microsoft.ACE.OLEDB.12.0 provider is not registered on the local machine?

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I have been having trouble establishing a connection and finally narrowed down the problem to the error in the title. Every answer I have found so far has been exactly the same, they all say to change the active solution platform to x86 and to install Microsoft Access Database Engine 2007 x86 version, but I already have it installed and Visual Studio 2015 defaulted to x86, so neither of these is the answer (and yes, I tried to reinstall the database engine). Does anybody have a better suggestion?

Posted 7-Nov-15 16:34pm

KitsunePhoenix

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Dave Kreskowiak · Accepted Answer · 2015-11-07T17:19:00

Solution 1

There are 3 possibilities. Either your code is running as 64-bit (compiled to target AnyCPU), your connection string is wrong, or you don't have the ACE engine installed to match the architecture target of your code.

Posted 7-Nov-15 17:19pm

Dave Kreskowiak

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KitsunePhoenix 8-Nov-15 6:19am

okay this needs to be said for anyone else who can't figure out why this wasn't working. I followed the usual instructions to change the active solution platform, and there it said I was on x86. However, I went to Project ---> [Insert Project Name] Properties ---> Compile and even though the active platform was x86, the Target CPU was set to x64. Changing that to x86 fixed my problem.