Python gribapi function not yet implemented

Question

I'm using GRIB_API to parse my grib2 files. I tried Iterator.py but when I run my python script I got this error :

GRIB_API ERROR   :  jpeg support not enabled. Please rerun configure with the --with-jasper or --with-openjpeg option.
GRIB_API ERROR   :  unable to get codedValues as double array (Function not yet implemented)
GRIB_API ERROR   :  unable to get values as double array (Function not yet implemented)
Traceback (most recent call last):
  File "iterator.py", line 43, in main
    example()
  File "iterator.py", line 16, in example
    iterid = grib_iterator_new(gid,0)
  File "/program/gribapi.py", line 70, in modified
    return _func_(**kw)
  File "/program/gribapi.py", line 495, in grib_iterator_new
    GRIB_CHECK(err)
  File "/program/gribapi.py", line 70, in modified
    return _func_(**kw)
  File "/program/gribapi.py", line 143, in GRIB_CHECK
    raise GribInternalError(errid)
GribInternalError: Function not yet implemented

How can I fix this error ?