ASP.NET Runtime TNS could not resolve connect identifier specified

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ASP.NET

Oracle

Hi,

i wonder if someone can point me in the right direction.

i have windows 7 64 bit installed. i installed oracle 10g 32 bit.
in my visual studio 2008 app. i can test the oracle query everything but when i build the app to test i get an error. tns could not resolve connect identifier specified which i dont quite understand as everything i can test but runtime it gives error.
i have checked and tested tnsnames and it works correctly?

any help would be appreciated.

thnak you
Kallie