Hi Tudor,
Can you run mri_concat from the command line with the --debug option 
first. Send us the FULL command line and the full terminal output.
doug



On 12/18/2012 09:35 AM, Tudor Popescu wrote:
> Hello everyone,
>
> I tried doing the QDEC group analysis tutorial, however after doing 
> everything as instructed in the tutorial, when pressing Analyze I get 
> the error message:
>
> /Error in Analyze: command failed: mri_concat 
> /media/Dell/_FS/buckner_data/subjects/140/surf/lh.thickness.fwhm10.fsaverage.mgh
>  
> /media/Dell/_FS/buckner_data/subjects/049/surf/lh.thickness.fwhm10.fsaverage.mgh
>  
> (..)/
>
> ..even though those files are all accessible there! I pasted that same 
> mri_concat manually into the terminal, however no output is produced 
> at the command prompt, nor any files are created.
>
> In previous attempts, I used to also get this error
>
> /" .ERROR: QdecProject::VerifySubjects: Couldn't find subject '032' in 
> SUBJECTS_DIR "/
> /Syntax error: Bad fd number"/
>
> after following the sh/bash workaround from this 
> <https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2008-October/008618.html>previous
>  
> thread, I no longer get that error, however get stuck with the error 
> mentioned above.
>
> My SUBJECTS_DIR already contains a copy of the default subjects folder.
>
> Debug info below. Any help greatly appreciated!
> Tudor
>
> -------- freesurfer-Linux-centos4-stable-pub-v5.1.0 --------
> Setting up environment for FreeSurfer/FS-FAST (and FSL)
> FREESURFER_HOME   /home/virtualuser/freesurfer
> FSFAST_HOME       /home/virtualuser/freesurfer/fsfast
> FSF_OUTPUT_FORMAT nii.gz
> SUBJECTS_DIR      /media/Dell/_FS/buckner_data/subjects
> MNI_DIR           /home/virtualuser/freesurfer/mni
>
>
>
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-- 
Douglas N. Greve, Ph.D.
MGH-NMR Center
gr...@nmr.mgh.harvard.edu
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Fax: 617-726-7422

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