This error appears if using the 'development' version of Freesurfer available within the MGH NMR Center. The problem was fixed this weekend, and you will need to re-'source' your Freesurfer environment.

Also, the 'stable' build is recommended for NMR Center users, unless there is a specific feature in 'dev' that needs testing. To use the 'stable' build within the NMR Center:

source /usr/local/freesurfer/nmr-std-env

Reminder: It is particularly important to use the 'stable' build if using Freesurfer to process subject data in a study, as the 'dev' build changes without notice quite often (as upcoming features are incorporated and tested within the NMR Center). The 'dev' build is not distributed publicly.

Nick

On Mon, 2006-08-14 at 13:27 -0400, Cameron Ellis wrote:

Hi, While attempting to preprocess a subjects data I am given an error message (pasted below) as the motion correction step is implemented does anyone have an idea of what the libvnl_algo.so file is and where it may be located? I am not sure why it cannot be loaded. Thanks in advance for the help!

Cameron

------- ************************** ----------- ------- Motion Correcting Run 006 ----------- ------- ************************** ----------- sess = SM2C2 Mon Aug 14 13:23:09 EDT 2006 mc-afni2 --i 006/f.bhdr --t 006/f.bhdr --frame 0 --o 006/fmc.bhdr --mcdat 006/fmc.mcdat /autofs/space/troy_001/users/FREESURFER/SM2C2_fsfast/func/SM2C2/bold mri_info --nframes --o /tmp/mriinfo.18814 006/f.bhdr mri_info: error while loading shared libraries: libvnl_algo.so: cannot open shared object file: No such file or directory ERROR: mc-sess failed _______________________________________________ Freesurfer mailing list Freesurfer@nmr.mgh.harvard.edu https://mail.nmr.mgh.harvard.edu/mailman/listinfo/freesurfer