DPARSFA RealignParameter Error

I was wondering if someone could help with an issue I've encountered in pre-processing. I have successfully gotten through normalizing my subject files to CSF, white matter, and grey matter. However, after it completes this, I get the following error message: 

Error using DPARSFA_run>(parfor body) (line 2398)
Unable to read file '/deep/labs/uddin/work/Casey/Depression_NKI/Data_s_041/RealignParameter/s_041/': input cannot be a directory.
Error in DPARSFA_run (line 2369)
        parfor i=1:AutoDataProcessParameter.SubjectNum
Error in DPARSFA>pushbuttonRun_Callback (line 1663)
Error in gui_mainfcn (line 95)
Error in DPARSFA (line 30)
    gui_mainfcn(gui_State, varargin{:});
Error while evaluating uicontrol Callback. 
- I have the following files within the directory, but the program is not able to access them:
Does anyone know how to fix this?
-Casey Burrows

Hi Casey,

What's your setting? Do you have rp*.txt files under RealignParameter/SubXXX?

Thanks for your quick response! I realized that I had not selected the "Realign" option in DPARSF so it was not generating those text files. When I fixed this I no longer encountered an error. 

Thanks again for the timely response, and I hope this can help anyone with a similar issue.