# Installation problem with rsruby **URL:** \ **Category:** Ruby\ **Created:** [July 15, 2007, 9:48pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495 "2007-07-15T21:48:18Z")\ **Posts on this page:** 8\ **Page:** 1
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 15, 2007, 9:48pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/1 "2007-07-15T21:48:18Z")
Dear all, I am having problems installing rsruby, the bindings for the R statistical language. I am on an OpenSuSE 10.2, 64 bit system. It looked at first that everything in the installation went smoothly, ie the installation of R itself from binaries, and the installation of rsruby (I tried both the gems and the source code, successively), following the instructions on sciruby [http://sciruby.codeforpeople.com/sr.cgi/RubyWithRlang](http://sciruby.codeforpeople.com/sr.cgi/RubyWithRlang) . But when I try to run some code, as in the example provided on that page, I get: /usr/local/lib/ruby/site\_ruby/1.8/x86\_64-linux/rsruby.so: libRblas.so: cannot open shared object file: No such file or directory - /usr/local/lib/ruby/site\_ruby/1.8/x86\_64-linux/rsruby.so (LoadError) from /usr/local/lib/ruby/site\_ruby/1.8/rsruby.rb:2 from r001.rb:2:in `require’ from r001.rb:2 ‘ls’ tells me that the file is there… I have tried appending the path, setting symbolic links, no result. What’s going wrong? Why don’t I see it? Thank you for your help! Best regards, Axel . went smoothly, i.e., installation of binary packages of R, then ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 15, 2007, 10:00pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/2 "2007-07-15T22:00:18Z")
Axel E. wrote: > ‘ls’ tells me that the file is there… > I have tried appending the path, setting symbolic links, > no result. > > What’s going wrong? Why don’t I see it? I hate this message. It’s very confusing. The loader is complaining that it has loaded rsruby.so, but rsruby.so needs libRblas.so and the loader can’t find libRblas.so. Probably you have installed libRblas.so in /usr/local/lib. Make sure you have /usr/local/lib (or whatever directory libRblas.so is in) in your LD\_LIBRARY\_PATH. Check out man ld.so(8) for more information about LD\_LIBRARY\_PATH. ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 15, 2007, 10:37pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/3 "2007-07-15T22:37:20Z")
Dear Tim, > ‘ls’ tells me that the file is there… > have /usr/local/lib (or whatever directory libRblas.so is in) in your > LD\_LIBRARY\_PATH. Check out man ld.so(8) for more information about > LD\_LIBRARY\_PATH. Thank you for your reply. I have libRblas.so installed in /usr/lib64/R/lib and tried setting LD\_LIBRARY\_PATH to this directory and then also appended it to /usr/local/lib, just in case … but this didn’t work … I am still getting the same error. Also, I came across some warning against setting LD\_LIBRARY\_PATH at all: [http://linuxmafia.com/faq/Admin/ld-lib-path.html](http://linuxmafia.com/faq/Admin/ld-lib-path.html) But I’d be prepared to do many things to get R and Ruby to work together ;-( What else could I do ? Best regards, Axel ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 15, 2007, 10:47pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/4 "2007-07-15T22:47:21Z")
Axel E. wrote: > Thank you for your reply. I have libRblas.so installed in > /usr/lib64/R/lib and tried setting > LD\_LIBRARY\_PATH to this directory and then also appended it to /usr/local/lib, just in > case … but this didn’t work … I am still getting the same error. Try using ldd to see where rsruby.so thinks libRblas.so is: ldd rsruby.so > Also, I came across some warning against setting LD\_LIBRARY\_PATH at all: > > [Should I set LD\_LIBRARY\_PATH?](http://linuxmafia.com/faq/Admin/ld-lib-path.html) What can I say? I’ve gotten different advice. I guess you get to make your own choice. ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 16, 2007, 11:30pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/5 "2007-07-16T23:30:20Z")
Axel E. wrote: > How can I make a dynamic dependency between libRblas.so and rsruby.so ? > I couldn’t find any documentation on flags at the time of installation. I don’t know. Probably you’re going to need to get in touch with the rsruby developers. ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 16, 2007, 4:16pm UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/6 "2007-07-16T16:16:26Z")
Dear Tim, thanks again for replying. This is what i get: dhcppc1:/usr/local/lib/ruby/site\_ruby/1.8/x86\_64-linux # ldd -d rsruby.so undefined symbol: rb\_eRuntimeError (./rsruby.so) undefined symbol: rb\_eNoMethodError (./rsruby.so) undefined symbol: rb\_eArgError (./rsruby.so) undefined symbol: rb\_cObject (./rsruby.so) libR.so =\> /usr/lib64/R/lib/libR.so (0x00002b1d9fbc7000) libdl.so.2 =\> /lib64/libdl.so.2 (0x00002b1da017f000) libcrypt.so.1 =\> /lib64/libcrypt.so.1 (0x00002b1da0383000) libm.so.6 =\> /lib64/libm.so.6 (0x00002b1da05bd000) libc.so.6 =\> /lib64/libc.so.6 (0x00002b1da0813000) \*\*\* libRblas.so =\> /usr/lib64/R/lib/libRblas.so (0x00002b1da0b55000) libgfortran.so.1 =\> /usr/lib64/libgfortran.so.1 (0x00002b1da0da8000) libgcc\_s.so.1 =\> /lib64/libgcc\_s.so.1 (0x00002b1da103f000) libreadline.so.5 =\> /lib64/libreadline.so.5 (0x00002b1da124d000) /lib64/ld-linux-x86-64.so.2 (0x0000555555554000) libncurses.so.5 =\> /lib64/libncurses.so.5 (0x00002b1da148c000) axel@dhcppc1:/usr/lib64/R/lib\> ldd -d libRblas.so libc.so.6 =\> /lib64/libc.so.6 (0x00002b0b54305000) /lib64/ld-linux-x86-64.so.2 (0x0000555555554000) at first, libRblas.so was not found in the line marked with (\*\*\*), but I managed to get it found by passing it as an option in the installation process. How can I make a dynamic dependency between libRblas.so and rsruby.so ? I couldn’t find any documentation on flags at the time of installation. Thanks for your help again. Best regards, Axel ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 17, 2007, 3:39am UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/7 "2007-07-17T03:39:41Z")
Alex G. wrote: > I just installed it from the Gem repository on Gentoo Linux with no problems, once I set R\_HOME=/usr/lib/R. Gentoo builds all three of (in /usr/lib/R/lib) libRblas.so, libRlapack.so and libR.so, and everything worked. I don’t remember what Ubuntu/Debian do, but quite a bit of CRAN is in the Debian repositories thanks to Dirk Eddelbuettel. I usually build R from source on everything but Gentoo (where it’s built from source by default) and Windows (where building R from source requires a finicky and demanding tool set and patience I don’t possess) anyhow, so I know where everything is and can specify that everything I need gets built. ---
**Author:** ![Axel\_E](https://www.ruby-forum.com/letter_avatar_proxy/v4/letter/a/7c8e57/32.png) [@Axel\_E](https://www.ruby-forum.com/u/Axel_E)\ **Post date:** [July 17, 2007, 3:17am UTC](https://www.ruby-forum.com/t/installation-problem-with-rsruby/109495/8 "2007-07-17T03:17:39Z")
On 17 Jul 2007, at 06:29, Tim H. wrote: > Axel E. wrote: > > > How can I make a dynamic dependency between libRblas.so and > > rsruby.so ? > > I couldn’t find any documentation on flags at the time of > > installation. > > I don’t know. Probably you’re going to need to get in touch with > the rsruby developers. Hi Axel, I’m the developer of RSRuby, sorry to see you’ve been having trouble. I don’t seem to have libRblas.so on my machine (Ubuntu), so I’m not sure what is causing the issue you’re having. What version of R (and RSRuby) did you install? Feel free to email me off-list if you like - though I am away from work for the next week so replies may be slow. Alex G. Bioinformatics Center Kyoto University