Could not find default endpoint element

Question

I ve added a proxy to a webservice to a VS2008  NET 3 5 solution  When constructing the client  NET throws this error      Could not find default endpoint element that references contract  IMySOAPWebService  in the ServiceModel client configuration section  This might be because no configuaration file was found for your application or because no endpoint element matching this contract could be found in the client element    Searching for this error tells me to use the full namespace in the contract  Here s my app config with full namespace    lt client gt     lt endpoint address  http   192 168 100 87 7001 soap IMySOAPWebService              binding  basicHttpBinding  bindingConfiguration  IMySOAPWebServicebinding              contract  Fusion DataExchange Workflows IMySOAPWebService  name  IMySOAPWebServicePort    gt   lt  client gt    I m running XP local  I mention this because a number of Google hits mention win2k3  The app config is copied to app exe config  so that is also not the problem   Any clues

User · Answer

Allow me to add one more thing to look for. (Tom Haigh's answer already alludes to it, but I want to be explicit)

My web.config file had the following defined:

<protocolMapping>
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>

I was already using basicHttpsBinding for one reference, but then I added a new reference which required basicHttpBinding (no s). All I had to do was add that to my protocolMapping as follows:

<protocolMapping>
    <add binding="basicHttpBinding" scheme="http" />
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>

As L.R. correctly points out, this needs to be defined in the right places. For me, that meant one in my Unit Test project's app.config as well as one in the main service project's web.config.

User · Answer

When you are adding a service reference    beware of namespace you are typing in     You should append it to the name of your interface    lt client gt     lt endpoint address  http   192 168 100 87 7001 soap IMySOAPWebService              binding  basicHttpBinding               contract  MyNamespace IMySOAPWebService    gt   lt  client gt

User · Answer

This one drove me crazy   I m using Silverlight 3 Prism  CAB  with WCF  When I call a WCF service in a Prism module  I get the same error      Could not find default endpoint element that references contract    IMyService  in the service model client configuaration section  This   might be because no configuaration file was found for your application   or because no end point element matching this contract could be found   in the client element   It turns out that its looking in the Shell s  xap file for a ServiceReferences ClientConfig file  not in the module s ServiceReferences ClientConfig file  I added my endpoint and binding to the existing ServiceReferences ClientConfig file in my Silverlight Shell application  it calls it s own WCF services    Then I had to rebuild the Shell app to generate the new  xap file for my Web project s ClientBin folder   Now this line of code finally works   MyServiceClient myService   new MyServiceClient

User · Answer

I had a situation like this  where i had   WCF Service Hosted somewhere Main Project Consumer Project of type  class Library  which has Service reference to a WCF Service Main project calls methods from consumer project   Now the Consumer project had all the related configuration setting in  lt system serviceModel gt  Tag of my app config  its was still throwing the same error as the above   All i did is added the same tag  lt system serviceModel gt  to my main project s app config file  and finally we were good to go   The Real problem  as far as in my case was  it was reading the wrong configuration file  Instead of consumer s app config  it was referring main proj s config  it took me two hours to figure that out

User · Answer

The namespace in your config should reflect the rest of the namespace path after your client s default namespace  as configured in the project properties    Based on your posted answer  my guess is that your client is configured to be in the  Fusion DataExchange Workflows  namespace   If you moved the client code to another namespace you would need to update the config to match the remaining namespace path

User · Answer

Ok  My case was a little diffrent but finally i have found the fix for it  I have  a Console EXE -  DLL -  Invoking WS1 -  DLL -  Invoking WS2  I have had both the configurations of the service model of WS1  and WS2 in the Console EXE config as recommended  - didnt solve the issue   But it still didn t work  until i have added the WebReference  of WS2 to WS1 also and not only to the DLL that actually creating and invoking the proxy of WS2

User · Answer

Several responses here hit upon the correct solution when you re facing the mind-numbingly obscure error of referencing the service from a class file  copy service config info into your app config web config of your console or windows app   None of those answers seem to show you what to copy though   Let s try and correct that   Here s what I copied out of my class library s config file  into my console app s config file  in order to get around this crazy error for a service I write called  TranslationServiceOutbound      You basically want everything inside the system serviceModel section      lt system serviceModel gt   lt bindings gt     lt basicHttpBinding gt       lt binding name  BasicHttpBinding ITranslationServiceOutbound    gt     lt  basicHttpBinding gt   lt  bindings gt   lt client gt     lt endpoint address  http   MyHostName TranslationServiceOutbound TranslationServiceOutbound svc      binding  basicHttpBinding  bindingConfiguration  BasicHttpBinding ITranslationServiceOutbound      contract  TranslationService ITranslationServiceOutbound  name  BasicHttpBinding ITranslationServiceOutbound    gt   lt  client gt

User · Answer

I got same error and I have tried many things but  didn t work  than I noticed that my  contract  was not same at all projects  I changed the contract as would be same for all projects inside solution and than it worked  This is project A   lt client gt       lt endpoint address  https   xxxxxxxx  binding  basicHttpBinding  bindingConfiguration  basic  contract  ServiceReference IIntegrationService  name  basic    gt   lt  client gt    Project B     lt client gt       lt endpoint address  xxxxxxxxxxxxx  binding  basicHttpBinding  bindingConfiguration  basic  contract  ServiceReference1 IIntegrationService  name  basic    gt   lt  client gt    Finally I changed for both as     lt client gt       lt endpoint address  https   xxxxxxxxxxx  binding  basicHttpBinding  bindingConfiguration  basic  contract  MyServiceReferrence IIntegrationService  name  basic    gt   lt  client gt

User · Answer

I have a situation which in the Unit test  I copied the app config file to the unit test project  So the unit test project also contains endpoint information

User · Answer

The namespace in your config should reflect the rest of the namespace path after your client s default namespace  as configured in the project properties    Based on your posted answer  my guess is that your client is configured to be in the  Fusion DataExchange Workflows  namespace   If you moved the client code to another namespace you would need to update the config to match the remaining namespace path

User · Answer

Solution for me was to remove the endpoint name from the Endpoint Name attribute in client web config this allowed the proxy to use   ChannelFactory lt TService gt   channelFactory   new ChannelFactory lt TService gt         only took all day to work out  Also the contract name was wrong once this fix was in place although it had been wrong when the initial error appear  Double then triple check for contract name strings people    attrib  Ian

User · Answer

This one drove me crazy   I m using Silverlight 3 Prism  CAB  with WCF  When I call a WCF service in a Prism module  I get the same error      Could not find default endpoint element that references contract    IMyService  in the service model client configuaration section  This   might be because no configuaration file was found for your application   or because no end point element matching this contract could be found   in the client element   It turns out that its looking in the Shell s  xap file for a ServiceReferences ClientConfig file  not in the module s ServiceReferences ClientConfig file  I added my endpoint and binding to the existing ServiceReferences ClientConfig file in my Silverlight Shell application  it calls it s own WCF services    Then I had to rebuild the Shell app to generate the new  xap file for my Web project s ClientBin folder   Now this line of code finally works   MyServiceClient myService   new MyServiceClient

User · Answer

Having tested several options  I finally solved this by using      contract  IMySOAPWebService    i e  without the full namespace in the config  For some reason the full name didn t resolve properly

User · Answer

I had this error when I was referencing the Contract in the  configuration file element without the global scope operator   i e    lt endpoint contract  global  MyNamepsace IMyContract       gt    works  but   lt endpoint contract  MyNamepsace IMyContract       gt    gives the  Could not find default endpoint element that references contract  error   The assembly containing MyNamepsace IMyContract is in a different assembly to the main application  so this may explain the need to use the global scope resolution

User · Answer

Hi I ve encountered the same problem but the best solution is to let the  NET to configure your client side configuration  What I discover is this when I add a service reference with a query string of  http  namespace service svc wsdl wsdl0 it does NOT create a configuration endpoints at the client side   But when I remove the  wsdl-wsdl0 and only use the url http  namespace service svc  it create the endpoint configuration at the client configuration file  for short remoe the    WSDL WSDL0

User · Answer

This error can arise if you are calling the service in a class library and calling the class library from another project    In this case you will need to include the WS configuration settings into the main projects app config if its a winapp or web config if its a web app  This is the way to go even with PRISM and WPF Silverlight

User · Answer

I found  as well as copying to the client UI s App config as I was using a Class Library interface  I had to prefix the name of the binding with the name of the Service Reference  mine is ServiceReference in the below    e g     lt endpoint address  http   localhost 4000 ServiceName  binding  basicHttpBinding        bindingConfiguration  BasicHttpBinding ISchedulerService        contract  ServiceReference ISchedulerService         name  BasicHttpBinding ISchedulerService    gt    instead of the default generated    lt endpoint address  http   localhost 4000 ServiceName  binding  basicHttpBinding        bindingConfiguration  BasicHttpBinding ISchedulerService        contract  ISchedulerService         name  BasicHttpBinding ISchedulerService    gt

User · Answer

If you reference the web service in your class library then you have to copy app config to your windows application or console application  solution  change Configuration of outer project same the class library s wcf configuration   Worked for me

User · Answer

Hi I ve encountered the same problem but the best solution is to let the  NET to configure your client side configuration  What I discover is this when I add a service reference with a query string of  http  namespace service svc wsdl wsdl0 it does NOT create a configuration endpoints at the client side   But when I remove the  wsdl-wsdl0 and only use the url http  namespace service svc  it create the endpoint configuration at the client configuration file  for short remoe the    WSDL WSDL0

User · Answer

I faced this problem once  It was because i was still developing the interface that uses WCF service  I configured test application and continued development  Then in development  i changed some of the services  namespaces  So i double checked  system serviceModel -  client -  endpoint -  contract  in web config to match WCF class  Then problem is solved

User · Answer

Allow me to add one more thing to look for. (Tom Haigh's answer already alludes to it, but I want to be explicit)

My web.config file had the following defined:

<protocolMapping>
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>

I was already using basicHttpsBinding for one reference, but then I added a new reference which required basicHttpBinding (no s). All I had to do was add that to my protocolMapping as follows:

<protocolMapping>
    <add binding="basicHttpBinding" scheme="http" />
    <add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>

As L.R. correctly points out, this needs to be defined in the right places. For me, that meant one in my Unit Test project's app.config as well as one in the main service project's web.config.

User · Answer

The namespace in your config should reflect the rest of the namespace path after your client s default namespace  as configured in the project properties    Based on your posted answer  my guess is that your client is configured to be in the  Fusion DataExchange Workflows  namespace   If you moved the client code to another namespace you would need to update the config to match the remaining namespace path

User · Answer

Several responses here hit upon the correct solution when you re facing the mind-numbingly obscure error of referencing the service from a class file  copy service config info into your app config web config of your console or windows app   None of those answers seem to show you what to copy though   Let s try and correct that   Here s what I copied out of my class library s config file  into my console app s config file  in order to get around this crazy error for a service I write called  TranslationServiceOutbound      You basically want everything inside the system serviceModel section      lt system serviceModel gt   lt bindings gt     lt basicHttpBinding gt       lt binding name  BasicHttpBinding ITranslationServiceOutbound    gt     lt  basicHttpBinding gt   lt  bindings gt   lt client gt     lt endpoint address  http   MyHostName TranslationServiceOutbound TranslationServiceOutbound svc      binding  basicHttpBinding  bindingConfiguration  BasicHttpBinding ITranslationServiceOutbound      contract  TranslationService ITranslationServiceOutbound  name  BasicHttpBinding ITranslationServiceOutbound    gt   lt  client gt

User · Answer

I faced this problem once  It was because i was still developing the interface that uses WCF service  I configured test application and continued development  Then in development  i changed some of the services  namespaces  So i double checked  system serviceModel -  client -  endpoint -  contract  in web config to match WCF class  Then problem is solved

User · Answer

I solved this  I think as others may have suggested  by creating the binding and endpoint address instances myself - because I did not want to add new settings to the config files  this is a replacement for some existing library code which is used widely  and previously used an older Web Service Reference etc    and so I wanted to be able to drop this in without having add new config settings everywhere   var remoteAddress   new System ServiceModel EndpointAddress  webServiceUrl    using  var productService   new ProductClient new System ServiceModel BasicHttpBinding    remoteAddress           set timeout     productService Endpoint Binding SendTimeout   new TimeSpan 0 0 0  webServiceTimeout          call web service method     productResponse   productService GetProducts         Edit  If you are using https then you need to use BasicHttpsBinding rather than BasicHttpBinding

User · Answer

There seem to be several ways to create fix this issue  For me  the CRM product I am using was written in native code and is able to call my  NET dll  but I run into the configuration information needing to be at above the main application  For me  the CRM application isn t  NET  so I ended up having to put it in my machine config file  not where I want it   In addition  since my company uses Websense I had a hard time even adding the Service Reference due to a 407 Proxy Authentication Required issue  that to required a modification to the machine cong   Proxy solution                     To get the WCF Service Reference to work I had to copy the  information from the app config of my DLL to the main application config  but for me that was machine config   And I also had to copy the  endpoint information to that same file  Once I did that it starting working for me

User · Answer

I had the same issue and it was solved only when the host application and the dll that used that endpoint had the same service reference name

User · Answer

When you are adding a service reference    beware of namespace you are typing in     You should append it to the name of your interface    lt client gt     lt endpoint address  http   192 168 100 87 7001 soap IMySOAPWebService              binding  basicHttpBinding               contract  MyNamespace IMySOAPWebService    gt   lt  client gt

User · Answer

This error can arise if you are calling the service in a class library and calling the class library from another project

User · Answer

Solution for me was to remove the endpoint name from the Endpoint Name attribute in client web config this allowed the proxy to use   ChannelFactory lt TService gt   channelFactory   new ChannelFactory lt TService gt         only took all day to work out  Also the contract name was wrong once this fix was in place although it had been wrong when the initial error appear  Double then triple check for contract name strings people    attrib  Ian

User · Answer

I had the same Issue I was using desktop app and using Global Weather Web service    I deleted the service reference and added the web reference and problem solved Thanks

User · Answer

This error can arise if you are calling the service in a class library and calling the class library from another project                    In this case you will need to include the WS configuration settings into the main projects app config if its a winapp or web config if its a web app  This is the way to go even with PRISM and WPF Silverlight             Yes  but if you can t change main project  Orchard CMS for example   you can keep WCF service config in your project    You need to create a service helper with client generation method   public static class ServiceClientHelper       public static T GetClient lt T gt  string moduleName  where T   IClientChannel               var channelType   typeof T           var contractType   channelType GetInterfaces   First i   gt  i Namespace    channelType Namespace           var contractAttribute   contractType GetCustomAttributes typeof ServiceContractAttribute   false  First   as ServiceContractAttribute           if  contractAttribute    null              throw new Exception  contractAttribute not configured               path to your lib app config  mark as  Copy Always  in properties          var configPath   HostingEnvironment MapPath String Format    Modules  0  bin  0  dll config   moduleName              var configuration   ConfigurationManager OpenMappedExeConfiguration new ExeConfigurationFileMap   ExeConfigFilename   configPath    ConfigurationUserLevel None           var serviceModelSectionGroup   ServiceModelSectionGroup GetSectionGroup configuration            if  serviceModelSectionGroup    null              throw new Exception  serviceModelSectionGroup not configured             var endpoint   serviceModelSectionGroup Client Endpoints OfType lt ChannelEndpointElement gt    First e   gt  e Contract    contractAttribute ConfigurationName           var channelFactory   new ConfigurationChannelFactory lt T gt  endpoint Name  configuration  null           var client   channelFactory CreateChannel            return client            and use it   using  var client   ServiceClientHelper GetClient lt IDefaultNameServiceChannel gt  yourLibName                         get data from service                     See details in this article

User · Answer

I was getting this error within an ASP NET application where the WCF service had been added to a class library which is being added to the ASP NET application as a referenced  dll file in the bin folder  To resolve the error  the config settings in the app config file within the class library referencing the WCF service needed to be copied into the web config settings for the ASP NET site app

User · Answer

This error can arise if you are calling the service in a class library and calling the class library from another project                    In this case you will need to include the WS configuration settings into the main projects app config if its a winapp or web config if its a web app  This is the way to go even with PRISM and WPF Silverlight             Yes  but if you can t change main project  Orchard CMS for example   you can keep WCF service config in your project    You need to create a service helper with client generation method   public static class ServiceClientHelper       public static T GetClient lt T gt  string moduleName  where T   IClientChannel               var channelType   typeof T           var contractType   channelType GetInterfaces   First i   gt  i Namespace    channelType Namespace           var contractAttribute   contractType GetCustomAttributes typeof ServiceContractAttribute   false  First   as ServiceContractAttribute           if  contractAttribute    null              throw new Exception  contractAttribute not configured               path to your lib app config  mark as  Copy Always  in properties          var configPath   HostingEnvironment MapPath String Format    Modules  0  bin  0  dll config   moduleName              var configuration   ConfigurationManager OpenMappedExeConfiguration new ExeConfigurationFileMap   ExeConfigFilename   configPath    ConfigurationUserLevel None           var serviceModelSectionGroup   ServiceModelSectionGroup GetSectionGroup configuration            if  serviceModelSectionGroup    null              throw new Exception  serviceModelSectionGroup not configured             var endpoint   serviceModelSectionGroup Client Endpoints OfType lt ChannelEndpointElement gt    First e   gt  e Contract    contractAttribute ConfigurationName           var channelFactory   new ConfigurationChannelFactory lt T gt  endpoint Name  configuration  null           var client   channelFactory CreateChannel            return client            and use it   using  var client   ServiceClientHelper GetClient lt IDefaultNameServiceChannel gt  yourLibName                         get data from service                     See details in this article

User · Answer

In my case  I Add service in both start up project and projects that use service with the same name  It worked

User · Answer

In my case  I was referring to this service from a library project  not a startup Project  Once I copied  lt system serviceModel gt  section to the configuration of the main startup project  The issue got resolved   During running stage of any application  the configuration will be read from the startup parent project instead of reading its own configurations mentioned in separate subprojects

User · Answer

I got same error and I have tried many things but  didn t work  than I noticed that my  contract  was not same at all projects  I changed the contract as would be same for all projects inside solution and than it worked  This is project A   lt client gt       lt endpoint address  https   xxxxxxxx  binding  basicHttpBinding  bindingConfiguration  basic  contract  ServiceReference IIntegrationService  name  basic    gt   lt  client gt    Project B     lt client gt       lt endpoint address  xxxxxxxxxxxxx  binding  basicHttpBinding  bindingConfiguration  basic  contract  ServiceReference1 IIntegrationService  name  basic    gt   lt  client gt    Finally I changed for both as     lt client gt       lt endpoint address  https   xxxxxxxxxxx  binding  basicHttpBinding  bindingConfiguration  basic  contract  MyServiceReferrence IIntegrationService  name  basic    gt   lt  client gt

User · Answer

In case if you are using WPF application using PRISM framework then configuration should exist in your start up project  i e  in the project where your bootstrapper resides

User · Answer

In my case I had renamed app config to  appname  exe config manually  This ended up adding an extra  config suffix to the file name  Solution was to rename it to  appname  exe to eliminate the extra  config extension

User · Answer

Unit testing a non-library application that consumes a service can cause this problem   The information that others have entered addresses the root cause of this   If you are trying to write automated test cases and the unit you are testing will actually invoke the service interface  you need to add the service reference to the test project   This is a flavor of the application using library type of error   I did not immediately realize this though because my code that consumes the interface is not in a library   However  when the test actually runs it will be running from the test assembly  not the assembly under test     Adding a service reference to the unit test project resolved my issue

User · Answer

I found  as well as copying to the client UI s App config as I was using a Class Library interface  I had to prefix the name of the binding with the name of the Service Reference  mine is ServiceReference in the below    e g     lt endpoint address  http   localhost 4000 ServiceName  binding  basicHttpBinding        bindingConfiguration  BasicHttpBinding ISchedulerService        contract  ServiceReference ISchedulerService         name  BasicHttpBinding ISchedulerService    gt    instead of the default generated    lt endpoint address  http   localhost 4000 ServiceName  binding  basicHttpBinding        bindingConfiguration  BasicHttpBinding ISchedulerService        contract  ISchedulerService         name  BasicHttpBinding ISchedulerService    gt

User · Answer

I Have a same Problem I m Used the WCF Service in class library and calling the class library from windows Application project but I m Forget Change  lt system serviceModel gt  In Config File of windows application Project same the  lt system serviceModel gt  of Class Library s app Config file   solution  change Configuration of outer project same the class library s wcf configuration

User · Answer

In case if you are using WPF application using PRISM framework then configuration should exist in your start up project  i e  in the project where your bootstrapper resides

User · Answer

I ve had this same issue   It turns out that for a web REFERENCE  you have to supply the URL as the first parameter to the constructor   new WebService WebServiceSoapClient  http   myservice com moo aspx      For a new style web SERVICE REFERENCE  you have to supply a name that refers to an endpoint entry in the configuration   new WebService WebServiceSoapClient  WebServiceEndpoint      With a corresponding entry in Web config or App config    lt client gt         lt endpoint address  http   myservice com moo aspx          binding  basicHttpBinding           bindingConfiguration  WebService          contract  WebService WebServiceSoap          name  WebServiceEndpoint    gt       lt  client gt     lt  system serviceModel gt    Pretty damn hard to remove the tunnel vision on  it worked in an older program

User · Answer

I Have a same Problem I m Used the WCF Service in class library and calling the class library from windows Application project but I m Forget Change  lt system serviceModel gt  In Config File of windows application Project same the  lt system serviceModel gt  of Class Library s app Config file   solution  change Configuration of outer project same the class library s wcf configuration

User · Answer

I had the same issue and it was solved only when the host application and the dll that used that endpoint had the same service reference name

User · Answer

Having tested several options  I finally solved this by using      contract  IMySOAPWebService    i e  without the full namespace in the config  For some reason the full name didn t resolve properly

User · Answer

In my case  I was referring to this service from a library project  not a startup Project  Once I copied  lt system serviceModel gt  section to the configuration of the main startup project  The issue got resolved   During running stage of any application  the configuration will be read from the startup parent project instead of reading its own configurations mentioned in separate subprojects

User · Answer

In my case I had renamed app config to  appname  exe config manually  This ended up adding an extra  config suffix to the file name  Solution was to rename it to  appname  exe to eliminate the extra  config extension

User · Answer

I ve had this same issue   It turns out that for a web REFERENCE  you have to supply the URL as the first parameter to the constructor   new WebService WebServiceSoapClient  http   myservice com moo aspx      For a new style web SERVICE REFERENCE  you have to supply a name that refers to an endpoint entry in the configuration   new WebService WebServiceSoapClient  WebServiceEndpoint      With a corresponding entry in Web config or App config    lt client gt         lt endpoint address  http   myservice com moo aspx          binding  basicHttpBinding           bindingConfiguration  WebService          contract  WebService WebServiceSoap          name  WebServiceEndpoint    gt       lt  client gt     lt  system serviceModel gt    Pretty damn hard to remove the tunnel vision on  it worked in an older program

User · Answer

I solved this  I think as others may have suggested  by creating the binding and endpoint address instances myself - because I did not want to add new settings to the config files  this is a replacement for some existing library code which is used widely  and previously used an older Web Service Reference etc    and so I wanted to be able to drop this in without having add new config settings everywhere   var remoteAddress   new System ServiceModel EndpointAddress  webServiceUrl    using  var productService   new ProductClient new System ServiceModel BasicHttpBinding    remoteAddress           set timeout     productService Endpoint Binding SendTimeout   new TimeSpan 0 0 0  webServiceTimeout          call web service method     productResponse   productService GetProducts         Edit  If you are using https then you need to use BasicHttpsBinding rather than BasicHttpBinding

User · Answer

I was getting this error within an ASP NET application where the WCF service had been added to a class library which is being added to the ASP NET application as a referenced  dll file in the bin folder  To resolve the error  the config settings in the app config file within the class library referencing the WCF service needed to be copied into the web config settings for the ASP NET site app

User · Answer

I had a situation like this  where i had   WCF Service Hosted somewhere Main Project Consumer Project of type  class Library  which has Service reference to a WCF Service Main project calls methods from consumer project   Now the Consumer project had all the related configuration setting in  lt system serviceModel gt  Tag of my app config  its was still throwing the same error as the above   All i did is added the same tag  lt system serviceModel gt  to my main project s app config file  and finally we were good to go   The Real problem  as far as in my case was  it was reading the wrong configuration file  Instead of consumer s app config  it was referring main proj s config  it took me two hours to figure that out

User · Answer

I had the same problem  but changing the contract namespace didn t work for me  So I tried a  Net 2 style web reference instead of a  Net 3 5 service reference  That worked   To use a Web reference in Visual Studio 2008  click on  Add Service Reference   then click  Advanced  when the dialog box appears  In that you will find an option that will let you use a Web reference instead of a Service reference

User · Answer

Having tested several options  I finally solved this by using      contract  IMySOAPWebService    i e  without the full namespace in the config  For some reason the full name didn t resolve properly

User · Answer

Unit testing a non-library application that consumes a service can cause this problem   The information that others have entered addresses the root cause of this   If you are trying to write automated test cases and the unit you are testing will actually invoke the service interface  you need to add the service reference to the test project   This is a flavor of the application using library type of error   I did not immediately realize this though because my code that consumes the interface is not in a library   However  when the test actually runs it will be running from the test assembly  not the assembly under test     Adding a service reference to the unit test project resolved my issue

User · Answer

In my case  I Add service in both start up project and projects that use service with the same name  It worked

User · Answer

I had the same Issue I was using desktop app and using Global Weather Web service    I deleted the service reference and added the web reference and problem solved Thanks

User · Answer

This error can arise if you are calling the service in a class library and calling the class library from another project

User · Answer

If you reference the web service in your class library then you have to copy app config to your windows application or console application  solution  change Configuration of outer project same the class library s wcf configuration   Worked for me

User · Answer

I have a situation which in the Unit test  I copied the app config file to the unit test project  So the unit test project also contains endpoint information

User · Answer

Having tested several options  I finally solved this by using      contract  IMySOAPWebService    i e  without the full namespace in the config  For some reason the full name didn t resolve properly

User · Answer

Do not put service client declaration line as class field   instead of this  create instance at each method that used in  So problem will be fixed  If you create service client instance as class field  then design time error occurs

User · Answer

This error can arise if you are calling the service in a class library and calling the class library from another project    In this case you will need to include the WS configuration settings into the main projects app config if its a winapp or web config if its a web app  This is the way to go even with PRISM and WPF Silverlight

User · Answer

I had this error when I was referencing the Contract in the  configuration file element without the global scope operator   i e    lt endpoint contract  global  MyNamepsace IMyContract       gt    works  but   lt endpoint contract  MyNamepsace IMyContract       gt    gives the  Could not find default endpoint element that references contract  error   The assembly containing MyNamepsace IMyContract is in a different assembly to the main application  so this may explain the need to use the global scope resolution

User · Answer

Ok  My case was a little diffrent but finally i have found the fix for it  I have  a Console EXE -  DLL -  Invoking WS1 -  DLL -  Invoking WS2  I have had both the configurations of the service model of WS1  and WS2 in the Console EXE config as recommended  - didnt solve the issue   But it still didn t work  until i have added the WebReference  of WS2 to WS1 also and not only to the DLL that actually creating and invoking the proxy of WS2

User · Answer

I had the same problem  but changing the contract namespace didn t work for me  So I tried a  Net 2 style web reference instead of a  Net 3 5 service reference  That worked   To use a Web reference in Visual Studio 2008  click on  Add Service Reference   then click  Advanced  when the dialog box appears  In that you will find an option that will let you use a Web reference instead of a Service reference

User · Answer

Do not put service client declaration line as class field   instead of this  create instance at each method that used in  So problem will be fixed  If you create service client instance as class field  then design time error occurs

User · Answer

The namespace in your config should reflect the rest of the namespace path after your client s default namespace  as configured in the project properties    Based on your posted answer  my guess is that your client is configured to be in the  Fusion DataExchange Workflows  namespace   If you moved the client code to another namespace you would need to update the config to match the remaining namespace path

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There seem to be several ways to create fix this issue  For me  the CRM product I am using was written in native code and is able to call my  NET dll  but I run into the configuration information needing to be at above the main application  For me  the CRM application isn t  NET  so I ended up having to put it in my machine config file  not where I want it   In addition  since my company uses Websense I had a hard time even adding the Service Reference due to a 407 Proxy Authentication Required issue  that to required a modification to the machine cong   Proxy solution                     To get the WCF Service Reference to work I had to copy the  information from the app config of my DLL to the main application config  but for me that was machine config   And I also had to copy the  endpoint information to that same file  Once I did that it starting working for me

[wcf] Could not find default endpoint element

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