Error using vis function and blocks option

[FH96]

Hi,
I am running the code provided in the tutorial section, I have problem in the following line

$ wgbstools vis -r chr3:119527929-119531943 -b blocks.small.bed.gz *beta

I face this error:
" File "/home/fatemeh/wgbs_tools/src/python/wgbs_tools.py", line 96, in
main()
File "/home/fatemeh/wgbs_tools/src/python/wgbs_tools.py", line 63, in main
importlib.import_module(args.command).main()
File "/home/fatemeh/wgbs_tools/src/python/vis.py", line 94, in main
pat_vis_main(args)
File "/home/fatemeh/wgbs_tools/src/python/pat_vis.py", line 247, in main
PatVis(args, pat_file).print_results()
File "/home/fatemeh/wgbs_tools/src/python/pat_vis.py", line 120, in print_results
txt, markers = self.insert_borders(markers)
File "/home/fatemeh/wgbs_tools/src/python/pat_vis.py", line 78, in insert_borders
borders = load_borders(self.blocks_path, table_gr, self.args.genome)
File "/home/fatemeh/wgbs_tools/src/python/utils_wgbs.py", line 323, in load_borders
df = read_shell(f'tabix {bpath} {gr.region_str}', usecols=[3, 4]) # load borders section
File "/home/fatemeh/wgbs_tools/src/python/utils_wgbs.py", line 452, in read_shell
raise IOError(message.format(proc.returncode, command, error.decode()))
OSError: Shell command returned non-zero exit status: 1

Command was:
tabix blocks.small.bed.gz chr3:119527857-119532096

Standard error was:
[E::hts_hopen] Failed to open file blocks.small.bed.gz
[E::hts_open_format] Failed to open file "blocks.small.bed.gz" : Exec format error
Could not open "blocks.small.bed.gz": Exec format error"

Thanks in advance

[emblake85]

See $wgbstools index -h

Unzip blocks.small.bed.gz then $wgbstools index blocks.small.bed and $wgbstools vis -r chr3:119527929-119531943 -b blocks.small.bed.gz *beta