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This is for anyone who receive this message, probably trying to connect XESame to a csv/database for the first time
I got this error and got mad at it. So I post the solution I found.
When talking about an architecture missmatch it is referring to the 32/64 bits architecture. You must check your database and your XESame versions are both 32/64 bits, and that the ODBC driver you are using is, too. All 32 or all 64 bits.
In my case I was trying to use the example csv from http://www.processmining.org/xesame/examples. My Windows was x64, so I used a x64 bits driver. However I think my XESaame version was x32. I solved this by unistalling ProM and downloading the most recent version of 64 bits.
Hope this helps someone
Eager to give something to the community.
Carlos De Las Heras Peña