[racket] can't run drracket in xubuntu 12.04

From: rrandom (emanonhere at gmail.com)
Date: Sun Feb 19 10:44:21 EST 2012

i can't run drracket in xubuntu 12.04.
when i typed drracket in terminal,this message showed:

rrandom at rrandom-ThinkPad-Edge:~$ drracket
ffi-lib: couldn't open "libjpeg.so.62" (libjpeg.so.62: cannot open
shared object file: No such file or directory)

=== context ===
/usr/share/racket/collects/racket/draw/unsafe/jpeg.rkt: [running body]
/usr/share/racket/collects/racket/draw/private/bitmap.rkt: [traversing
imports]
/usr/share/racket/collects/racket/draw/private/dc.rkt: [traversing imports]
/usr/share/racket/collects/racket/draw/private/svg-dc.rkt: [traversing
imports]
/usr/share/racket/collects/racket/draw.rkt: [traversing imports]
/usr/share/racket/collects/mred/private/kernel.rkt: [traversing imports]
/usr/share/racket/collects/mred/private/const.rkt: [traversing imports]
/usr/share/racket/collects/mred/private/check.rkt: [traversing imports]
/usr/share/racket/collects/mred/private/mred.rkt: [traversing imports]
/usr/share/racket/collects/mred/mred.rkt: [traversing imports]
/usr/share/racket/collects/mred/main.rkt: [traversing imports]
/usr/share/racket/collects/racket/gui/base.rkt: [traversing imports]
/usr/share/racket/collects/drracket/drracket.rkt: [traversing imports]


can anybody help me?



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