title: Gettting an error while importing solution from dynamic crm online 2013 to crm 2011
body: <p>So here is my problem,
  I am trying to import the solution from crm 2013 online version to crm 2011 and while doing it, it throws an error message </p>
  
  <blockquote>
    <p>The import file is invalid. XSD validation failed with the following error: 'The element 'attribute' has invalid child element 'IntroducedVersion'.<br>
    List of possible elements expected:
    'LookupBrowse, MaxValue, ReferencedEntityObjectTypeCode,
    CanModifySearchSettings, MaxLength, CanModifyAdditionalSettings,
    XmlAbbreviation, AggregateOf, YomiOf, AttributeOf, AccuracySource,
    displaynames, Descriptions, Length, Accuracy, LinkedAttribute,
    CalculationOf, LookupTypes, CanModifyFieldLevelSecuritySettings,
    LookupStyle, Format, MinValue, OptionSetName,
    CanModifyRequirementLevelSettings, AppDefaultValue, optionset,
    IsRenameable, IsCustomizable'.</p>
  </blockquote>
  
  <p>This solution was first created in crm 2011 and then got upgraded to crm 2013 due to which when I try to bring it back to crm 2011, it is giving me this error message.</p>
  
  <p>Please help me out to work with this issue.</p>