<html> <head> <meta content="text/html; charset=ISO-8859-1" http-equiv="Content-Type"> </head> <body bgcolor="#FFFFFF" text="#000000"> 于 2012年02月20日 00:25, Bill Markmann 写道: <blockquote cite="mid:CAKfsddA6bzydz8pLSPitPDZR-J_=KQqZz3qMfQycGwkFn4T9qA@mail.gmail.com" type="cite">I haven't run into that with DrRacket under xubuntu, but two things to check: <div><br> </div> <div>- if you do a 'sudo apt-get install -s libjpeg'... what is the response?</div> <div>- cd into /usr/lib and do 'ls -l *.jpeg*' and see what you get; mine (under xubuntu) looks like:</div> <div><br> </div> <div> <div>bill@cheese:/usr/lib$ ls -l *jpeg*</div> <div>-rw-r--r-- 1 root root 223014 2010-05-09 12:24 libjpeg.a</div> <div>-rw-r--r-- 1 root root    941 2010-05-09 12:24 <a moz-do-not-send="true" href="http://libjpeg.la">libjpeg.la</a></div> <div>lrwxrwxrwx 1 root root     17 2011-11-17 13:07 libjpeg.so -> libjpeg.so.62.0.0</div> <div>lrwxrwxrwx 1 root root     17 2011-03-11 07:23 libjpeg.so.62 -> libjpeg.so.62.0.0</div> <div>-rw-r--r-- 1 root root 146032 2010-05-09 12:24 libjpeg.so.62.0.0</div> <div>lrwxrwxrwx 1 root root     16 2011-04-04 22:13 libjpeg.so.8 -> libjpeg.so.8.0.2</div> <div>-rw-r--r-- 1 root root 231640 2010-05-20 19:52 libjpeg.so.8.0.2</div> <div>-rw-r--r-- 1 root root 132632 2009-04-30 02:24 <a moz-do-not-send="true" href="http://libopenjpeg-2.1.3.0.so">libopenjpeg-2.1.3.0.so</a></div> <div>lrwxrwxrwx 1 root root     22 2011-04-09 11:57 libopenjpeg.so.2 -> <a moz-do-not-send="true" href="http://libopenjpeg-2.1.3.0.so">libopenjpeg-2.1.3.0.so</a></div> <div><br> </div> <div>If you have libjpeg installed (check the first step), then it's very likely your symlinks under /usr/lib are screwy for some reason... if that's the case fixing without breaking other stuff is the trick (my guess is you'll just need to do 'sudo ln -s ./libjpeg.so.62.0.0 ./libjpeg.so.62' in that directory, but that's just a guess....  I've never fully understood the logic behind how library versioned / named-linked are supposed to work, but tinkering around will either lead you to success or an unusable system... :-) </div> <br> <div class="gmail_quote">On Sun, Feb 19, 2012 at 10:44 AM, rrandom <span dir="ltr"><<a moz-do-not-send="true" href="mailto:emanonhere@gmail.com">emanonhere@gmail.com</a>></span> wrote:<br> <blockquote class="gmail_quote" style="margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"> i can't run drracket in xubuntu 12.04.<br> when i typed drracket in terminal,this message showed:<br> <br> rrandom@rrandom-ThinkPad-Edge:~$ drracket<br> ffi-lib: couldn't open "libjpeg.so.62" (libjpeg.so.62: cannot open<br> shared object file: No such file or directory)<br> <br> === context ===<br> /usr/share/racket/collects/racket/draw/unsafe/jpeg.rkt: [running body]<br> /usr/share/racket/collects/racket/draw/private/bitmap.rkt: [traversing<br> imports]<br> /usr/share/racket/collects/racket/draw/private/dc.rkt: [traversing imports]<br> /usr/share/racket/collects/racket/draw/private/svg-dc.rkt: [traversing<br> imports]<br> /usr/share/racket/collects/racket/draw.rkt: [traversing imports]<br> /usr/share/racket/collects/mred/private/kernel.rkt: [traversing imports]<br> /usr/share/racket/collects/mred/private/const.rkt: [traversing imports]<br> /usr/share/racket/collects/mred/private/check.rkt: [traversing imports]<br> /usr/share/racket/collects/mred/private/mred.rkt: [traversing imports]<br> /usr/share/racket/collects/mred/mred.rkt: [traversing imports]<br> /usr/share/racket/collects/mred/main.rkt: [traversing imports]<br> /usr/share/racket/collects/racket/gui/base.rkt: [traversing imports]<br> /usr/share/racket/collects/drracket/drracket.rkt: [traversing imports]<br> <br> <br> can anybody help me?<br> <br> <br> ____________________<br>  Racket Users list:<br>  <a moz-do-not-send="true" href="http://lists.racket-lang.org/users" target="_blank">http://lists.racket-lang.org/users</a><br> </blockquote> </div> <br> </div> </blockquote> thank you.it's exact what you said.<br> </body> </html>