Error "Unable to find a Delivery Controller" when you launch Citrix Studio

Error "Unable to find a Delivery Controller" when you launch Citrix Studio

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Article ID: CTX235574

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Updated On:

Description

Under rare conditions, when you launch Citrix Studio you might get the error 'Unable to find a Delivery Controller' as shown in the screenshot below:

User-added image
Additionally, following event is recorded in Windows Application log:

Source:Citrix Configuration Service
Event ID:1007
Description:Otherwise unhandled exception in WCF call : System.ServiceModel.CommunicationException: Internal Error ---> System.NullReferenceException: Object reference not set to an instance of an object.
   at Citrix.Fma.Sdk.InterServiceManager.WcfClientBase`1.SelectNewConnection()
   at Citrix.Fma.Sdk.InterServiceManager.WcfClientBase`1.RegisteredCallAndRetry[TResult](Func`2 operation)
   --- End of inner exception stack trace ---
   at Citrix.Fma.Sdk.InterServiceManager.WcfClientBase`1.RegisteredCallAndRetry[TResult](Func`2 operation)
   at Citrix.InterService.DelegatedAdminApi.DelegatedAdminApiClient.CheckGlobalAccess(Boolean& accessGranted, String[] sids, String serviceType, String operation)
   at Citrix.Fma.Sdk.ServiceCore.DelegatedAdminProvider.DemandPermission(String operation)
   at Citrix.Fma.Sdk.ServiceCore.DelegatedAdminProvider.DemandPermission(String operation, ServiceRegistrationStates localAdminStates)
   at Citrix.Fma.Sdk.ServiceCore.ServiceCore.<>c__DisplayClass23_0.<GetServiceStatus>b__0()
   at Citrix.Fma.Sdk.ServiceCore.ServiceCore.CheckedCall[T](String name, Func`1 operation, Func`2 defaultValue, Enum code)

Resolution

To resolve this issue, start the Citrix Delegated Administration Service. If you have more than one Delivery Controllers in the site, make sure the service startup type is set to 'Automatic' and the service is 'Running' on all Delivery Controllers.

Problem Cause

This issue can occur if Citrix Delegated Administration Service is not started.

Issue/Introduction

Error "Unable to find a Delivery Controller" when you launch Citrix Studio