Snakemake errors

[haochen614]

I used your excellent tool for analyzing uORF for arabidopsis riboseq data. I meet a problem in executing "snakemake --use-conda -s uORF-Tools/Snakefile --configfile uORF-Tools/config.yaml --directory ${PWD} -j 20 --latency-wait 60:" the command.
I encounter the

Error in rule annotationBigBed:
jobid: 22
output: tracks/annotation.bb
conda-env: /Users/josealonso/.snakemake/conda/5b461e41

I do not know how to solve it.