我的脚本遇到了另一个奇怪的问题,想知道是否可以获得更多帮助。 您好,我正在尝试使用多种工具和以下脚本进行基因组组装:
/*
* Define the default parameters
*/
params.podsF = '/home/staukobong/pod5/'
pods_ch = Channel.fromPath(params.podsF, checkIfExists: true)
/*
* Basecalling PORE5 files using Dorado
*/
process BASECALL {
module 'dorado'
debug true
input:
path sample_id
output:
path 'sample_id.bam' , emit: bamfiles_complete
script:
"""
dorado basecaller /home/staukobong/[email protected] $sample_id > sample_id.bam
"""
}
/*
* Convert fastq files to bam files and concatenate the files
*/
process CONVERT {
debug true
input:
path sample_id
output:
path 'sample_id.fastq', emit: fastq_files
script:
"""
samtools bam2fq $sample_id > sample_id.fastq
"""
}
/*
* Check quality of sequencing reads using FASTQC
*/
process FASTQC1 {
module 'FastQC'
debug true
input:
path sample_id
output:
path 'sample_id_fastqc.html', emit: fastqc_files
script:
"""
fastqc $sample_id -t 4
"""
}
/*
* Trim fastq files after base calling using Nanofilt
*/
process TRIM {
module 'nanofilt'
debug true
input:
path sample_id
output:
path 'sample_id.trimmed.fastq', emit: trimmed_fastq
script:
"""
NanoFilt -l 200 -q 20 --headcrop 50 --tailcrop 6000 $sample_id > sample_id.trimmed.fastq
"""
}
/*
* Check quality of sequencing reads using FASTQC
*/
process FASTQC2 {
module 'FastQC'
debug true
input:
path sample_id2
output:
path 'sample_id2_fastqc.html', emit: fastqc_files2
script:
"""
fastqc $sample_id2 -t 4
"""
}
/*
* Assemble the reads using FLYE
*/
process ASSEMBLY {
module 'flye/2.9'
debug true
input:
path sample_id
output:
path '*', emit: Assembly_files
script:
"""
flye --nano-raw $sample_id -i 3 -t 4
"""
}
/*
* Mapping the reads using minimap2
*/
process MAPPINGS {
module 'minimap2'
debug true
input:
path sample_id
output:
path 'sample_id.sam', emit: Mapped_files
script:
"""
minimap2 -a -t 4 ${sample_id}.trimmed.fastq ${sample_id}.fasta > sample_id.sam
"""
}
/*
========================================================================================
Create default workflow
========================================================================================
*/
workflow {
BASECALL(pods_ch)
CONVERT(BASECALL.out.bamfiles_complete)
FASTQC1(CONVERT.out.fastq_files)
TRIM(CONVERT.out.fastq_files)
FASTQC2(TRIM.out.trimmed_fastq)
ASSEMBLY(TRIM.out.trimmed_fastq)
MAPPINGS(TRIM.out.trimmed_fastq.combine(ASSEMBLY.out.Assembly_files))
}
该脚本可以工作,但是一旦到达第五个进程(FASTQC2),即使生成了输出文件,但脚本也停止运行,它仍然给出以下错误:
`ERROR ~ Error executing process > 'FASTQC2 (1)'
Caused by:
Missing output file(s) sample_id2_fastqc.html expected by process FASTQC2 (1)
Command executed:
fastqc sample_id.trimmed.fastq -t 4
Command exit status:
0
Command output:
Analysis complete for sample_id.trimmed.fastq
Command error:
Started analysis of sample_id.trimmed.fastq
Approx 5% complete for sample_id.trimmed.fastq
Approx 10% complete for sample_id.trimmed.fastq
Approx 20% complete for sample_id.trimmed.fastq
Approx 25% complete for sample_id.trimmed.fastq
Approx 35% complete for sample_id.trimmed.fastq
Approx 40% complete for sample_id.trimmed.fastq
Approx 50% complete for sample_id.trimmed.fastq
Approx 55% complete for sample_id.trimmed.fastq
Approx 65% complete for sample_id.trimmed.fastq
Approx 70% complete for sample_id.trimmed.fastq
Approx 80% complete for sample_id.trimmed.fastq
Approx 85% complete for sample_id.trimmed.fastq
Approx 95% complete for sample_id.trimmed.fastq
Work dir:
/home/staukobong/work/89/9ecd8124e69bdb6ad772d423711c87
Tip: when you have fixed the problem you can continue the execution adding the option -resume to the run command line
-- Check '.nextflow.log' file for details`
不确定问题可能是什么,因为第一个 fastqc 和其他进程都有效。我能否就此获得一些帮助,我将不胜感激。谢谢你。
Fastqc 将去掉 .fastq 扩展名,其输出文件将以此作为基本名称。因此,当您喂它
sample_id.trimmed.fastq
时,基本名称将为sample_id.trimmed
,您的 html 报告将发送至 sample_id.trimmed_fastqc.html
。
您已经告诉 fastqc2 进程期望生成一个名为
sample_id2_fastqc.html
的文件:
原因: 缺少进程 FASTQC2 所需的输出文件sample_id2_fastqc.html (1)
更改 FASTQC2 进程的
output:
以与 fastqc 生成的文件名完全匹配。