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WebAPI POST without data causes application to crash

I have a simple OWIN self-hosted application with a controller extending ApiController. The problem is, when I send a POST request with no data to the controller (the method doesn't have parameters), it returns:
Length Required
And then the application crashes with an unhandled ObjectDisposedException (full stack trace below). If the POST request contains data then all is well.
I removed all controller logic from the equation by replicating with this simple method:
[HttpPost]
public void MyMethod()
{
return;
}
Therefore I'm guessing it's something to do with routing? But my routes are only set up as the default:
config.Routes.MapHttpRoute("My Service", "{controller}/{action}/{id}", new { id = RouteParameter.Optional });
Why would my application be behaving in this manner?
To send the requests I use curl:
curl --request POST http://localhost/mycontroller/mymethod
Stack trace:
Unhandled Exception: System.ObjectDisposedException: Cannot access a
disposed object. Object name: 'System.Net.HttpListenerResponse'. at
System.Net.HttpListenerResponse.set_StatusCode (System.Int32 value)
[0x00016] in <59be416de143456b88b9988284f43350>:0 at
Microsoft.Owin.Host.HttpListener.RequestProcessing.OwinHttpListenerResponse.End
() [0x0001c] in <5086711574984403b242554b11c41440>:0 at
Microsoft.Owin.Host.HttpListener.RequestProcessing.OwinHttpListenerContext.End
() [0x00010] in <5086711574984403b242554b11c41440>:0 at
Microsoft.Owin.Host.HttpListener.RequestProcessing.OwinHttpListenerContext.End
(System.Exception ex) [0x0001e] in
<5086711574984403b242554b11c41440>:0 at
Microsoft.Owin.Host.HttpListener.OwinHttpListener+d__5.MoveNext
() [0x001f9] in <5086711574984403b242554b11c41440>:0
--- End of stack trace from previous location where exception was thrown --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw ()
[0x0000c] in :0 at
System.Runtime.CompilerServices.TaskAwaiter.ThrowForNonSuccess
(System.Threading.Tasks.Task task) [0x0004e] in
:0 at
System.Runtime.CompilerServices.TaskAwaiter.HandleNonSuccessAndDebuggerNotification
(System.Threading.Tasks.Task task) [0x0002e] in
:0 at
System.Runtime.CompilerServices.TaskAwaiter.ValidateEnd
(System.Threading.Tasks.Task task) [0x0000b] in
:0 at
System.Runtime.CompilerServices.TaskAwaiter.GetResult () [0x00000] in
:0 at
Microsoft.Owin.Host.HttpListener.OwinHttpListener+d__0.MoveNext
() [0x00202] in <5086711574984403b242554b11c41440>:0
--- End of stack trace from previous location where exception was thrown --- at
System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw ()
[0x0000c] in :0 at
System.Runtime.CompilerServices.AsyncMethodBuilderCore.m__1
(System.Object state) [0x00000] in
:0 at
System.Threading.QueueUserWorkItemCallback.WaitCallback_Context
(System.Object state) [0x0000e] in
:0 at
System.Threading.ExecutionContext.RunInternal
(System.Threading.ExecutionContext executionContext,
System.Threading.ContextCallback callback, System.Object state,
System.Boolean preserveSyncCtx) [0x0008d] in
:0 at
System.Threading.ExecutionContext.Run
(System.Threading.ExecutionContext executionContext,
System.Threading.ContextCallback callback, System.Object state,
System.Boolean preserveSyncCtx) [0x00000] in
:0 at
System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem
() [0x0002a] in :0 at
System.Threading.ThreadPoolWorkQueue.Dispatch () [0x00096] in
:0 at
System.Threading._ThreadPoolWaitCallback.PerformWaitCallback ()
[0x00000] in :0

Maybe if you show all your controller class I can help you a little more.
Try to make your post like this.
Make one class every get/post
for example in folder Controllers/Api/MyFunction.cs
in WebApiConfig.cs
config.Routes.MapHttpRoute(
name: "DefaultApi",
routeTemplate: "API/{controller}/{id}",
defaults: new { id = RouteParameter.Optional }
);
in your "MyFunction.cs"
public class MyFunction : ApiController
{
public string Get()
{
return "hello";
}
public bool Post(string param1)
{
return 1;
}
}

PING ERROR C# - Parameter name: hostName

I need help.. I checking for if user of PC connected to Internet..
It works for me.. and for many people.. But for someone no
and it's writing this into output_log.txt
ERROR:
ArgumentNullException: Argument cannot be null.
Parameter name: hostName
at System.Net.Dns.GetHostByName (System.String hostName) [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.GetNonLoopbackIP () [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.SendPrivileged (System.Net.IPAddress address, Int32 timeout, System.Byte[] buffer, System.Net.NetworkInformation.PingOptions options) [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.Send (System.Net.IPAddress address, Int32 timeout, System.Byte[] buffer, System.Net.NetworkInformation.PingOptions options) [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.Send (System.String hostNameOrAddress, Int32 timeout, System.Byte[] buffer, System.Net.NetworkInformation.PingOptions options) [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.Send (System.String hostNameOrAddress, Int32 timeout, System.Byte[] buffer) [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.Send (System.String hostNameOrAddress, Int32 timeout) [0x00000] in <filename unknown>:0
at System.Net.NetworkInformation.Ping.Send (System.String hostNameOrAddress) [0x00000] in <filename unknown>:0
at (wrapper remoting-invoke-with-check) System.Net.NetworkInformation.Ping:Send (string)
at Internet.Connection.Check () [0x00000] in <filename unknown>:0
at MyGame.Load.Loader.StartLoading () [0x00000] in <filename unknown>:0
at Loader+<Start>c__IteratorA.MoveNext () [0x00000] in <filename unknown>:0
(Filename: Line: -1)
Code:
namespace Internet
{
using System;
using System.Net.NetworkInformation;
using UnityEngine;
public class Connection
{
public static void Check()
{
System.Net.NetworkInformation.Ping ping = new System.Net.NetworkInformation.Ping();
if (ping.Send("89.203.249.74").Status != IPStatus.Success)
{
Debug.Log("NO INTERNET CONNECTION");
Application.Quit();
}
}
}
}
So Please help

Content view content update app crashes in xamarin iOS

I create the xamarin form project and update the content view content multiple time.
Its correctly update for android. But it not work for iOS
I have update the Contentview content when click the button like that
contentView.content = mVview;
Please find the stack trace
wrapper managed-to-native
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/src/UIKit/UIApplication.cs:79
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName,`/lanes/3969/7beaef43/source/xamarin-macios/src/UIKi1
when i put try catch, i got this stack trace
at Xamarin.Forms.Platform.iOS.EditorRenderer.Dispose (System.Boolean disposing) [0x00003] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\EditorRenderer.cs:28
at Foundation.NSObject.Dispose () [0x00000] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/src/Foundation/NSObject2.cs:133
at Xamarin.Forms.Platform.iOS.ListViewRenderer.Dispose (System.Boolean disposing) [0x001c4] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Renderers\ListViewRenderer.cs:153
at Foundation.NSObject.Dispose () [0x00000] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/src/Foundation/NSObject2.cs:133
at Xamarin.Forms.Platform.iOS.Platform.DisposeModelAndChildrenRenderers (Xamarin.Forms.Element view) [0x00038] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Platform.cs:322
at Xamarin.Forms.Platform.iOS.Platform.HandleChildRemoved (System.Object sender, Xamarin.Forms.ElementEventArgs e) [0x00007] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Platform.iOS\Platform.cs:433
at Xamarin.Forms.Element.OnDescendantRemoved (Xamarin.Forms.Element child) [0x00008] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\Element.cs:600
at Xamarin.Forms.Element.OnDescendantRemoved (Xamarin.Forms.Element child) [0x00022] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\Element.cs:603
at Xamarin.Forms.Element.OnDescendantRemoved (Xamarin.Forms.Element child) [0x00022] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\Element.cs:603
at Xamarin.Forms.Element.OnChildRemoved (Xamarin.Forms.Element child) [0x00021] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\Element.cs:367
at Xamarin.Forms.VisualElement.OnChildRemoved (Xamarin.Forms.Element child) [0x00000] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\VisualElement.cs:578
at Xamarin.Forms.Layout.OnInternalRemoved (Xamarin.Forms.View view) [0x00012] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\Layout.cs:413
at Xamarin.Forms.Layout.InternalChildrenOnCollectionChanged (System.Object sender, System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x0002f] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\Layout.cs:377
at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedEventArgs e) [0x00012] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/_ios-build/Library/Frameworks/Xamarin.iOS.framework/Versions/git/src/mono/mcs/class/referencesource/System/compmod/system/collections/objectmodel/observablecollection.cs:288
at System.Collections.ObjectModel.ObservableCollection`1[T].OnCollectionChanged (System.Collections.Specialized.NotifyCollectionChangedAction action, System.Object item, System.Int32 index) [0x00000] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/_ios-build/Library/Frameworks/Xamarin.iOS.framework/Versions/git/src/mono/mcs/class/referencesource/System/compmod/system/collections/objectmodel/observablecollection.cs:351
at System.Collections.ObjectModel.ObservableCollection`1[T].RemoveItem (System.Int32 index) [0x0002b] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/_ios-build/Library/Frameworks/Xamarin.iOS.framework/Versions/git/src/mono/mcs/class/referencesource/System/compmod/system/collections/objectmodel/observablecollection.cs:205
at System.Collections.ObjectModel.Collection`1[T].Remove (T item) [0x0002d] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/_ios-build/Library/Frameworks/Xamarin.iOS.framework/Versions/git/src/mono/mcs/class/referencesource/mscorlib/system/collections/objectmodel/collection.cs:113
at Xamarin.Forms.TemplateUtilities.OnContentChanged (Xamarin.Forms.BindableObject bindable, System.Object oldValue, System.Object newValue) [0x0001a] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\TemplateUtilities.cs:63
at Xamarin.Forms.BindableObject.SetValueActual (Xamarin.Forms.BindableProperty property, Xamarin.Forms.BindableObject+BindablePropertyContext context, System.Object value, System.Boolean currentlyApplying, Xamarin.Forms.BindableObject+SetValueFlags attributes, System.Boolean silent) [0x00108] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindableObject.cs:584
at Xamarin.Forms.BindableObject.SetValueCore (Xamarin.Forms.BindableProperty property, System.Object value, Xamarin.Forms.BindableObject+SetValueFlags attributes, Xamarin.Forms.BindableObject+SetValuePrivateFlags privateAttributes) [0x0014b] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindableObject.cs:378
at Xamarin.Forms.BindableObject.SetValue (Xamarin.Forms.BindableProperty property, System.Object value, System.Boolean fromStyle, System.Boolean checkAccess) [0x0005f] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindableObject.cs:531
at Xamarin.Forms.BindableObject.SetValue (Xamarin.Forms.BindableProperty property, System.Object value) [0x00000] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\BindableObject.cs:83
at Xamarin.Forms.ContentView.set_Content (Xamarin.Forms.View value) [0x00000] in C:\BuildAgent2\work\ca3766cfc22354a1\Xamarin.Forms.Core\ContentView.cs:11
at EgnatiumFull.Pages.QuestionAnswerPage.UpdateTheQuestionLayout () [0x00144] in /Volumes/MS/prjects/Egnatium/EgnatiumFinal/EgnatiumFinal/EgnatiumFinal/Pages/QuestionAnswerPage.cs:539
at EgnatiumFull.Pages.QuestionAnswerPage+<OnAppearing>c__async1.MoveNext () [0x0007e] in /Volumes/MS/prjects/Egnatium/EgnatiumFinal/EgnatiumFinal/EgnatiumFinal/Pages/QuestionAnswerPage.cs:383
--- End of stack trace from previous location where exception was thrown ---
at (wrapper managed-to-native) UIKit.UIApplication:UIApplicationMain (int,string[],intptr,intptr)
at UIKit.UIApplication.Main (System.String[] args, System.IntPtr principal, System.IntPtr delegate) [0x00005] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/src/UIKit/UIApplication.cs:79
at UIKit.UIApplication.Main (System.String[] args, System.String principalClassName, System.String delegateClassName) [0x00038] in /Users/builder/data/lanes/3969/7beaef43/source/xamarin-macios/src/UIKit/UIApplication.cs:63
at EgnatiumFinal.iOS.Application.Main (System.String[] args) [0x00008] in /Users/saifamily/Documents/14_2_17/EgnatiumFinal/EgnatiumFinal/EgnatiumFinal.iOS/Main.cs:17 xa

Finally I found the solution in my own way, i think i don't know is this correct way but in my case it work perfectly
I rendererd the list view for ios and overide the methods dispose with try/catch statement
protected override void Dispose()
{
try{
base.Dispose();
}
Catch(Exception ex)
{
return;
}
}

Google API-change, results in a MONO error: Invalid IL code in System.Net.Http.HttpClientHandler:.ctor (): method body is empty

I had to change the auth system behind the Google Analytics API following the old auth system becoming defunct. As a result of a SO post, my auth file went from:
protected override void Load(ContainerBuilder builder)
{
builder.Register(c =>
{
var service = new AnalyticsService("mrfreeman.com");
service.setUserCredentials("robot#mrfreeman.com", "jellyfish");
return service;
});
builder.RegisterType<AnalyticsNewsletterTrackingSource>().As<INewsletterTrackingSource>();
builder.RegisterType<AnalyticsSearchTrackingSource>().As<ISearchTrackingSource>();
builder.RegisterType<AnalyticsEmailLinkTracker>().As<IEmailLinkTracker>();
}
To:
private const string ServiceAccountEmail = "blabla#developer.gserviceaccount.com";
private static readonly string KeyPath = System.IO.Path.Combine(AppDomain.CurrentDomain.SetupInformation.PrivateBinPath ?? AppDomain.CurrentDomain.BaseDirectory, "Key.p12");
private static readonly X509Certificate2 Certificate = new X509Certificate2(KeyPath, "notasecret", X509KeyStorageFlags.Exportable);
private readonly ServiceAccountCredential _credential = new ServiceAccountCredential(
new ServiceAccountCredential.Initializer(ServiceAccountEmail)
{
Scopes = new[] { "https://www.googleapis.com/auth/analytics" }
}.FromCertificate(Certificate));
protected override void Load(ContainerBuilder builder)
{
builder.Register(c =>
{
_credential.RequestAccessTokenAsync(System.Threading.CancellationToken.None).Wait();
var service = new AnalyticsService("mrfreeman.com");
var requestFactory = new GDataRequestFactory("shazbot2.0");
requestFactory.CustomHeaders.Add(string.Format("Authorization: Bearer {0}", _credential.Token.AccessToken));
service.RequestFactory = requestFactory;
return service;
});
builder.RegisterType<AnalyticsNewsletterTrackingSource>().As<INewsletterTrackingSource>();
builder.RegisterType<AnalyticsSearchTrackingSource>().As<ISearchTrackingSource>();
builder.RegisterType<AnalyticsEmailLinkTracker>().As<IEmailLinkTracker>();
}
Doing all the necessary boiler plate of copying the generated developer email address and P12 key into the project.
The problem is this: It works on Windows but throws problems with the services running on mono and are dependant on the Analytics module. Currently using 4.0.2 version of Mono.
What I've tried:
Using old and new versions of mono - 3.10 and 4.2.0 pre-release to run the service (which is itself built by Visual Studio) and check if exception is produced.
Import System.Net.Http and copy to local (currently not referenced in service) - still produces same exception
At this stage I'm cornered into learning the new Google Analytics API and re-writing everything from scratch as I tried to use the old API but update the Auth API with little luck, but feel this a blunt-instrument type solution.
The stack trace is the same on any version and is:
FATAL Unhandled exception occurred.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidProgramException: Invalid IL code in System.Net.Http.HttpClientHandler:.ctor (): method body is empty.
at Google.Apis.Http.HttpClientFactory.CreateHandler (Google.Apis.Http.CreateHttpClientArgs args) <0x40280100 + 0x0003b> in <filename unknown>:0
at Google.Apis.Http.HttpClientFactory.CreateHttpClient (Google.Apis.Http.CreateHttpClientArgs args) <0x4027ff90 + 0x0002d> in <filename unknown>:0
at Google.Apis.Auth.OAuth2.ServiceAccountCredential..ctor (Google.Apis.Auth.OAuth2.Initializer initializer) <0x4027f6d0 + 0x00438> in <filename unknown>:0
at jellyfish.Analytics.AnalyticsModule..ctor () <0x4027ed00 + 0x00103> in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) <0x7f8257b94780 + 0x0003f> in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) <0x7f8257b94780 + 0x00079> in <filename unknown>:0
at System.RuntimeType.CreateInstanceMono (Boolean nonPublic) <0x7f82579c1ec0 + 0x00116> in <filename unknown>:0
at System.RuntimeType.CreateInstanceSlow (Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, System.Threading.StackCrawlMark& stackMark) <0x7f82579c1e70 + 0x00049> in <filename unknown>:0
at System.RuntimeType.CreateInstanceDefaultCtor (Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, System.Threading.StackCrawlMark& stackMark) <0x7f82579c1c10 + 0x0005c> in <filename unknown>:0
at System.Activator.CreateInstance[T] () <0x7f82578dfb70 + 0x0008a> in <filename unknown>:0
at Autofac.ModuleRegistrationExtensions.RegisterModule[TModule] (IModuleRegistrar registrar) <0x40273470 + 0x0004f> in <filename unknown>:0
at Autofac.ModuleRegistrationExtensions.RegisterModule[TModule] (Autofac.ContainerBuilder builder) <0x40273330 + 0x0006b> in <filename unknown>:0
at jellyfish.Cron.Program.BuildContainer (ILog log) <0x402730e0 + 0x0005f> in <filename unknown>:0
at jellyfish.Cron.Program.ExecuteJob (System.Type jobType) <0x4021abe0 + 0x0007b> in <filename unknown>:0
Unknown errno: Protocol error
Unhandled Exception:
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidProgramException: Invalid IL code in System.Net.Http.HttpClientHandler:.ctor (): method body is empty.
at Google.Apis.Http.HttpClientFactory.CreateHandler (Google.Apis.Http.CreateHttpClientArgs args) <0x40280100 + 0x0003b> in <filename unknown>:0
at Google.Apis.Http.HttpClientFactory.CreateHttpClient (Google.Apis.Http.CreateHttpClientArgs args) <0x4027ff90 + 0x0002d> in <filename unknown>:0
at Google.Apis.Auth.OAuth2.ServiceAccountCredential..ctor (Google.Apis.Auth.OAuth2.Initializer initializer) <0x4027f6d0 + 0x00438> in <filename unknown>:0
at jellyfish.Analytics.AnalyticsModule..ctor () <0x4027ed00 + 0x00103> in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) <0x7f8257b94780 + 0x0003f> in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) <0x7f8257b94780 + 0x00079> in <filename unknown>:0
at System.RuntimeType.CreateInstanceMono (Boolean nonPublic) <0x7f82579c1ec0 + 0x00116> in <filename unknown>:0
at System.RuntimeType.CreateInstanceSlow (Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, System.Threading.StackCrawlMark& stackMark) <0x7f82579c1e70 + 0x00049> in <filename unknown>:0
at System.RuntimeType.CreateInstanceDefaultCtor (Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, System.Threading.StackCrawlMark& stackMark) <0x7f82579c1c10 + 0x0005c> in <filename unknown>:0
at System.Activator.CreateInstance[T] () <0x7f82578dfb70 + 0x0008a> in <filename unknown>:0
at Autofac.ModuleRegistrationExtensions.RegisterModule[TModule] (IModuleRegistrar registrar) <0x40273470 + 0x0004f> in <filename unknown>:0
at Autofac.ModuleRegistrationExtensions.RegisterModule[TModule] (Autofac.ContainerBuilder builder) <0x40273330 + 0x0006b> in <filename unknown>:0
at jellyfish.Cron.Program.BuildContainer (ILog log) <0x402730e0 + 0x0005f> in <filename unknown>:0
at jellyfish.Cron.Program.ExecuteJob (System.Type jobType) <0x4021abe0 + 0x0007b> in <filename unknown>:0
[ERROR] FATAL UNHANDLED EXCEPTION: System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.InvalidProgramException: Invalid IL code in System.Net.Http.HttpClientHandler:.ctor (): method body is empty.
at Google.Apis.Http.HttpClientFactory.CreateHandler (Google.Apis.Http.CreateHttpClientArgs args) <0x40280100 + 0x0003b> in <filename unknown>:0
at Google.Apis.Http.HttpClientFactory.CreateHttpClient (Google.Apis.Http.CreateHttpClientArgs args) <0x4027ff90 + 0x0002d> in <filename unknown>:0
at Google.Apis.Auth.OAuth2.ServiceAccountCredential..ctor (Google.Apis.Auth.OAuth2.Initializer initializer) <0x4027f6d0 + 0x00438> in <filename unknown>:0
at jellyfish.Analytics.AnalyticsModule..ctor () <0x4027ed00 + 0x00103> in <filename unknown>:0
at (wrapper managed-to-native) System.Reflection.MonoCMethod:InternalInvoke (System.Reflection.MonoCMethod,object,object[],System.Exception&)
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) <0x7f8257b94780 + 0x0003f> in <filename unknown>:0
--- End of inner exception stack trace ---
at System.Reflection.MonoCMethod.InternalInvoke (System.Object obj, System.Object[] parameters) <0x7f8257b94780 + 0x00079> in <filename unknown>:0
at System.RuntimeType.CreateInstanceMono (Boolean nonPublic) <0x7f82579c1ec0 + 0x00116> in <filename unknown>:0
at System.RuntimeType.CreateInstanceSlow (Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, System.Threading.StackCrawlMark& stackMark) <0x7f82579c1e70 + 0x00049> in <filename unknown>:0
at System.RuntimeType.CreateInstanceDefaultCtor (Boolean publicOnly, Boolean skipCheckThis, Boolean fillCache, System.Threading.StackCrawlMark& stackMark) <0x7f82579c1c10 + 0x0005c> in <filename unknown>:0
at System.Activator.CreateInstance[T] () <0x7f82578dfb70 + 0x0008a> in <filename unknown>:0
at Autofac.ModuleRegistrationExtensions.RegisterModule[TModule] (IModuleRegistrar registrar) <0x40273470 + 0x0004f> in <filename unknown>:0
at Autofac.ModuleRegistrationExtensions.RegisterModule[TModule] (Autofac.ContainerBuilder builder) <0x40273330 + 0x0006b> in <filename unknown>:0
at jellyfish.Cron.Program.BuildContainer (ILog log) <0x402730e0 + 0x0005f> in <filename unknown>:0
at jellyfish.Cron.Program.ExecuteJob (System.Type jobType) <0x4021abe0 + 0x0007b> in <filename unknown>:0

I was having similar issue, So thought try removing and adding the following DLLS to fix it.
Removed System.net.http, OkHttp, ModernClient. Found the issue was with ModernClientHttp and OkHttp dlls added under references.
I have removed OkHttp and ModernClientHttp and added the ModernClientHttp via Nuget and that works for me.
Give a try if that helps.

error when add event in MonoDevelop

when i double click on Clicked signals to add new Clicked event, it not automatic add code. it show error
i use newest version of Monodevelop and Gtk# Toolkit and Window7 platform
how to fix it ??

Try to add it manually.
Into constructor of your window class write:
yourElement.Clicked += new EventHandler(Method);
void Method(~)
{
//logic
}
Where EventHandler is a delegate type of Clicked event, and Method is a method, which have same with EventHandler signature.

This is a bug still present in MonoDevelop 3.0.1. Look below for the full stacktrace. Adding an even manually is like Arman Stepanyan described it.
System.Reflection.TargetInvocationException: Exception has been thrown by the target of an invocation. ---> System.NotImplementedException: The requested feature is not implemented.
at MonoDevelop.Ide.TypeSystem.CodeGenerationService.GetSuitableInsertionPoint (IEnumerable`1 points, IUnresolvedTypeDefinition cls, IUnresolvedMember member) [0x0003e] in /build/buildd/monodevelop-3.0.1/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.TypeSystem/CodeGenerationService.cs:335
at MonoDevelop.Ide.TypeSystem.CodeGenerationService.AddNewMember (ITypeDefinition type, IUnresolvedTypeDefinition part, IUnresolvedMember newMember, Boolean implementExplicit) [0x00043] in /build/buildd/monodevelop-3.0.1/main/src/core/MonoDevelop.Ide/MonoDevelop.Ide.TypeSystem/CodeGenerationService.cs:91
at MonoDevelop.GtkCore.GuiBuilder.CodeBinder.BindSignal (Stetic.Signal signal) [0x000de] in /build/buildd/monodevelop-3.0.1/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/CodeBinder.cs:182
at MonoDevelop.GtkCore.GuiBuilder.GuiBuilderView.OnSignalAdded (System.Object sender, Stetic.ComponentSignalEventArgs args) [0x00000] in /build/buildd/monodevelop-3.0.1/main/src/addins/MonoDevelop.GtkCore/MonoDevelop.GtkCore.GuiBuilder/GuiBuilderView.cs:316
at Stetic.WidgetDesigner.OnSignalAdded (System.Object sender, Stetic.ComponentSignalEventArgs args) [0x00000] in :0
at Stetic.Project+c_AnonStoreyD.<>m_17 (System.Object , System.EventArgs ) [0x00000] in :0
at Stetic.GuiDispatch.InvokeSync (System.EventHandler h) [0x00000] in :0
at Stetic.Project.NotifySignalAdded (System.Object obj, System.String name, Stetic.Signal signal) [0x00000] in :0
at (wrapper remoting-invoke-with-check) Stetic.Project:NotifySignalAdded (object,string,Stetic.Signal)
at Stetic.ProjectBackend.Stetic.IProject.NotifySignalAdded (Stetic.SignalEventArgs args) [0x00000] in :0
at Stetic.ObjectWrapper.OnSignalAdded (Stetic.SignalEventArgs args) [0x00000] in :0
at Stetic.SignalCollection.OnInsertComplete (Int32 index, System.Object value) [0x00000] in :0
at System.Collections.CollectionBase.System.Collections.IList.Add (System.Object value) [0x00000] in :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 :0
at System.Reflection.MethodBase.Invoke (System.Object obj, System.Object[] parameters) [0x00000] in :0
at System.Delegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in :0
at System.MulticastDelegate.DynamicInvokeImpl (System.Object[] args) [0x00000] in :0
at System.Delegate.DynamicInvoke (System.Object[] args) [0x00000] in :0
at GLib.Signal.ClosureInvokedCB (System.Object o, GLib.ClosureInvokedArgs args) [0x00000] in :0
at GLib.SignalClosure.Invoke (GLib.ClosureInvokedArgs args) [0x00000] in :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 :0