I´m trying to create a client in C# to a web service which (I suppose) is written in Java. It´s my first time trying to write a client, so I´m following the instructions on MSDN, but I´m stuck on a problem with Add Reference. When I open the Add Service Reference dialog and add the URL, an error occurs:
There was an error downloading 'http://geoportal.cuzk.cz/WCTService/WCTService.svc'.
The request failed with HTTP status 404: Not Found.
Metadata contains a reference that cannot be resolved: 'http://geoportal.cuzk.cz/WCTService/WCTService.svc'.
There was no endpoint listening at http://geoportal.cuzk.cz/WCTService/WCTService.svc that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
The remote server returned an error: (404) Not Found.
If the service is defined in the current solution, try building the solution and adding the service reference again.
What should my next step be? I don´t know what I should do with this!
(It is a coordinates-transformation service from the Czech Republic.)
For more information:
Property services (GetCapabilities)
http://geoportal.cuzk.cz/WCTService/WCTService.svc/get?
Localization services:
http://geoportal.cuzk.cz/WCTService/WCTService.svc/get?request=GetCapabilities&service=WCTS
I was facing a similar situation in which I had created a WCF Service (Employee.svc) and later changed the named to EmployeeService.svc. WCF project compiled just fine but when I was trying to add service reference from by UI Client, I was getting following error:
Metadata contains a reference that cannot be resolved: 'http://localhost:2278/EmployeeService.svc?wsdl'.
The document format is not recognized (the content type is 'text/html; charset=UTF-8').
Metadata contains a reference that cannot be resolved: 'http://localhost:2278/EmployeeService.svc'.
There was no endpoint listening at 'http://localhost:2278/EmployeeService.svc' that could accept the message. This is often caused by an incorrect address or SOAP action. See InnerException, if present, for more details.
The remote server returned an error: (404) Not Found.
If the service is defined in the current solution, try building the solution and adding the service reference again.
I resolved it by replacing the correct service class name everywhere. In my case, it should have been EmployeeService and NOT employee. The left out place was in the markup code of svc file:
<%# ServiceHost Language="C#" Debug="true" Service="WCFServiceHost.**Employee**" CodeBehind="EmployeeService.svc.cs" %>
Changed it to
<%# ServiceHost Language="C#" Debug="true" Service="WCFServiceHost.**EmployeeService**" CodeBehind="EmployeeService.svc.cs" %>
And it started working again!!! Dont forget to build your WCF project after changing the service name.
I tried browsing to http://geoportal.cuzk.cz/WCTService/WCTService.svc?wsdl. It looks like this service is not exposing metadata.
I did a bit of googling on OpenGIS, and I think you need to have a look at this article:
OpenGIS with .NET
You won't be able to just add a service reference and go. It looks like you need to craft a concrete WSDL.
There may be a client-side library you can use / customize to assist with integration. Have a look at Stack Overflow question Using MySQL GeoSpatial data types in .NET.
I know this is an old thread and has already been resolved, but I just finished troubleshooting this exact issue, and none of the resolutions presented here worked for me. Wanted to share my resolution in case anyone else runs into this thread with a similar issue.
My ENTIRE issue stemmed from a bad Refactor->Rename operation. I recently purchased Resharper for my dev team and Resharper did not like the name of our service implementation name. We had named it "WCFAccess" and Resharper wanted the name "WcfAccess". I had just published an update, had the release safely isolated in its own release branch in git, and figured this was a good time to perform a rename on the develop branch and shut Resharper up about the naming. I used Refactor->Rename to change the name of the file to match the naming convention we had defined in the Resharper configuration. The rename operation completed, the solution compiled and ran, time goes on and the WCF rename was forgotten.
Fast forward a couple weeks, and its time to deploy out web services to the test environment for regression testing. The solution compiled successfully, published successfully, then gave me the EXACT error that the OP posted. What I ended up finding out is that the Rename operation from weeks ago ONLY UPDATED SOURCE CODE REFERENCES to the old name and did not rename MARKUP. When I navigated out to our web server where the service was published to and double clicked on the .svc file, it opened the markup in Visual Studio and I noticed that the character casing of the CodeBehind="ServiceNameHere.svc.vb" was inconstant with the new naming convention. Updating the markup and web.config files to reference the correct character casing resolved my issue.
I hope this helps someone. It was incredibly frustrating to troubleshoot
(Please don't hate me for using VB.Net, I inherited this application) :-)
Is the service definitely up and running before you try to add a service reference? If it exposes meta data, does it have a service behaviour or equivalent configured? Have you configured your firewall correctly?
While adding service reference to the client application, metadata is not accessible from service to client application. hence The remote server returned an error: (404) Not Found. Actually we can host the WCF service as follows:
Self hosting(console application)
IIS Hosting
WAS Hosting
window service hosting.
if you are using self hosting then you need to host the service in console application and run the service(run the console application) and then add the service reference to the client application, then metadata would be exchange. If service is not running then while adding service reference to the client application then 404 not found error would be getting. Same process would follow for all the hosting type. first run the service then add service reference.
I had the same problem happen to me earlier today. The webservice was running fine on local host but for some reason, I was having a 400 when trying to add the service reference in another project.
My error was caused by setting the [DataMember] annotation instead of the [EnumMember] annotation on an enum of the service. Changing it solved my issue.
The webservices doesn't run.
If you don't have access to the server where this service run, you're blocked.
Otherwise, you need to check if the server run, etc. As I don't know how the Java webservice is run, I can't help you further.
Related
I'm trying to add the ReportExecution2005 Web Service into my project to allow me to execute reports from within my program.
We do this in other programs that are written in VB.net however, these programs have a namespace added for ReportingService that's around 3000 lines of code as the company has always struggled with adding the ReportExecution web service. Before I begin converting this code from VB.net to C# I thought I'd try again in getting it working the proper way.
I'm currently going to the Add Web Reference page, and putting the following:
http://reportserver/Reports/ReportExecution2005.asmx
This is returning a 404 error saying the resource can't be found. I've checked the URL over and over and got colleagues too. So I'm not really sure what else the issue could be.
Is there something that needs adding onto our report server for me to be able to add the web reference?
If anyone has had this issue before how did you solve it?
Any tips appreciated.
I have hosted two WCF services using a console application, one on port 8080 and the other at port 8090. I am able to create object for the first service named AccountManagementService but not for the other service named UserRegistrationService.
Snapshot below shows that two services have been added.
The second service doesn't show up in intellisense at all.
The complete details of the service used can be found at the following link(this is also a question asked by me):
Hosting two WCF services using a single console app
I have tried multiple times deleting and creating new service but nothing seems to be working. Please suggest.
based on the image, it should be there. open the reference.cs file for the service that is not showing up in IntelliSense and check the namespace. Then Try creating the reference using the full name. to get to the reference.cs file, click on Show all files in solution explorer as shown below
for example, if in reference.cs, you see the namespace WWWCF.UserRegistration as foo.bar.WWWCF.UserRegistration, then create instance using
foo.bar.WWWCF.UserRegistration ref = new foo.bar.WWWCF.UserRegistration ();
Found the solution. Not sure I understand the reason, though. But the following link has answers to my issue and has solved it.
Empty Reference.cs file issue solved
I am currently running a WCF service on an AppFabric server and my application needs to load a the web.config file dynamically to retrieve custom configuration sections.
On my development machine I can just load the configuration like this:
WebConfigurationManager.OpenMappedWebConfiguration(webMappedFile, virtualPath);
But on the test machine (AppFabric server) I am getting an exception and it seems that I need to specify a third parameter which is actually the site the web application is running on:
WebConfigurationManager.OpenMappedWebConfiguration(webMappedFile, virtualPath, "MySite");
So I tried to hard code it and it worked. Anyway this is not acceptable, so I need to dynamically provide the site to the WebConfigurationManager because I do not on which site the service will be running in the future. Do anybody knows how to achieve that?
Thanks.
If you are running this code as part of handling a request you could use:
Request.ServerVariables("server_name")
see: http://msdn.microsoft.com/en-us/library/ms525396(VS.90).aspx
Edit based on your comment
The parameter that you need is the Site Name, not the machine name, your code be running on many machines. If the code is running somewhere where it no longer knows that it is on a web site, then it is difficult for it to get the name of the web site that it is running on.
You then have two options:
Send the name as a parameter from a layer that has httpconext
Not sure if this will work: but you could try adding a reference to system.web to your project. It may compile, but you could get a null reference exception when you run it. Probably worth a try.
How about Server.MachineName
System.NullReferenceException: Object reference not set to an instance of an object.
at Microsoft.Web.Services2.WebServicesExtension.AfterSerializeServer(SoapServerMessage message)
Above exception is thrown whenever i try to access any method of webservice on another machine.
Regards,
Muhammad Waqas
Muhammad, I don't know what's causing your problem because you didn't show us the area of code where the exception comes from in your code.
However, it's clear that you are using WSE2. Were you aware that WSE2 is very obsolete? You should not use WSE at all unless you have no choices at all.
You should use WCF for all web services work; certainly for all new web services work.
Muhammad, Could you please give us some more specifics? Are you saying that whenever you access any web service that is not located on your machine you get this error? Or are you saying that you have a web service on your machhine that you cannot access from another machine? Also, how are you hosting this web service? IIS, Apache, your own soon-to-be-released replacement for all web servers everywhere?? And, as John Saunders said before, where in the code is the exception coming from?
From what you've written, my first hunch is a permissions issue, but some more details would greatly help.
After serialize event takes place when the SOAP payload is successfully serialized from the client.
I am guessing there might be some issue with the web service method rather than your code.
I have some silverlight code that calls a WCF service which then uses the Entity Framework to access the database and return records.
Everything runs fine but ... when I replace the Entity Framework code with classic ADO.NET code I get an error:
The remote server returned an error: NotFound
When I call the ADO.NET code directly with a unit test it returns records fine so it's not a problem with the ADO.NEt code
I used fiddler and it seems to say that the service cannot be found with a "500" error.
i don't think it's anything to do with the service as the only thing I change is the technology to access the database.
Anyone know what i'm missing here?
'NotFound' is a generic error message that could mean just about anything. If you are absolutely positive that you haven't changed the service interface, then the likely candidate is an exception is being thrown from within your service. Are you sure that the collection type that contains the data you are trying to return hasn't changed, i.e. from List< OfSomthing> to List< OfSomethingElse>?
In any case, something i have found invaluable for tracking this sort of issue is the Service Trace Viewer tool from Microsoft. Read all about it right here, all it takes is some simple changes to your web.config to enable the logging.
John Papa has a great article from MSDN Magazine Data Performance and Fault Strategies in Silverlight 3 that explains this issue and offers a solution. Due to browser limitations, error code 500s aren't routed properly. His solution modifies the outgoing HttpResponse Message back to a 200 for all Silverlight 500 responses.
If you are still stuck, you may want to try making the call to the service from the machine hosting the service. IIS by default returns much more information about what might have gone wrong when the call is from the local machine. (I believe this can be changed, but don't know for sure.)
try to add
HttpWebRequest.RegisterPrefix("http://", WebRequestCreator.ClientHttp);
to the Application startup event of the Silverlight app.
It should give you detail of what the real error is rather than NotFound. In my case, i was missing the clientaccesspolicy.xml resuired for cross domain requests.
How to: Specify Browser or Client HTTP Handling