Could not create a text index without external prefilter library on column "%1"

Error constant SQLE_TEXT_INDEX_NO_PREFILTER
ODBC 2 state ERROR
ODBC 3 state ERROR
Parameter 1 The name of the column for which external prefilter library is required.
Severity 16
SQLCODE -1492
SQLSTATE WT030
Sybase error code 13198
 Probable cause
 More information
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