Hi Team,
We have a Windows Application written in C#.NET using WPF which uses Crystal Reports for various steps for reporting data.
At one of the buttons which refreshes the Report with new data in one of the tabs, we are getting a Null Reference Exception as shown:-
This issue doesn't appear in the application deployed on our old Windows Server (and the application code is exactly the same).
The Old Windows Server details are as follows:-
Windows Version & other details as seen from My Computer:-
We have SAP Crystal Reports Runtime Engine installed on old machine as seen from Control Panel:-
However, on the New Windows Server, when I Repair the Runtime Engine from Control Panel, we are getting good results for some hits and for others the same error again intermittently. The new Windows Server details are as follows:-
We have both 32 and 64 bit installed and our IIS settings supports 32 bit apps as well.
So, since we have sorted out the issue to the installer files, it would be really helpful if you could provide us the details about what Runtime engine to use or what else needs to be changed.
Please let me know what other details you require from our end.
Also, I'm attaching the stack trace as a text file in this post.
Thanks!