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I Have some more info.
In my case I created a project using Visual Studio 2000.net and Crystal Reports V8.5 with the crystal report veiwer tool on 2 forms.
I then upgraded to Visual Studio 2003.net and Crystal Reports V10
Some time later I revisited my project made some minor changes and rebuilt it. This seemed to work ok on my pc.
I then installed it onto another pc and stated the program. Everything seemed ok untill i got to one of the forms that had veiwer control on it. Then I recieved the above error
It appears that if you created a project using an older version of Visual Studio.net / crystal reports or one of it's tool and after updating the crystal reports.
From version 9.1.3300.0 or 9.1.5000.0 to 10.0.3300.0
You then building the project and installing the resulting program onto another 'clean' pc, you may get this error
System.IO.FileNotFoundException: File or assembly name CrystalDecisions.Windows.Forms, or one of its dependencies, was not found.
or somthing very similar.
To get around this you need to make sure your project referances the new verisons that you have upgraded to. Open your project and remove the form tools (like the crystal report viewer tool) from the forms and Toolbox. Then remove the Crystal report Referances in the Project Explorer.
CrystalDecisions.CrystalReports.Engine.
crystaldecisions.windows.forms
CrystalDecisions.ReportSource.
CrystalDecisions.Shared.
Now add the new updated tools (make sure they are the correct version) to the Toolbox and redraw them onto your forms in the designer. In doing this the new Crystal report referances should automatical appear in the Project Explorer.
That takes care of the project itself but you will also need to download the merge modules that matches your version of crystal reposts and include these in the setup package.
This is most important as the Client pc will not have the correct dlls. Do not assume that just because you have the new Crystal Reports installed that the merge modules will also be upgraded. They Don't
here is a usful link to the merge modules.
http://support.businessobjects.com/fix/merge_modules.asp
0 I have a similar error after upgrading from visual studio 2000.net to 2003.net.
I also upgraded crystal reports version 10 Developer.
You may also wish to take a look at this.
http://support.businessobjects.com/library/kbase/articles/c2013897.asp
Hawkmoth
0 For those interested:
http://msdn.microsoft.com/library/default.asp?url=/library/en-us/crystlmn/html/crcondeployingcrystalreportsinnetapplications.asp
Problem solved?? (we'll see)
-Ant