It is CrystalReportViewer version problem
First remove all crystalreport dlls and remove all crystal report references from
web.config which contain version like '10.5.3700.0'
now add dll with 13 version.
now add control on aspx page if there is reference remaining on aspx page like
'
<%@ Register Assembly="CrystalDecisions.Web, Version=10.5.3700.0, Culture=neutral, PublicKeyToken=692fbea5521e1304"
Namespace="CrystalDecisions.Web" TagPrefix="CR" %>
' then change it like
'
<%@ Register Assembly="CrystalDecisions.Web, Version=13.0.2000.0, Culture=neutral, PublicKeyToken=692FBEA5521E1304"
'
copy version from web config which contain '13. . . ' and paste in aspx page reference tag
it will work .