Dear FSL users

Hi

As I load "nii.gz" or "nii" images to FEAT(doing a 1th level analysis) I have encountered the following errors:

prestat

/usr/local/fsl/bin/fslmaths prefiltered_func_data_smooth -mul 0.959388000439 prefiltered_func_data_intnorm
** ERROR (nifti_image_read): failed to find header file for 'prefiltered_func_data_smooth'
** ERROR: nifti_image_open(prefiltered_func_data_smooth): bad header info
Error: failed to open file prefiltered_func_data_smooth
Cannot open volume prefiltered_func_data_smooth for reading!

Poststat

usr/local/fsl/bin/contrast_mgr -f design.fts stats design.con
** ERROR (nifti_image_read): failed to find header file for 'stats/sigmasquareds'
** ERROR: nifti_image_open(stats/sigmasquareds): bad header info
Error: failed to open file stats/sigmasquareds
ERROR: Could not open image stats/sigmasquareds
Image Exception : #22 :: Failed to read volume stats/sigmasquareds


An exception has been thrown
Failed to read volume stats/sigmasquaredsTrace: read_volume4DROI; ContrastMgr::Load; ContrastMgr::run.

I tried loading hdr/img version of that image which solves the errors above but prevent FSL from running the registeration part!

could you please tell me how to overcome the errors?

Thanks in advance.

Best Regards,

Mahsa