingFlags invokeAttr, System.Reflection.Binder binder, System.Object[] parameters, System.Globalization.CultureInfo culture) [0x00000] in <filename unknown>:0
  at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in <filename unknown>:0
  at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in <filename unknown>:0
  at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
  at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in <filename unknown>:0
  at GLib.SignalClosure.MarshalCallback (IntPtr raw_closure, IntPtr return_val, UInt32 n_param_vals, IntPtr param_values, IntPtr invocation_hint, IntPtr marshal_data) [0x00000] in <filename unknown>:0