i have already mention the dll library then thy give me erro

The framework for project properties was set as .net Framework 4 client profile and I changed it to .net Framework 4

 

 check this link for reference

 

https://social.msdn.microsoft.com/Forums/en-US/b072bae1-2a10-4316-b4ff-101eec6e2e90/the-type-or-namespace-name-crystalreports-does-not-exist-in-the-namespace-crystaldecisions-are?forum=vscrystalreports