.NET - error while loading crystal report: The database DLL 'crdb_query.dll' could not be loaded

Install right version:

https://wiki.scn.sap.com/wiki/display/BOBJ/Crystal+Reports%2C+Developer+for+Visual+Studio+Downloads

http://downloads.businessobjects.com/akdlm/crnetruntime/clickonce/CRRuntime_32bit_13_0_24.msi

Replace the reference in VS to: C:\WINDOWS\assembly\GAC\CrystalDecisions.Enterprise.Framework\12.0.1100.0__692fbea5521e1304

instead of version 10.