Traceback (most recent call last):
  File "/usr/src/app/build_drug_desc.py", line 115, in <module>
    main()
  File "/usr/src/app/build_drug_desc.py", line 89, in main
    id_morg = ids.rename({"canSMILES":'smile'},axis=1).merge(morgs)[['improve_drug_id','structural_descriptor','descriptor_value']]
  File "/usr/local/lib/python3.9/site-packages/pandas/core/frame.py", line 10839, in merge
    return merge(
  File "/usr/local/lib/python3.9/site-packages/pandas/core/reshape/merge.py", line 170, in merge
    op = _MergeOperation(
  File "/usr/local/lib/python3.9/site-packages/pandas/core/reshape/merge.py", line 786, in __init__
    self.left_on, self.right_on = self._validate_left_right_on(left_on, right_on)
  File "/usr/local/lib/python3.9/site-packages/pandas/core/reshape/merge.py", line 1573, in _validate_left_right_on
    raise MergeError(
pandas.errors.MergeError: No common columns to perform merge on. Merge options: left_on=None, right_on=None, left_index=False, right_index=False