Cannot convert between requested character sets '%1' and '%2'

Error constant SQLE_FAILED_TO_START_CONVERTER_2_CHARSETS
ODBC 2 State ERROR
ODBC 3 State ERROR
Parameter 1 The name of the first requested character set encoding.
Parameter 2 The name of the second requested character set encoding.
Severity 16
SQLCODE –891
SQLSTATE WC008
Sybase error code 13592
Probable cause

The server is unable to convert between the two specified character sets. This could happen when the dbicu and dbicudt DLLs are not installed.