Error information:

Error in XSD Validation of the dataDescription. Unhandled Exception:

System.Xml.Schema.XmlSchemaValidationException: The 'alias' attribute is not declared.   

at System.Xml.Schema.XmlSchemaValidator.SendValidationEvent(XmlSchemaValidationException e, XmlSeverityType severity)   

at System.Xml.Schema.XmlSchemaValidator.SendValidationEvent(String code, String arg)   

at System.Xml.Schema.XmlSchemaValidator.ValidateAttribute(String lName, String ns, XmlValueGetter attributeValueGetter, String attributeStringValue, XmlSchemaInfo schemaInfo)   

at System.Xml.XsdValidatingReader.ValidateAttributes()   

at System.Xml.XsdValidatingReader.ProcessElementEvent()   

at System.Xml.XsdValidatingReader.Read()   

at Microsoft.Crm.Visualizations.FetchXmlVisualizationDataModule.ValidateWithXsd(XmlDocument doc)

 

Solutions: how to resolvethis issue:

Install the Rollup greater then Rollup 5 can resolve this issue.