Crystal Report in .NET Framework 4.0

c# crystal-reports crystal-reports-2010
Donotalo picture Donotalo · Aug 30, 2012 · Viewed 22.8k times · Source

We've a WPF application written in .NET 3.5 using Visual Studio 2010. The solution consists of 8 projects - all compiled in .NET 3.5. The application uses Crystal Report. Target OS is Windows 7.

Recently, the startup project is compiled in .NET 4.0 due to some 3rd party DLL dependency - those DLLs require .NET 4.0. After this change and rebuilding the solution, Crystal Report is throwing exception.

The problem occurs at the constructor of ReportClass.

Exception's message:

The type initializer for 'CrystalDecisions.CrystalReports.Engine.ReportDocument' threw an exception.

InnerException's message:

"Retrieving the COM class factory for component with CLSID {4DB2E2BB-78E6-4AEA-BEFB-FDAAB610FD1B} failed due to the following error: 80040154 Class not registered (Exception from HRESULT: 0x80040154 (REGDB_E_CLASSNOTREG))."

I haven't worked in Crystal Report before. What could be the cause of this problem?

Please note that this problem doesn't occur when compiled as .NET 3.5. Crystal Report is used in the startup project.

Answer

a.boussema picture a.boussema · Mar 18, 2013

It is likely to be X86/x64 problem.

try to compile your app to target 86 platform.

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