ORA-01461: can bind a LONG value only for insert into a LONG column

[Henry Lu]

I got the error:

ORA-01461: can bind a LONG value only for insert into a LONG column
When I do insert. But there is nothing to do with any LONG column in the 
table. And All values of columns inserted were less than the size in the 
table.

Is there any idea how to fix?

-Henry