将服务添加到客户端时发生WCF错误.
问题描述：
在添加我的服务引用时出现以下错误.帮助
I get this ERROR below on adding my service reference. HELP
There was an error downloading 'http://localhost:50564/WebService/ApplicationUsers.svc'.
The request failed with the error message:
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<title>The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found.</title>
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<span><H1>Server Error in '/' Application.<hr width=100% size=1 color=silver></H1>
<h2> <i>The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found.</i> </h2></span>
<font face="Arial, Helvetica, Geneva, SunSans-Regular, sans-serif ">
<b> Description: </b>An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
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<b> Exception Details: </b>System.InvalidOperationException: The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found.<br><br>
<b>Source Error:</b> <br><br>
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An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.</code>
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<b>Stack Trace:</b> <br><br>
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<code><pre>
[InvalidOperationException: The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found.]
System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses) +51530
System.ServiceModel.HostingManager.CreateService(String normalizedVirtualPath) +1461
System.ServiceModel.HostingManager.ActivateService(String normalizedVirtualPath) +44
System.ServiceModel.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath) +651
[ServiceActivationException: The service '/WebService/ApplicationUsers.svc' cannot be activated due to an exception during compilation. The exception message is: The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found..]
System.Runtime.AsyncResult.End(IAsyncResult result) +688590
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result) +190
System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, String routeServiceVirtualPath, Boolean flowContext, Boolean ensureWFService) +234
System.ServiceModel.Activation.HttpHandler.ProcessRequest(HttpContext context) +24
System.Web.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute() +100
System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously) +75
</pre></code>
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<b>Version Information:</b> Microsoft .NET Framework Version:4.0.30319; ASP.NET Version:4.0.30319.272
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<!--
[InvalidOperationException]: The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found.
at System.ServiceModel.Activation.ServiceHostFactory.CreateServiceHost(String constructorString, Uri[] baseAddresses)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.CreateService(String normalizedVirtualPath)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.ActivateService(String normalizedVirtualPath)
at System.ServiceModel.ServiceHostingEnvironment.HostingManager.EnsureServiceAvailable(String normalizedVirtualPath)
[ServiceActivationException]: The service '/WebService/ApplicationUsers.svc' cannot be activated due to an exception during compilation. The exception message is: The type 'CoM.TSigns.UI.Web.WebService.ApplicationUsers', provided as the Service attribute value in the ServiceHost directive, or provided in the configuration element system.serviceModel/serviceHostingEnvironment/serviceActivations could not be found..
at System.Runtime.AsyncResult.End[TAsyncResult](IAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.End(IAsyncResult result)
at System.ServiceModel.Activation.HostedHttpRequestAsyncResult.ExecuteSynchronous(HttpApplication context, String routeServiceVirtualPath, Boolean flowContext, Boolean ensureWFService)
at System.ServiceModel.Activation.HttpHandler.ProcessRequest(HttpContext context)
at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()
at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
-->
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Metadata contains a reference that cannot be resolved: 'http://localhost:50564/WebService/ApplicationUsers.svc'.
The server did not provide a meaningful reply; this might be caused by a contract mismatch, a premature session shutdown or an internal server error.
If the service is defined in the current solution, try building the solution and adding the service reference again.
答
您能否指定您是否能够在WCF应用程序中浏览该服务.
Hi,
Can u specify whether u can able to browse the service in the WCF Application.
我无法浏览该服务.
还有一个问题.我是否必须在IIS上单独托管Web服务，而不是将其作为Silverlight Web项目的一部分?
I am not able to browse the service.
One more question. Do I have to host the web service separately on the IIS and not as a part of the silverlight Web project ?