If you're getting this message it means you're trying to open it in an older version of Reader (or Acrobat), which is not going to work since Flash Player has been discontinued and many portfolios used that technology, unfortunately.
If you're getting this message it means you're trying to open it in an older version of Reader (or Acrobat), which is not going to work since Flash Player has been discontinued and many portfolios used that technology, unfortunately.