Cannot upgrade from 8203 to 8212

Cannot upgrade from 8203 to 8212

Dear Expert

I'm trying to follow the migration sequence. My current version is 8203, I use the following file to upgrade to 8212, but it doesn't work:

"ManageEngine_ServiceDesk_Plus_8_2_0_SP-0_12_0.ppm"

It gives me this error:

"The file that you have specified is not compatible with this product"

What should I do ?

Best Regards

                  New to ADSelfService Plus?