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bowtie2-align died with signal 6 (ABRT) (core dumped)

I do not know why I got the below error:

bowtie2 -x tdna -U s21.fq -S sample5.sam 
Error: reads file does not look like a FASTQ file
terminate called after throwing an instance of 'int'
(ERR): bowtie2-align died with signal 6 (ABRT) (core dumped)

Thank you in advance.

rna-seq alignment

Please share first few lines of s21.fq

Also, are you using some very old version of bowtie2. Please specify the bowtie2 version.

Thank you all, my fastq file was broken.

I opened the file and saw that accidentally during the trimming stage I converted it to a FASTA file.

Thank you all, my fastq file was broken.

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