CrystalReport: The Type or Namespace name 'CrystalDecisions' Could not be Found in Visual Studio 2010

Introduction: 

Here I will explain how to solve problem of “The type or namespace name 'CrystalDecisions' could not be found (are you missing a using directive or an assembly reference?” in visual studio 2010 while using crystal reports in windows application in c#, vb.net.

Description:
  
In previous articles I explained lot of articles related to solve errors  in windows application, asp.net, c#,vb.net and jQuery. Now I will explain how to solve problem of “The type or namespace name 'CrystalDecisions' could not be found (are you missing a using directive or an assembly reference?” in visual studio 2010 while using crystal reports in windows application in c#, vb.net.

Actually this problem occurs because of pointing our application to .NET Framework 4 Client Profile like as shown below to check this Right Click on your Application à Go to Properties à Select Application Tab

To fix this problem we need to change Target Framework version from .NET Framework 4 Client Profile to .NET Framework4

Once we change our Target Framework version to .NET Framework4 build the application and check it will fix the error.

I hope it helps you to solve your problem…. Happy Coding…….

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