Error in rule stitch

[ylzou867]

professor，
Thank you very much for the excellent tools you provided.
I encountered some problems when running my own dataset. Before running my own data, I had successfully run the test data.
here is the error message:

Error in rule stitch:
jobid: 1
input: datasmall/output/udance/1/astral_output.incremental.nwk.bl, datasmall/output/udance/1/astral_output.updates.nwk.bl, datasmall/output/udance/0/astral_output.incremental.nwk.bl, datasmall/output/udance/0/astral_output.updates.nwk.bl
output: datasmall/output/udance.incremental.nwk, datasmall/output/udance.updates.nwk
shell:

       (
        if [[ "True" == "False" ]] ; then
            python run_udance.py stitch -o datasmall/output/udance
        else
            python run_udance.py stitch -o datasmall/output/udance -b
        fi
        cp datasmall/output/udance/udance.*.nwk datasmall/output
       ) >> /home/zyl/software/uDance/datasmall/udance.log 2>&1
    
    (one of the commands exited with non-zero exit code; note that snakemake uses bash strict mode!)

Shutting down, this might take some time.
Exiting because a job execution failed. Look above for error message

I checked the four files required by the input file. They really exist and have content. I do not understand how this error is caused.And strangly, the same data set did not report errors in the pre-analysis. I did some data filtering steps and then re-conducted the udance analysis, which caused the above errors. How should I solve this problem?

best wishes！