Module compilation error - stuck at "'"

[complexgenome]

Hi,

I've following code in nextflow process:

process snp_pileup {

conda '/data1/software/miniconda3/envs/MMRADAR_sanjeev'

        maxForks 3
        debug true
        errorStrategy 'retry'
    maxRetries 4
        label 'low_mem'
        publishDir path: "${params.outdir}/${sample_name}/snppileup/", mode: 'copy'

input:
        tuple val(sample_id_tumor),path(bqsrbam_tumor, stageAs: 'tumor_snppileup/*')
        tuple val(sample_id_normal),path(bqsrbam_normal, stageAs: 'normal_snppileup/*')

output:
tuple val(sample_name), path("${sample_name}_snppileupout.gz"), emit: snppileup_out

script:
sample_name=sample_id_normal.split('_N')[0]

"""

snp-pileup --min-base-quality 20 --min-map-quality 15 --min-read-counts 25\,0 --pseudo-snps 100 --gzip /data1/daphni2/azenta_files/dbsnp_146.hg38.vcf.gz "${sample_name}_snppileupout.gz" ${bqsrbam_normal} ${bqsrbam_tumor}

"""

}

When I run:
nextflow run main.nf -params-file input_params.json -resume

I get error as:

N E X T F L O W  ~  version 23.04.1
Launching `main.nf` [awesome_rutherford] DSL2 - revision: dcb6c8f307
ERROR ~ Module compilation error
- file : /data1/users/sanjeev/nextflow_pipeline/scripts_pipeline/crusher_scripts/upgraded_split_csv/./snp_pileup.nf
- cause: Unexpected character: '"' @ line 23, column 3.
   """
     ^

1 error


 -- Check script 'main.nf' at line: 35 or see '.nextflow.log' file for more details

The log file says:

Caused by: org.codehaus.groovy.control.MultipleCompilationErrorsException: startup failed:
Script_56f82145: 23: Unexpected character: '"' @ line 23, column 3.
"""
^

I cannot seem to resolve it. I have used the code several times and worked fine.
Please guide.

[complexgenome]

@bentsherman @mribeirodantas Can you please help?

[mribeirodantas]

I deleted the multiple taggings and messages. Please, don't do this anymore.

You should escape the \ after the 25 in your script block. \\, should do the work.

[complexgenome]

OK; thank you.