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[WCF Duplex]Could not find endpoint element that references contract in the ServiceModel client configuration section

I have a publish-subscribe notification running with wcf duplex wsdualhttpbinding. But when I started to subscribe in client side, I got the message:
"Could not find endpoint element that references contract in the ServiceModel client configuration section.This might be because no configuration file was found for your application or because no endpoint element matching this contract could be found in the client element"
App.config client
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<system.serviceModel>
<bindings>
<wsDualHttpBinding>
<binding name="WSDualHttpBinding_IRecipeTemplateService" />
<binding name="Basic1" />
</wsDualHttpBinding>
</bindings>
<client>
<endpoint address="http://172.18.26.14/CentralService/Services/NotificationService.svc"
binding="wsDualHttpBinding" bindingConfiguration="Basic1"
contract="CentralNotificationService.INotificationService"
name="Basic1">
<identity>
<servicePrincipalName value="host/myclienthost" />
</identity>
</endpoint>
</client>
</system.serviceModel>
</configuration>
Web.config
<?xml version="1.0"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
</configSections>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.6.1" />
<httpRuntime targetFramework="4.6.1"/>
</system.web>
<connectionStrings>
<add name="RecipeDB" providerName="MySql.Data.MySqlClient"
connectionString="Server=localhost; Port=3306; Database=recipe_db; Uid=root; Pwd=root" />
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework"/>
<providers>
<provider invariantName="MySql.Data.MySqlClient"
type="MySql.Data.MySqlClient.MySqlProviderServices, MySql.Data.EntityFramework"/>
<provider invariantName="System.Data.SqlClient"
type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer"/>
</providers>
</entityFramework>
<system.data>
<DbProviderFactories>
<remove invariant="MySql.Data.MySqlClient" />
<add name="MySQL Data Provider" invariant="MySql.Data.MySqlClient" description=".Net Framework Data Provider for MySQL"
type="MySql.Data.MySqlClient.MySqlClientFactory, MySql.Data, Version=8.0.28.0, Culture=neutral, PublicKeyToken=c5687fc88969c44d" />
</DbProviderFactories>
</system.data>
<system.serviceModel>
<services>
<service behaviorConfiguration="mexBehavior" name="RecipeServer.Central.Service.Services.NotificationService">
<endpoint address="" binding="wsDualHttpBinding"
name="Basic" contract="RecipeServer.Central.Service.Interfaces.INotificationService" />
<endpoint address="mex" binding="mexHttpBinding" bindingConfiguration=""
name="mexdata" contract="IMetadataExchange" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="mexBehavior">
<serviceMetadata httpGetEnabled="true" />
</behavior>
<behavior name="">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<protocolMapping>
<add binding="wsDualHttpBinding" scheme="http" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true"/>
<!--
To browse web app root directory during debugging, set the value below to true.
Set to false before deployment to avoid disclosing web app folder information.
-->
<directoryBrowse enabled="true"/>
</system.webServer>
</configuration>
Code in client side
InstanceContext site = new InstanceContext(new ServiceCallBack());
try
{
client = new NotificationServiceClient(site);
}
catch (Exception e) {
RecipeLogger.GetInstance.ErrorLog(e.Message);
RecipeLogger.GetInstance.ErrorLog(e.StackTrace);
}
WSDualHttpBinding binding = (WSDualHttpBinding)client.Endpoint.Binding;
RecipeLogger.GetInstance.DebugLog("2");
binding.ClientBaseAddress = new Uri("http://localhost:8000/myClient/");
string clientcallbackaddress = binding.ClientBaseAddress.AbsoluteUri;
RecipeLogger.GetInstance.DebugLog(String.Format("Client baseadd {0}", clientcallbackaddress));
clientcallbackaddress += Guid.NewGuid().ToString();
binding.ClientBaseAddress = new Uri(clientcallbackaddress);
RecipeLogger.GetInstance.DebugLog("Subscribe to central");
client.Subscribe();
client.Close();

After having fixed this issue for nearly a week, I realized that I have multiples project in a solution, and the initial project was service project, and it had a web.config, so when run the project, the VS read the web.config and ignored all app.config at others project.
So the solution here is I just moved all settings code in app.config into web.config

RESTful windows authentication

I've set up a RESTful WCF web service on our server (IIS 8.5 running on Windows Server 2012 R2). I can connect remotely and run exposed methods no problem.
I get a problem when the method contains a connection to a database. Despite having windows authentication set up in IIS, the username passed through to the database is defaulting to the machine default, which is wrong.
I'm currently using this web.config:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<identity impersonate="true"/>
<customErrors mode="Off"/>
<compilation debug="true" targetFramework="4.5.2" />
<httpRuntime targetFramework="4.5.2" />
</system.web>
<system.serviceModel>
<services>
<service name="AriaRestFul2.Service1" behaviorConfiguration="AriaRestFul2.Service1Behavior">
<endpoint address="../Service1.svc" binding="webHttpBinding" contract="AriaRestFul2.IService1" behaviorConfiguration="webBehaviour" bindingConfiguration="restbinding">
<identity>
<dns value="localhost"/>
</identity>
</endpoint>
<endpoint address="mex" binding="webHttpBinding" contract="IMetadataExchange" bindingConfiguration="restbinding"/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="AriaRestFul2.Service1Behavior">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false"/>
</behavior>
</serviceBehaviors>
<endpointBehaviors>
<behavior name="webBehaviour">
<webHttp />
</behavior>
</endpointBehaviors>
</behaviors>
<bindings>
<webHttpBinding>
<binding name="restbinding">
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Windows"/>
</security>
</binding>
</webHttpBinding>
</bindings>
</system.serviceModel>
<system.webServer>
<httpErrors errorMode="Detailed" />
<modules runAllManagedModulesForAllRequests="true" />
<validation validateIntegratedModeConfiguration="false"/>
<directoryBrowse enabled="true" />
</system.webServer>
<connectionStrings>
<add name="AriaEntities" connectionString="metadata=res://*/Aria.csdl|res://*/Aria.ssdl|res://*/Aria.msl;provider=System.Data.SqlClient;provider connection string="data source=<instance>;initial catalog=Aria;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
The database I'm connecting to is through EF6. I'm using chrome as the client to pass in the URL to the service. I'm worried that this setup might require the credentials to be assigned in code in a client. If this is the case, is there anyway I can configure the service to just pass through the current user from the browser?

WcfTestClient: Failed to add a service. Service metadata may not be accessible

at the beginning sorry for my English.
I know that there are already answers for this question but none of them worked for me.
I am trying to connect to my database.
I am working on:
Microsoft Visual Studio Community 2015 version 14.0.25431.01 Update 3.
Microsoft .NET Framework Version 4.6.01586
I have already checked Tools->Options->Project and Solutions->Web Projects->Use the 64 bit version of IIS Express for web sites and projects.
My code from View Markup (Service1.svc):
<%# ServiceHost Language="C#" Debug="true" Service="WCFconnection.Service1" CodeBehind="Service1.svc.cs" %>
here is my Web.config
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=XXXXXXXXXXXX" requirePermission="false" />
</configSections>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.5.2" />
<httpRuntime targetFramework="4.5.2" />
<httpModules>
<add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" />
</httpModules>
</system.web>
<system.serviceModel>
<services>
<service name="WCFconnection.Service1"
behaviorConfiguration="metadataBehavior">
<endpoint address="" binding="basicHttpBinding" contract="WCFconnection.IService1" />
<endpoint address="basic" binding="basicHttpBinding" contract="WCFconnection.IService1" />
<endpoint address="mex" binding="mexHttpBinding" contract="IMetadataExchange" />
<endpoint address="localhost:23233/Service1.svc"
binding="basicHttpBinding"
contract="WCFconnection.IService1"
/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="metadataBehavior">
<serviceMetadata httpGetEnabled="true" />
</behavior>
<behavior name="DefaultBehavior">
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
</behaviors>
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
</system.serviceModel>
<system.webServer>
<modules runAllManagedModulesForAllRequests="true">
<remove name="ApplicationInsightsWebTracking" />
<add name="ApplicationInsightsWebTracking" type="Microsoft.ApplicationInsights.Web.ApplicationInsightsHttpModule, Microsoft.AI.Web" preCondition="managedHandler" />
</modules>
<directoryBrowse enabled="true" />
<validation validateIntegratedModeConfiguration="false" />
</system.webServer>
<connectionStrings>
<add name="ZPIEntities" connectionString="metadata=res://*/Model1.csdl|res://*/Model1.ssdl|res://*/Model1.msl;provider=System.Data.SqlClient;provider connection string="data source=XXXXXX-XXXXXX;initial catalog=XXXXXX;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
<add name="ConStr" connectionString="Data Source=XXXXXXX-XXXXXXXX\XXXXXXX;Initial Catalog=XXXXXXX;Integrated Security=True"/>
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="mssqllocaldb" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
When I go to website and put localhost:23233 into address I can see all the files, also my Service1.svc. But if I try to make WcfTestClient I got error:
Failed to add a service. Service metadata may not be accessible. Make sure your service is running and exposing metadata.
Error: Cannot obtain Metadata from http://localhost:23233/ If this is a Windows (R) Communication Foundation service to which you have access, please check that you have enabled metadata publishing at the specified address...
Please help me.

Based on the error that WcfTestClient is giving you, you are not providing the full endpoint url.
You are adding http://localhost:23233/
You should be adding http://localhost:23233/Service1.svc

WCF used as service reference: how do it?

I've my RESTful service hosted here .
I can use it perfectly with get&post http request.
How can I use as "service reference" in a Visual Studio project? I have added it in my test project and I see the methods correctly, but, when I try to call on of them, I get the "could not find default endpoint element that references contract in the servicemodel client" error, with http code 404.
So, I'm trying to modify my web.config file, but I get only different errors. For example, now I have try to add a SOAP endpoint,but I get a "bad request" error.
This is one of my methods (they are defined in the same way)
[OperationContract]
[WebGet(UriTemplate = "impianto.json?retista={codret}&storeID={storeID}&H={hashedString}", ResponseFormat = WebMessageFormat.Json)]
List<WrapImpianti> GetImpiantoJSON(string codret, string storeID, string hashedString);
and this is the web.config file:
<?xml version="1.0" encoding="utf-8"?>
<configuration>
<configSections>
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<appSettings>
<add key="aspnet:UseTaskFriendlySynchronizationContext" value="true" />
<add key="ClientSettingsProvider.ServiceUri" value="" />
<add key="ServerAddress" value="37.59.146.241:8099/isOverviewExport.svc" />
</appSettings>
<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime targetFramework="4.5" />
</system.web>
<system.serviceModel>
<services>
<service name="isOverviewExport.Service1" behaviorConfiguration="MyBehavior">
<endpoint address="soap" behaviorConfiguration="soapBehavior" binding="basicHttpBinding" name="s" contract="isOverviewExport.isOverviewExport"/>
<endpoint address="rest" behaviorConfiguration="restBehavior" binding="webHttpBinding" name="base" contract="isOverviewExport.isOverviewExport">
<identity>
<dns value="localhost" />
</identity>
</endpoint>
</service>
</services>
<bindings>
<webHttpBinding>
<binding name="SecurityByTransport" maxBufferPoolSize="2147483647" maxBufferSize="2147483647" maxReceivedMessageSize="2147483647">
<readerQuotas maxDepth="2000000" maxStringContentLength="2147483647" maxArrayLength="2147483647" maxBytesPerRead="2147483647" maxNameTableCharCount="2147483647" />
<security mode="TransportCredentialOnly">
<transport clientCredentialType="Basic" />
</security>
</binding>
</webHttpBinding>
</bindings>
<extensions>
<behaviorExtensions>
<add name="CorsSupport" type="WebHttpCors.CorsSupportBehaviorElement, WebHttpCors, Version=1.0.0.0, Culture=neutral, PublicKeyToken=null" />
</behaviorExtensions>
</extensions>
<behaviors>
<endpointBehaviors>
<behavior name="restBehavior">
<!--<enableWebScript/>-->
<webHttp helpEnabled="true" />
<CorsSupport />
</behavior>
<behavior name="soapBehavior">
</behavior>
</endpointBehaviors>
<serviceBehaviors>
<behavior name="MyBehavior">>
<serviceMetadata httpGetEnabled="true" httpsGetEnabled="true" />
<serviceDebug includeExceptionDetailInFaults="true" />
<dataContractSerializer ignoreExtensionDataObject="true" maxItemsInObjectGraph="123456" />
</behavior>
</serviceBehaviors>
</behaviors>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" multipleSiteBindingsEnabled="true" />
<protocolMapping>
<add binding="basicHttpsBinding" scheme="https" />
</protocolMapping>
</system.serviceModel>
<system.webServer>
<directoryBrowse enabled="true" />
</system.webServer>
<connectionStrings>
<add name="Entities" connectionString="metadata=res://*/AccessData.Model.csdl|res://*/AccessData.Model.ssdl|res://*/AccessData.Model.msl;provider=System.Data.SqlClient;provider connection string="data source=myds;initial catalog=mydb;persist security info=True;user id=myuser;password=mypwd;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.SqlConnectionFactory, EntityFramework" />
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
</configuration>
You can also try yourself adding the service reference (the link is the same as above, http://37.59.146.241:8097/isOverviewExport.svc ). Why the second line of this snippet gives me the error I wrote above?
var svc = new ServiceReference5.isOverviewExportClient();
var ret = svc.GetImpiantoXML("123456", "AAA111", "test");
So, how can I use it as service reference in VS? I was thinking I have to set the soap endpoint, but maybe it isn't correct. Can you help me? :)

Metadata error in Walkthrough: Binding WPF Controls to a WCF Data Service

Like in this Question
I cant go on because of metadata.
It still doesnt work for me. I changed the localhost number
address="http://localhost:54786/AdventureWorksService/mex"
the rest I left how it was but it did not work... tryed it in APP.CONFIG or WEB.CONFIG... I tryed even with adding <system.serviceModel>...</system.serviceModel>
I still get the metadata error. Please help me with detailed solution if possible.
Here is the web.config
<configuration>
<configSections>
<!-- For more information on Entity Framework configuration, visit http://go.microsoft.com/fwlink/?LinkID=237468 -->
<section name="entityFramework" type="System.Data.Entity.Internal.ConfigFile.EntityFrameworkSection, EntityFramework, Version=6.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089" requirePermission="false" />
</configSections>
<system.web>
<compilation debug="true" targetFramework="4.5" />
<httpRuntime tar
getFramework="4.5" />
</system.web>
<connectionStrings>
<add name="AdventureWorks2012Entities" connectionString="metadata=res://*/AdventureWorksModel.csdl|res://*/AdventureWorksModel.ssdl|res://*/AdventureWorksModel.msl;provider=System.Data.SqlClient;provider connection string="data source=(localdb)\Projects;initial catalog=AdventureWorks2012;integrated security=True;MultipleActiveResultSets=True;App=EntityFramework"" providerName="System.Data.EntityClient" />
</connectionStrings>
<entityFramework>
<defaultConnectionFactory type="System.Data.Entity.Infrastructure.LocalDbConnectionFactory, EntityFramework">
<parameters>
<parameter value="v11.0" />
</parameters>
</defaultConnectionFactory>
<providers>
<provider invariantName="System.Data.SqlClient" type="System.Data.Entity.SqlServer.SqlProviderServices, EntityFramework.SqlServer" />
</providers>
</entityFramework>
<system.serviceModel>
<serviceHostingEnvironment aspNetCompatibilityEnabled="true" />
</system.serviceModel>
<system.webServer>
<directoryBrowse enabled="true" showFlags="Date,Time,Extension,Size" />
</system.webServer>
</configuration>
And here is the app.config
<configuration>
<startup>
<supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.5" />
</startup>
<!--<system.serviceModel>-->
<services>
<service name="AdventureWorksService"
behaviorConfiguration="metadataSupport">
<endpoint
address="http://localhost:54786/AdventureWorksService/mex"
binding="mexHttpBinding"
contract="IMetadataExchange"
/>
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="metadataSupport">
<serviceMetadata/>
</behavior>
</serviceBehaviors>
</behaviors>
<!--</system.serviceModel>-->
</configuration>

Some missing information in the question, but I'll give it a guess.
You do not expose metadata, which in turn prevents you from adding a service reference. Doublecheck that you have the httpGetEnabled="true" in the configuration (web.config) for application that hosts the service. If you are using HTTPS, then switch the element with httpsGetEnabled="true". You can combine the two if needed.
<serviceBehaviors>
<behavior name="">
<serviceMetadata httpGetEnabled="true"/>
<serviceDebug includeExceptionDetailInFaults="false" />
</behavior>
</serviceBehaviors>
EDIT: You would get a clear message stating this if you try to open the given service url in your browser.
EDIT2:
You need to include a service behavior, and the service endpoint with a contract. The name attribute refers to the service implementation. The namespace for the service, including the service name but without the .svc file extension. The contract attribute refers to the contract interface which that is also created when you choose new wcf service.
<system.serviceModel>
<services>
<service
name="MyApp.Services.MyService"
behaviorConfiguration="MyServiceBehavior">
<endpoint address=""
binding="wsHttpBinding"
contract="MyApp.Services.IMyService" />
</service>
</services>
<behaviors>
<serviceBehaviors>
<behavior name="MyServiceBehavior">
<serviceMetadata httpGetEnabled="True"/>
<serviceDebug includeExceptionDetailInFaults="False" /> <!-- Set this to true to return exception details to the calling client. -->
</behavior>
</serviceBehaviors>
</behaviors>
</system.serviceModel>
Try adding this configuration and edit the appropriate attributes, and then open the service in a web browser. The client should automatically get the app.config updated when you add the service through the Add Service Reference in Visual Studio.