cannot open shared object file: No such file or directory

Question

I met the share library not found on the head node of a cluster with torch. I have built the library as well as specify the correct path of the library while compiling my own program "absurdity" by g++. So it looks strange to me. Any idea? Thanks and regards!

[tim@user1 release]$ make  
...  
...  
g++ -pipe -W -Wall -fopenmp -ggdb3 -O2    -I/home/tim/program_files/ICMCluster/ann_1.1.1/include -I/home/tim/program_files/ICMCluster/libsvm-2.89  -I/home/tim/program_files/ICMCluster/svm_light  -o absurdity  xxxxxx.o  -L/home/tim/program_files/ICMCluster/ann_1.1.1/release/lib -L/home/tim/program_files/ICMCluster/libsvm-2.89/release/lib -L/home/tim/program_files/ICMCluster/svm_light/release/lib -lm -ljpeg -lpng -lz -lANN -lpthread -lsvm -lsvmlight  

[tim@user1 release]$ ./absurdity  
./absurdity: error while loading shared libraries: libsvmlight.so: cannot open shared object file: No such file or directory  

[tim@user1 release]$ ls /home/tim/program_files/ICMCluster/svm_light/release/lib/libsvmlight.so -l  
-rwxr-xr-x 1 tim Brown 121407 Jan 31 12:14 /home/tim/program_files/ICMCluster/svm_light/release/lib/libsvmlight.so 

[tim@user1 release]$ LD_LIBRARY_PATH= /home/tim/program_files/ICMCluster/svm_light/release/lib:$LD_LIBRARY_PAT    
[tim@user1 release]$ export LD_LIBRARY_PATH 

[tim@user1 release]$ ./absurdity  
./absurdity: error while loading shared libraries: libsvmlight.so: cannot open shared object file: No such file or directory  

[tim@user1 release]$ ls  /home/tim/program_files/ICMCluster/svm_light/release/lib  
libsvmlight.a  libsvmlight.so

score 100 · Answer 1 · edited May 23 '17 at 12:17

100

Copied from my answer here: https://stackoverflow.com/a/9368199/485088

Run ldconfig as root to update the cache - if that still doesn't help, you need to add the path to the file ld.so.conf (just type it in on its own line) or better yet, add the entry to a new file (easier to delete) in directory ld.so.conf.d.

edited May 23 '17 at 12:17

Community

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answered Feb 20 '12 at 20:51

Tim Čas

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score 82 · Accepted Answer · edited Jan 29 '17 at 13:23

82

Your LD_LIBRARY_PATH doesn't include the path to libsvmlight.so.

$ export LD_LIBRARY_PATH=/home/tim/program_files/ICMCluster/svm_light/release/lib:$LD_LIBRARY_PATH

edited Jan 29 '17 at 13:23

rkosegi

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answered Jan 31 '10 at 17:41

Maurits Rijk

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Thanks, Maurits. But It is strange that it is not working. Sorry, I forgot to added that to the post but now I have done it. – Tim Jan 31 '10 at 17:46
Okay, it is working now. NOt sure why. Perhaps filesystem of the cluster has some problem. – Tim Jan 31 '10 at 17:56
Great that was the issue for me. – Saher Ahwal Mar 04 '14 at 20:01

score 21 · Answer 3 · answered Feb 04 '17 at 23:55

sudo ldconfig

ldconfig creates the necessary links and cache to the most recent shared libraries found in the directories specified on the command line, in the file /etc/ld.so.conf, and in the trusted directories (/lib and /usr/lib).

Generally package manager takes care of this while installing the new library, but not always (specially when you install library with cmake).

And if the output of this is empty

$ echo $LD_LIBRARY_PATH

Please set the default path

$ LD_LIBRARY_PATH=/usr/local/lib

score 4 · Answer 4 · answered Oct 28 '15 at 17:37

4

When working on a supercomputer, I received this error when I ran:

module load python/3.4.0
screen
python

To resolve the error, I simply needed to reload the module in the screen terminal:

module load python/3.4.0
python

answered Oct 28 '15 at 17:37

duhaime

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cannot open shared object file: No such file or directory

4 Answers4

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