Hi @Lorenzo
Your job at the UseGalaxy.org.au server used a tool version that includes the prior fix. Maybe something else is going wrong.
The tool is expecting reads as an input, not a BAM. Even if the BAM includes only-reads (not a mapping result), those reads should be extracted into fastq/fasta formatted datasets for this tool to understand the input. VGP assembly pipeline
Tools filter for appropriate inputs based on the datatype. Dragging and dropping inputs can avoid that check but it is not recommended, and expect errors if you try.
If this doesn’t address the problem, would you please generate and post back a shared history link Sharing your History? We can review in more detail that way. Or, you can post back more details just about the input 5 : Merged meryl 1
since that seems to be at least part of the problem.