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Value Cannot Be Null. Parameter Name Value Wcf

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up vote 1 down vote favorite My WCF service[using basicHttpBinding] is hosted on IIS 6.Am able to access it using ?wsdl in the service url in IE browser . It looks like the client is attempting to use NTLM. For demonstration below code will result in such an exception. If I step through my code and determine what is actually broken (the exception is not very informative), I find that the error has nothing whatsoever to do with the exception his comment is here

The really, really strange thing is this: When I get this error, the "real" exception always seems to be thrown from my code contained in a .vb class file. Sharepoint 2013: Rest API - does header need to include X-RequestDigest? not in my development environment. I had a rewriting rule updating in lowercase our url.

Value Cannot Be Null. Parameter Name Uristring

Looks like you should return empty list in that case –Sergey Berezovskiy Feb 16 '15 at 9:27 Ok.. Calculating ...5(5+4(4+3(3+2(2+1(1))))) What is the meaning of ''cry oneself"? Post your question and get tips & solutions from a community of 418,795 IT Pros & Developers. How do unlimited vacation days work?

  1. Now I can go for beer... 8 June 2010 at 07:08 Lee Sy En said...
  2. Thank you!
  3. Parameter name: s Description: An unhandled exception occurred during the execution of the current web request.
  4. You saved my day!!! :) 16 April 2014 at 12:59 Joel said...
  5. Unfortunately in my case the website consists of nearly 6 WCF services with user controls and these services are utilised not by the web app but by the silverlight application.I feel
  6. Feb 16 '15 at 9:12 1 I only get this error in my release apps installed in client.

Thank you!!! 21 March 2011 at 00:30 Issam said... Sign in to comment Contact GitHub API Training Shop Blog About © 2016 GitHub, Inc. Here is the fiddle if you want to play around. Value Cannot Be Null Parameter Name Uristring Web Service DamianEdwards added the needs repro label Jan 20, 2015 bladefist commented Jan 21, 2015 @DamianEdwards Thanks for the response.

Privacy Statement| Terms of Use| Contact Us| Advertise With Us| CMS by Umbraco| Hosted on Microsoft Azure Feedback on ASP.NET| File Bugs| Support Lifecycle Value Cannot Be Null. Parameter Name: Source so far have gone through this process on about 10 files. If the request headers you showed are the headers for the request that failed then content length is 147 but was there any data really sent? Samuel - thanks so much for sharing this!

Member 424 Points 1104 Posts Re: Value cannot be null, parameter name source Mar 14, 2011 02:59 PM|[email protected]|LINK when I start debugging this whole block of code returns that error. Value Cannot Be Null. Parameter Name Collection What do I do? More head-scratching, and Fiddlering: the old parameter name was still being passed through. It took 2 weeks for me to figure out that!

Value Cannot Be Null. Parameter Name: Source

Hello World Run-time exception (line 11): Value cannot be null. Writing a singleton as a countable intersection Single word for the act of being susceptible? Value Cannot Be Null. Parameter Name Uristring Information regarding the origin and location of the exception can be identified using the exception stack trace below. Value Cannot Be Null Parameter Name Source Wcf Thanks a lot :D –mrhands Feb 17 '15 at 1:05 | show 2 more comments up vote 3 down vote Value cannot be null.

That posts were helpful. this content I don't think you know how much time you probably saved, but I bet it's a lot. 13 January 2014 at 21:39 Amaline J said... Parameter name: source] at Program.Main(): line 11 Here in your case ListMetadataKor is null. Saved my night of sleep!!! 30 August 2013 at 13:55 theforwardway said... Value Cannot Be Null. Parameter Name Path

I had .NET 2.0 client (no way to update this to newer .NET framework) that used XmlSerializer. I lost 30mins before finding your article. It can sometimes be a security issue to show detailed exception messages to end users. weblink c# wcf visual-studio wcf-binding livecycle share|improve this question edited Apr 4 '13 at 8:10 Kjartan 9,886104165 asked Apr 4 '13 at 7:49 gizemdemirel 7229 You'll have to show your

I am building the application using Visual Basic .Net in Visual Studio.NET 2003. Value Cannot Be Null. Parameter Name Wcf This should give you a good idea on where to look to debug your code. –Amicable Apr 4 '13 at 8:12 add a comment| 1 Answer 1 active oldest votes up My best theory now is that my problem is related to this: http://blogs.msdn.com/b/asiatech/archive/2012/01/30/400-bad-request-when-posting-webservice-or-wcf-request-from-ie.aspx Seems SignalR requests does not like being challenged by NTLM.

But sometimes the "state" is altered in such a way the SignalR stops working and reloading the application is the only way to fix it again.

Please review the stack trace for more information about the error and where it originated in the code.Exception Details:System.ArgumentNullException: Value cannot be null.Parameter name: keySource Error: An unhandled exception was generated Parameter name: uri The strange thing is that I don't have any parameter named "uri". I've a presenation layer in my winforms client and I added the reference of this service using ServiceReferences option in VS.Net which then generated a proxy. Value Cannot Be Null Parameter Name Uristring Sharepoint Can you check how the request send by the client looks like?

Does your exception logging tool provide this information? Solving a discrete equation How to stop NPCs from picking up dropped items I am seen in darkness and in light, What am I? Information regarding the origin and location of the exception can be identified using the exception stack trace below. check over here How do you enchant items with Lapis Luzuli?

Eventhough we update/ configure the web service the old reference name will be sustained in the reference file. more stack exchange communities company blog Stack Exchange Inbox Reputation and Badges sign up log in tour help Tour Start here for a quick overview of the site Help Center Detailed bladefist commented Dec 30, 2014 @moozzyk Not really. So I used the second option.

I searched newsgroups and ms knowledgebase, but I did not find anything resembling my problem. ----------------------- The exception: Value cannot be null. Join them; it only takes a minute: Sign up WCF REST API - Error when consuming rest API "Value cannot be null. Parameter name: key.] System.ServiceModel.AsyncResult.End(IAsyncResult result) +11531006 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +194 System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, Boolean flowContext) +176 System.ServiceModel.Activation.HttpModule.ProcessRequest(Object sender, EventArgs e) +278 System.Web.SyncEventExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +68 System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75 Can any one please help What we see (using Fiddler) is that some of the SignalR requests to the server results in status 400, and content-length 0.

After much head-scratching, I thought of checking the history of our Server project in the Source code repository. Reload to refresh your session. The edit link is at the bottom left under the tags. –Damien_The_Unbeliever Apr 4 '13 at 7:58 1 And it's almost certainly the EndpointAddress constructor that's throwing the exception - WOW!!!

If I step through my code and determine what is actually broken (the exception is not very informative), I find that the error has nothing whatsoever to do with the exception Should I report it? Parameter name:s" "The parameter is incorrect" when passing arguments to COM object does a "parameters"-parameter overwrite the "parameters"-object? Parameter name: s on page load #3374 Open bladefist opened this Issue Dec 30, 2014 · 17 comments Labels needs repro Milestone No milestone Assignees No one assigned

Stack Trace:

[ArgumentNullException: Value cannot be null. All I can think of is that perhaps you're running multiple servers and one of them is badly configured? My Statup.cs is below, it's the default from the example. Are keywords in resolv.conf case sensitive? 

This is null (from IDataRecord dr in SqlDataReader1 select new Reps() { A = Convert.ToString(dr["A"]), B = Convert.ToString(dr["B"]), C = Convert.ToString(dr["C"]), D = Convert.ToInt16(dr["D"]), E = Convert.ToString(dr["E"]), F = Convert.ToString(dr["F"]) }) After more investigation, when dropping the element from the web.config this error disappear and another error occurs.