Daktronics

Unable to Open or Save a Specific Presentation get error Object reference not set to an instance of an object

Potential Symptoms

  • Unable to Open or Save a Specific Presentation get error Object reference not set to an instance of an object.
    • Error:
      Daktronics Content Studio
      Object reference not set to an instance of an object.

Environment

  • Product Family: Software
  • Product:
  • Component: Content Studio
  • Control System: Venus 1500 (4.14.2 or Lower)

Cause

  • The root cause of the problem is that the reader quotas setup within the control system clients and Nucleus Server are not high enough for xml-heavy messages.

How to verify error in the ContentStudio.log file.
  1. Go to the following location:
    • Windows XP - C:\Documents and Settings\All Users\Application Data\Daktronics\Content Studio\Log
    • Windows Vista\7 - C:\Program Data\Daktronics\Content Studio\Logs
  2. Double-click ContentStudio.log text document to open.
  3. Scan through errors and logs locate the following error:

System.ServiceModel.Dispatcher.NetDispatcherFaultException: The formatter threw an exception while trying to deserialize the message: There was an error while trying to deserialize parameter http//standards.daktronics.com/schemas/NucleusServer_1_0:GetFileResult. The InnerException message was 'There was an error deserializing the object of type Daktronics.Nucleus.ServiceContract.Data.File. The 'maximum bytes per Read operation' quota (4096) has been exceeded while reading XML data. Long element start tags (consisting of the element name, attribute names and attribute values) may trigger this quota. This quota may be increased by changing the MaxBytesPerRead property on the XmlDictionaryReaderQuotas object used when creating the XML reader.'.  Please see InnerException for more details. ---> System.Runtime.Serialization.SerializationException: There was an error deserializing the object of type Daktronics.Nucleus.ServiceContract.Data.File. The 'maximum bytes per Read operation' quota (4096) has been exceeded while reading XML data. Long element start tags (consisting of the element name, attribute names and attribute values) may trigger this quota. This quota may be increased by changing the MaxBytesPerRead property on the XmlDictionaryReaderQuotas object used when creating the XML reader. ---> System.Xml.XmlException: The 'maximum bytes per Read operation' quota (4096) has been exceeded while reading XML data. Long element start tags (consisting of the element name, attribute names and attribute values) may trigger this quota. This quota may be increased by changing the MaxBytesPerRead property on the XmlDictionaryReaderQuotas object used when creating the XML reader.

DD2171226_2.jpg

Resolution

KB ID: DD2171226

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