It's giving notification.
[W::bam_merge_core2] No @HD tag found error.
Program terminated after generating BAM file.
I enclosed the log file.
bwa.logtrimmomatic.logsamtools.log
Sorry for my late reply.
We attached the test dataset on the main Github page.
Please check whether your dataset has a problem or not using that test dataset.
It's giving notification. [W::bam_merge_core2] No @HD tag found error. Program terminated after generating BAM file. I enclosed the log file. bwa.log trimmomatic.log samtools.log