Q:

Crystal Reports are not working in Visual Studio 2010

When i execute crystal report it gives an error
Could not load file or assembly 'crdb_adoplus, Version=9.1.5000.0, Culture=neutral, PublicKeyToken=692fbea5521e1304' or one of its dependencies. Strong name validation failed. (Exception from HRESULT: 0x8013141A)

A:

Place this code in your app.config
<startup useLegacyV2RuntimeActivationPolicy="true">
    <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.2"/>
</startup>

If it would not work then download Crystal Report Runtime from this link http://downloads.businessobjects.com/akdlm/crnetruntime/clickonce/CRRuntime_32bit_13_0_1.msi
If again Crystal Report create some problem then right click on your project, open Properties, open Debug tab and check option Enable Unmanaged code debugging.

A:

If you are running .Net 4 in VS2010, then you may need to add the following to your .config file (configuration section):
<startup useLegacyV2RuntimeActivationPolicy="true">
  <supportedRuntime version="v4.0" sku=".NETFramework,Version=v4.0"/>
</startup>

If this doesn't work, then you need to upgrade to Crystal Report for VS2010 from this link.

