IndentationError in file D:\R\plots\StainedGlass\workflow\Snakefile, line 51:

[danli349]

Hello:

How should I solve this problem?

snakemake -s ./StainedGlass/workflow/Snakefile --configfile=./StainedGlass/config/config.yaml --config sample=Arabidopsis fasta=./Col-CEN_v1.2.fasta --cores 24 make_figures -p

IndentationError in file D:\R\plots\StainedGlass\workflow\Snakefile, line 51:
expected an indented block after 'if' statement on line 51:
        S = config.pop("mm_s", 100)

Thanks a lot