database connection error when running a deployed application

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Mar 19, 2008
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Hi Friends,
I am supporting a Windows Application which is developed in VB.Net using Crystal reports XI, NetAdvantage Infragistcs, Oraoledb as .Net data provider to connect Oracle 10g DB.

My Application DB has been upgraded from 9i to 10g. When I try to test the application it was working fine. recently i found that some crystal report dlls are missing. so i try to repackage the application by adding the missing dlls. but when i run the deployed application I am getting the following error : ora-12154 : TNS : Could not resolve the connect identifier specified
I checked my TNSNAMES.ora file and ODBC configuration, every thing was fine and I can run the old version of the application without any error with the same settings and tnsnames.ora file.

Please help me to come out of this Trap :confused:
 

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