I've been trying to Erase, Program, verify operation of a program
(COFF file) using On-Chip flash programmer of Code Composer studio.
While doing that the following error message pops up:

"Flash API Error #14: Unknown Error during Flash operation"

In this case, all the options "under flash programmer settings...."
are
checked. If the display diagnostics option is uncheked, then error
message does not  pop up and it seems the program is uploaded.  But if
the proram is run setting a break point the following message comes
out.

"The target will not be run as the breakpoint could not be moved to a
valid
line at .......c line 65. It has been disabled."
Looks like erasing, programming, and verification operation cannot be
done using
on-chip flash programmer.
Any help to overcome the above problem would be greatly appreciated.

Related information:

Board: eZdsp320F2808 (Rev B)
CCS :  V3.1
Flash API V3.02
 (Both CCS and Flash API are obtained from Spectrum Digital)