Traceback (most recent call last):
  File "/home/ubuntu/miniconda3/bin/rna_pdb_toolsx.py", line 7, in <module>
    exec(compile(f.read(), __file__, 'exec'))
  File "/home/ubuntu/rna-tools/rna_tools/rna_pdb_toolsx.py", line 361, in <module>
    p = x3DNA(f)
  File "/home/ubuntu/rna-tools/rna_tools/tools/rna_x3dna/rna_x3dna.py", line 74, in __init__
    self.run_x3dna(show_log)
  File "/home/ubuntu/rna-tools/rna_tools/tools/rna_x3dna/rna_x3dna.py", line 137, in run_x3dna
    raise Exception('no_of_DNARNA_chains not found')
Exception: no_of_DNARNA_chains not found
DONE!