Hi, there, I am using the longitudinal processing module in VBM8 running on SPM12. Right after I ran the "VBM8 -->Process longitudinal data" step, I selected two data (pre and post) for one subject, then it was running OK until it got to this step with this error message: [I have tried data from different subjects, and running this on Linux & Windows platforms, and uploading 1 vs. multiple subject data at once etc, regardless what I've tried, I kept getting this same error message where the program got stuck and would not move further] I would appreciate any comments about the reason for getting this error and how to resolve this problem. Thanks a lot!! -------------------------- Done 'VBM8: Estimate & Write' Running 'VBM8 Realign: Estimate' Weighted realignment... Done 'VBM8 Realign: Estimate' Running 'Apply Deformations (Many images)' *Failed 'Apply Deformations (Many images)'* *Undefined function 'spm_load_float' for input arguments of type 'struct'.* In file "/home/spm12/toolbox/vbm8/cg_vbm8_defs.m" (v440), function "get_def" at line 49. In file "/home/spm12/toolbox/vbm8/cg_vbm8_defs.m" (v440), function "cg_vbm8_defs" at line 30. Running 'Move/Delete Files' Done 'Move/Delete Files' The following modules did not run: Failed: Apply Deformations (Many images) ------------------------------