Connecting to Oracle from ER/Studio getting error regarding oci.dll/ociw32.dll

I'm trying to connect ER/Studio, ver. 17.0.0, and getting an error saying Can not load OCI, please verify that oci.dll or ociw32.dll exists in your path.

I do have those dll's and added that folder to my path, but I'm still getting the error.  Any thoughts as to what the issue could be?