System.Data.OracleClient BadImageFormatException

Question

I have an application which was built in .Net 2.0 on 32-bit Windows platform. I am trying to run the same application code in v2.0 using VS2010 but on Windows 7 64-bit platform but I am not able to proceed further due to the following error:

Exception:

System.InvalidOperationException was caught

  Message=Attempt to load Oracle client libraries threw BadImageFormatException.  This problem will occur when running in 64 bit mode with the 32 bit Oracle client components installed.

Answer 1

Check if you have Oracle client installed for 64 bit and 32 bit platform

Answer 2

Try these:
1. Hosting the site on IIS 7 by setting ‘Enable 32-bit application’.
2. Set the platform for the project using Oracle Provider from ‘Any CPU’ to ‘x86’ in Visual Studio

Answer 3

Welcome to MSDN Forums.

Change "Target Platform" from "Any CPU" to "x86" in properties of the project which builds your application (.exe). Rebuild and try again.

Sincerely,

Yasser.

Answer 4

Saurabh and Yasser, thank you for your active participation in the MSDN forum!

 

Hi Ravi,
Welcome to the MSDN forum!

If you have any questions in the future programming, you are welcome to post again in the forum!

Have a nice day!
Yoyo.

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Yoyo Jiang[MSFT]
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