keyword version is deprecated

[yates13]

Once I go into the chips directory and run the snakemake command I get the following error, /scratch/Scel_ATACseq/Project/CHIPS/chips.snakefile:156: SyntaxWarning: invalid escape sequence '.'
#NOTE: Template class allows for _ in the variable names, we want to DISALLOW
SyntaxError in file /scratch/Scel_ATACseq/Project/CHIPS/./modules/trim_adapter.snakefile, line 73:
Keyword version is deprecated. Use conda or container directive instead (see docs). (trim_adapter.snakefile, line 73).
I believe I have properly edited the config, ref, and metasheet to my samples. i am in the CHIPS environment when running this so I was coping someone could help me trouble shoot.