Advantage Error Guide
Problem: Advantage has detected that the index was not built with an Advantage-compatible format. This problem can occur if the original index was built with the CA-Clipper 5.3 DBFCDX RDD, which does not create FoxPro-compatible indexes.
Solution: Rebuild the index with Advantage. For example, open the table with Advantage Data Architect and click the re-index button, or choose Re-Index from the Table menu.
If you get this error when using the Advantage proprietary table format (.ADT/.ADI), report the error to Advnatage Technical Support.