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:
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) |