Unable to start specified database: '%1' is not a database

Error constant SQLE_FILE_NOT_DB
ODBC 2 State 08001
ODBC 3 State 08001
Parameter 1 The name of the database file.
Severity 11
SQLCODE –1004
SQLSTATE 08W85
Sybase error code 840
Probable cause

The specified file is not a valid database file.