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DiscoverMeasures throws NullReferenceException

joe asked on July 23, 2018

I’m using the MVC accelerator “Flexmonster.Accelerator.Controllers.FlexmonsterProxyController”.
When loading the pivot chart, it cycles through a few discovery steps, (dimensions, hierarchies, levels) but blows up on DiscoverMeasures.
The report then displays “Object reference not set to an instance of an object”.  It took me a while to expose the underlying stack trace as you are using NLog and I don’t use that logger, but I found it. See below. Any suggestion as to what might be the issue?

Start your code here2018-07-23 16:47:07.1524|ERROR|FlexmonsterProxy|Object reference not set to an instance of an object.
at Microsoft.AnalysisServices.HttpStream.ImpersonateLogonIdentityAndExecute(Action action)
at Microsoft.AnalysisServices.HttpStream.GetResponseStream()
at Microsoft.AnalysisServices.HttpStream.GetResponseDataType()
at Microsoft.AnalysisServices.CompressedStream.GetResponseDataType()
at Microsoft.AnalysisServices.XmlaClient.EndRequest(Boolean useBinaryXml)
at Microsoft.AnalysisServices.XmlaClient.CreateSession(ListDictionary properties, Boolean sendNamespaceCompatibility, String sessionToken)
at Microsoft.AnalysisServices.XmlaClient.Connect(ConnectionInfo connectionInfo, Boolean beginSession)
at Microsoft.AnalysisServices.Core.Server.Connect(String connectionString, String sessionId, ObjectExpansion expansionType)
at Microsoft.AnalysisServices.Core.Server.Connect(String connectionString)
at Flexmonster.Accelerator.Controllers.FlexmonsterProxyController.DiscoverMeasures(DiscoverArgs args)

1 answer

Tanya Gryshko Tanya Gryshko Flexmonster July 25, 2018

Hello, Joe,
Thank you for writing to us.
Could you please share the URL to your server? This would greatly help us in the investigation process. You can send all the sensitive information by replying to email notification.

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