Hello everyone,<br><br>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:<br><br><div style="margin-left:40px"><i>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 (..)</i><br>

</div><br>..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.<br><br>In previous attempts, I used to also get this error<br><br><div style="margin-left:40px"><i>&quot; .ERROR: QdecProject::VerifySubjects: Couldn&#39;t find subject &#39;032&#39; in SUBJECTS_DIR &quot;</i><br>

<i>Syntax error: Bad fd number&quot;</i><br></div><br>after following the sh/bash workaround from <a href="https://mail.nmr.mgh.harvard.edu/pipermail/freesurfer/2008-October/008618.html">this </a>previous thread, I no longer get that error, however get stuck with the error mentioned above.<br>

<br>My SUBJECTS_DIR already contains a copy of the default subjects folder.<br><br>Debug info below. Any help greatly appreciated!<br>Tudor<br><br>-------- freesurfer-Linux-centos4-stable-pub-v5.1.0 --------<br>Setting up environment for FreeSurfer/FS-FAST (and FSL)<br>

FREESURFER_HOME   /home/virtualuser/freesurfer<br>FSFAST_HOME       /home/virtualuser/freesurfer/fsfast<br>FSF_OUTPUT_FORMAT nii.gz<br>SUBJECTS_DIR      /media/Dell/_FS/buckner_data/subjects<br>MNI_DIR           /home/virtualuser/freesurfer/mni<br>

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