ERROR ~ Error executing process > 'bin_library_pairs (library:senescent_2 resolution:1000)'

Caused by:
  Process `bin_library_pairs (library:senescent_2 resolution:1000)` terminated with an error exit status (1)

Command executed:

  cooler cload pairix         --nproc 8         --assembly hg19         chrfile.txt:1000 senescent_2.nodups.pairs.gz senescent_2.1000.cool

  cooler balance --nproc 8  senescent_2.1000.cool

Command exit status:
  1

Command output:
  (empty)

Command error:
  + cooler cload pairix --nproc 8 --assembly hg19 chrfile.txt:1000 senescent_2.nodups.pairs.gz senescent_2.1000.cool
  Traceback (most recent call last):
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/bin/cooler", line 11, in <module>
      sys.exit(cli())
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/click/core.py", line 722, in __call__
      return self.main(*args, **kwargs)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/click/core.py", line 697, in main
      rv = self.invoke(ctx)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
      return _process_result(sub_ctx.command.invoke(sub_ctx))
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/click/core.py", line 1066, in invoke
      return _process_result(sub_ctx.command.invoke(sub_ctx))
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/click/core.py", line 895, in invoke
      return ctx.invoke(self.callback, **ctx.params)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/click/core.py", line 535, in invoke
      return callback(*args, **kwargs)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/cooler/cli/cload.py", line 229, in pairix
      chromsizes, bins = _parse_bins(bins)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/cooler/cli/cload.py", line 41, in _parse_bins
      bins = util.binnify(chromsizes, binsize)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/cooler/util.py", line 261, in binnify
      ignore_index=True)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/pandas/core/reshape/concat.py", line 212, in concat
      copy=copy)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/pandas/core/reshape/concat.py", line 242, in __init__
      objs = list(objs)
    File "/exports/igmm/eddie/wendy-lab/ilia/condaenvs/Hi-C/lib/python3.6/site-packages/cooler/util.py", line 249, in _each
      n_bins = int(np.ceil(clen / binsize))
  ValueError: cannot convert float NaN to integer
  .command.run.1: line 99: 72023 Terminated              nxf_trace "$pid" .command.trace