The format of the specified network name is invalid ---> System.Net.HttpListenerException: The format of the specified network name is invalid

Recently i got the error

Exception Message: Opening exception
System.ServiceModel.CommunicationException: The format of the specified network name is invalid ---> System.Net.HttpListenerException: The format of the specified network name is invalid
at System.Net.HttpListener.AddAllPrefixes()
at System.Net.HttpListener.Start()
at System.ServiceModel.Channels.SharedHttpTransportManager.OnOpen()
--- End of inner exception stack trace ---
at System.ServiceModel.Channels.SharedHttpTransportManager.OnOpen()
at System.ServiceModel.Channels.TransportManager.Open(TransportChannelListener channelListener)
at System.ServiceModel.Channels.TransportManagerContainer.Open(SelectTransportManagersCallback selectTransportManagerCallback)
at System.ServiceModel.Channels.TransportChannelListener.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.HttpChannelListener.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.Dispatcher.ChannelDispatcher.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)
at System.ServiceModel.ServiceHostBase.OnOpen(TimeSpan timeout)
at System.ServiceModel.Channels.CommunicationObject.Open(TimeSpan timeout)

i figure out that earlier i used httpcfg to listen to my previous ip x.x.x.x:8080. Though i removed it but it was giving me the same error. The next day i restart my PC and the error disappears. The conclusion was that if you remove iplisten through httpcfg, then you must restart your PC and the above error will be resolved.