Unhelpful error message when R1 fastq missing

[shapemapper]

If an R2 fastq is present in an input folder specified with --folder, but an R1 fastq is missing/not present, the following unhelpful error message is generated:

Traceback (most recent call last): File "/home/ubuntu/shapemapper-2.1.4/internals/python/cli.py", line 141, in run(sys.argv) File "/home/ubuntu/shapemapper-2.1.4/internals/python/cli.py", line 51, in run pipeline, arg_dict = ap.construct(rest_args) File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/pipeline_arg_parser.py", line 522, in construct return (build_pipeline(**kw), File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/pipeline_builder.py", line 422, in build_pipeline pipeline.setup() File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/pipeline.py", line 514, in setup self.gen_filenames(path=temp) File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/pipeline.py", line 444, in gen_filenames node.filename = gen_name(node) File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/pipeline.py", line 414, in gen_name extension = node.get_extension() File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/nodes.py", line 72, in get_extension return self.input_node.get_extension() File "/home/ubuntu/shapemapper-2.1.4/internals/python/pyshapemap/nodes.py", line 258, in get_extension return self.parent_component.input_nodes[0].get_extension() IndexError: list index out of range

[shapemapper]

fixed in 2.1.5