Crystal Report - How to fix error Could not load file or assembly

How to fix error:
Could not load file or assembly 'file:///C:\Program Files (x86)\SAP BusinessObjects\Crystal Reports for .NET Framework 4.0\Common\SAP BusinessObjects Enterprise XI 4.0\win64_x64\dotnet1\crdb_adoplus.dll' or one of its dependencies. The system cannot find the file specified.

In this tutorial we are going to do in Manual mode:
So, Let go into app.config file:
 

In app.config file
    <startup><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>

Replace with

    <startup useLegacyV2RuntimeActivationPolicy="true"><supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>

This may help you. Thanks