cannot open shared object file

[李紫阳]

Dear all,

I am trying to use the matlab wrapper in ubuntu14.04, but it gives error message like this:

Invalid MEX-file '/usr/local/MATLAB/R2014b/toolbox/gtsam/gtsam_wrapper.mexa64':
libgtsam.so.4: cannot open shared object file: No such file or directory

Error in gtsam.NonlinearFactorGraph (line 41)
        my_ptr = gtsam_wrapper(1046);

but I can find libgtsam.so.4 at /usr/local/lib/

[Chris Beall]

This is not a GTSAM bug, but a system configuration problem. You need to tell your system to look in /usr/local/lib. Some instructions (using ldconfig seems to be the preferred way):

http://askubuntu.com/questions/350068/where-does-ubuntu-look-for-shared-libraries

http://unix.stackexchange.com/questions/67781/use-shared-libraries-in-usr-local-lib