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We are having issues with our IFS Print Agent, we have installed it and seems to be working but while the service starts it stops within seconds.

 

The Print Agent log has the following…

 

<006] 16/03/2022 11:57:04: Starting REST Service...

<006] 16/03/2022 11:57:05: Registering...

<006] 16/03/2022 11:57:05: Registered as IFST

<006] 16/03/2022 11:57:05: Added printer mapping:  PRINTER1->DUMMY

>006] 16/03/2022 11:57:05: State changed: RUNNING

>010] 16/03/2022 11:57:05: Looking for jobs...

 

The window event viewer has the following exception…

 

Application: IFSPrintAgent.exe
Framework Version: v4.0.30319
Description: The process was terminated due to an unhandled exception.
Exception Info: System.Net.HttpListenerException
at System.Net.HttpListener.AddAllPrefixes()
at System.Net.HttpListener.Start()
at Microsoft.Owin.Host.HttpListener.OwinHttpListener.Start(System.Net.HttpListener, System.Func`2<System.Collections.Generic.IDictionary`2<System.String,System.Object>,System.Threading.Tasks.Task>, System.Collections.Generic.IList`1<System.Collections.Generic.IDictionary`2<System.String,System.Object>>, System.Collections.Generic.IDictionary`2<System.String,System.Object>, System.Func`2<System.String,System.Func`6<System.Diagnostics.TraceEventType,Int32,System.Object,System.Exception,System.Func`3<System.Object,System.Exception,System.String>,Boolean>>)
at Microsoft.Owin.Host.HttpListener.OwinServerFactory.Create(System.Func`2<System.Collections.Generic.IDictionary`2<System.String,System.Object>,System.Threading.Tasks.Task>, System.Collections.Generic.IDictionary`2<System.String,System.Object>)

Exception Info: System.Reflection.TargetInvocationException
at System.RuntimeMethodHandle.InvokeMethod(System.Object, System.Objecte], System.Signature, Boolean)
at System.Reflection.RuntimeMethodInfo.UnsafeInvokeInternal(System.Object, System.Objecte], System.Objecte])
at System.Reflection.RuntimeMethodInfo.Invoke(System.Object, System.Reflection.BindingFlags, System.Reflection.Binder, System.Objecte], System.Globalization.CultureInfo)
at Microsoft.Owin.Hosting.ServerFactory.ServerFactoryAdapter.Create(Owin.IAppBuilder)
at Microsoft.Owin.Hosting.Engine.HostingEngine.Start(Microsoft.Owin.Hosting.Engine.StartContext)
at IFSPrintAgent.RemotePrintingNode+<startRESTInterface>d__7.MoveNext()
at System.Runtime.ExceptionServices.ExceptionDispatchInfo.Throw()
at System.Threading.ExecutionContext.RunInternal(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.ExecutionContext.Run(System.Threading.ExecutionContext, System.Threading.ContextCallback, System.Object, Boolean)
at System.Threading.QueueUserWorkItemCallback.System.Threading.IThreadPoolWorkItem.ExecuteWorkItem()
at System.Threading.ThreadPoolWorkQueue.Dispatch()

 

 

Has anyone seen anything like this before?