This statement refers to an index that does not exist. Review the spelling of the index name; if it is as you intended, and you are sure it should exist, make sure you are using the right database.
In an ANSI-compliant database, an index that you do not own must be qualified with its owner's name. See the discussion of error -316 for a way to check the names and owners of all indexes.
-319 Index does not exist in ISAM file.
This statement refers to an index that does not exist. (The reference to an ISAM file is not relevant; ignore it.) Review the spelling of the index name; if it is as you intended, and you are sure it should exist, make sure you are using the right database.
In an ANSI-compliant database, an index that you do not own must be qualified with its owner's name. See the discussion of error -316 for a way to check the names and owners of all indexes.