DMRIPREP - fieldmap-less distortion correction

Dear all,

I am writing to seek your expertise and advices on fieldmap-less distortion correction in DMRIPREP.

I executed the following commandline.
“singularity run --cleanenv -B /home/BIDS_output:/work -B /home/DMRIPREP_output:/output -B /home:/main /home/dmriprep-0.2.2.simg /work /output participant --participant_label sub-2475376 --fs-license-file /main/license.txt --fs-no-reconall --use-syn-sdc -skip-bids-validation -w /main/WORK”

It seems no processing in the distortion correction as shown in the report.html shows

No errors to report!”

Average b=0 that serves for reference in early preprocessing steps.”

Then no more steps and no dwi folder is generated.

May i know how to make it successfully runs.

In addition, there is another issue related to DMRIPREP. The following remark is shown in the log throughout the whole processing.

“200608-08:24:28,893 nipype.utils WARNING:
Could not check for version updates:
Connection to server could not be made”

Would it affect the products? How to fix it?

Thank you very much.
I look forward to your reply.

Best regards,

Did you ever figure this out? Thanks!