OraOLEDB.Oracle provider is not registered on the local machine

Question

I just migrated from XP to Win 7. I am guessing this error has to do with switching operating systems. I wrote a .net application that basically massages a large amount of d

Answer 1

It only worked for me after I changed the 'Platform target' to 'x64' (considering I'm using Oracle 12c 64 bits)

To do that, I did:

1. Right click on the project name (at the Solution Explorer panel locate, in general, at the left)

2. Clicked on 'Build' (in the new opened window)

3. Changed the 'Platform target' from 'Any CPU' to 'x64'

That solved the problem.