Getting error while editing content source of search service application

Question

Hi,
when i edit the content source of SharePoint Search Service Application and click on OK Button then i get the following error.
Error it gives : An item with the same key has already been added.
and when i check it in ULS log it gives this.
Application error when access /_admin/search/editcontentsource.aspx, Error=An
item with the same key has already been added.  Server stack trace:    
 at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version,
FaultConverter faultConverter)   
 at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)   
 at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs,
TimeSpan timeout)   
 at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)   
 at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)    Exception rethrown
at [0]:    
 at Microsoft.Office.Server.Search.Internal.UI.SearchCentralAdminPageBase.ErrorHandler(Object sender, EventArgs e)   
 at Microsoft.Office.Server.Search.Internal.UI.SearchCentralAdminPageBase.OnError(EventArgs e)   
 at System.Web.UI.Page.HandleError(Exception e)   
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)   
 at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)   
 at System.Web.UI.Page.ProcessRequest()   
 at System.Web.UI.Page.ProcessRequest(HttpContext context)   
 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()   
 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
System.ServiceModel.FaultException`1[[System.ServiceModel.ExceptionDetail, System.ServiceModel, Version=4.0.0.0, Culture=neutral, PublicKeyToken=b77a5c561934e089]]:
An item with the same key has already been added.   Server stack trace:    
 at System.ServiceModel.Channels.ServiceChannel.ThrowIfFaultUnderstood(Message reply, MessageFault fault, String action, MessageVersion version,
FaultConverter faultConverter)   
 at System.ServiceModel.Channels.ServiceChannel.HandleReply(ProxyOperationRuntime operation, ProxyRpc& rpc)   
 at System.ServiceModel.Channels.ServiceChannel.Call(String action, Boolean oneway, ProxyOperationRuntime operation, Object[] ins, Object[] outs,
TimeSpan timeout)   
 at System.ServiceModel.Channels.ServiceChannelProxy.InvokeService(IMethodCallMessage methodCall, ProxyOperationRuntime operation)   
 at System.ServiceModel.Channels.ServiceChannelProxy.Invoke(IMessage message)    Exception rethrown
at [0]:    
 at Microsoft.Office.Server.Search.Internal.UI.SearchCentralAdminPageBase.ErrorHandler(Object sender, EventArgs e)   
 at Microsoft.Office.Server.Search.Internal.UI.SearchCentralAdminPageBase.OnError(EventArgs e)   
 at System.Web.UI.Page.HandleError(Exception e)   
 at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)   
 at System.Web.UI.Page.ProcessRequest(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)   
 at System.Web.UI.Page.ProcessRequest()   
 at System.Web.UI.Page.ProcessRequest(HttpContext context)   
 at System.Web.HttpApplication.CallHandlerExecutionStep.System.Web.HttpApplication.IExecutionStep.Execute()   
 at System.Web.HttpApplication.ExecuteStep(IExecutionStep step, Boolean& completedSynchronously)
Getting Error Message for Exception System.ServiceModel.FaultException`1[System.ServiceModel.ExceptionDetail]: An
item with the same key has already been added. (Fault Detail is equal to An ExceptionDetail, likely created by IncludeExceptionDetailInFaults=true, whose value is: System.ArgumentException: An
item with the same key has already been added.  
 at Microsoft.Office.Server.Search.Administration.SearchApi.WriteAndReturnVersion(CodeToRun`1 remoteCode, VoidCodeToRun localCode, Int32 versionIn)   
 at SyncInvokeEditContentSource(Object , Object[] , Object[] )   
 at System.ServiceModel.Dispatcher.SyncMethodInvoker.Invoke(Object instance, Object[] inputs, Object[]& outputs)   
 at System.ServiceModel.Dispatcher.DispatchOperationRuntime.InvokeBegin(MessageRpc& rpc)   
 at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage5(MessageRpc& rpc)   
 at System.ServiceModel.Dispatcher.ImmutableDispatchRuntime.ProcessMessage31(MessageRpc&
rpc)   
 at System.ServiceModel.Dispatcher.MessageRpc.Process(Boolean isOperationContextSet)).
Can anyone please help me, how can i resolved this issue.i am stuck :(
Thanks in advance
Muhammad Luqman

Answer 1

Also tried with this code, but no succeed.
Add-PSSnapin "Microsoft.SharePoint.PowerShell"
$searchapp = Get-SPEnterpriseSearchServiceApplication "Search Service Application"
$StartAddresses = "http://insite"
$cs = Get-SPEnterpriseSearchCrawlContentSource -SearchApplication $searchapp -identity "Local SharePoint sites"
$cs | Set-SPEnterpriseSearchCrawlContentSource –StartAddresses $StartAddresses
I have now only single content source and all others are removed now but still getting same error.
Muhammad Luqman