当我尝试drracket在 Ubuntu 12.04上使用时，出现此错误：
ffi-lib: couldn't open "libjpeg.so.62" (libjpeg.so.62: cannot open shared object file: No such file or directory)
=== context ===
/usr/lib/racket/collects/racket/draw/unsafe/jpeg.rkt: [running body]
/usr/lib/racket/collects/racket/draw/private/bitmap.rkt: [traversing imports]
/usr/lib/racket/collects/racket/draw/private/dc.rkt: [traversing imports]
/usr/lib/racket/collects/racket/draw/private/svg-dc.rkt: [traversing imports]
/usr/lib/racket/collects/racket/draw.rkt: [traversing imports]
/usr/lib/racket/collects/mred/private/kernel.rkt: [traversing imports]
/usr/lib/racket/collects/mred/private/const.rkt: [traversing imports]
/usr/lib/racket/collects/mred/private/check.rkt: [traversing imports]
/usr/lib/racket/collects/mred/private/mred.rkt: [traversing imports]
/usr/lib/racket/collects/mred/mred.rkt: [traversing imports]
/usr/lib/racket/collects/mred/main.rkt: [traversing imports]
/usr/lib/racket/collects/racket/gui/base.rkt: [traversing imports]
/usr/lib/racket/collects/drracket/drracket.rkt: [traversing imports]
我该如何纠正这个错误？
12.04 ×1