esmf_import_error

---------------------------------------------------------------------------
AttributeError                            Traceback (most recent call last)
<ipython-input-6-bdb5c0ba4788> in <module>()
----> 1 import xesmf

/opt/conda/lib/python3.6/site-packages/xesmf/__init__.py in <module>()
      1 from . import util
      2 from . import data
----> 3 from . frontend import Regridder

/opt/conda/lib/python3.6/site-packages/xesmf/frontend.py in <module>()
      7 import os
      8 
----> 9 from . backend import (esmf_grid, add_corner,
     10                        esmf_regrid_build, esmf_regrid_finalize)
     11 

/opt/conda/lib/python3.6/site-packages/xesmf/backend.py in <module>()
     17 
     18 import numpy as np
---> 19 import ESMF
     20 import warnings
     21 import os

/opt/conda/lib/python3.6/site-packages/ESMF/__init__.py in <module>()
     68 #### IMPORT LIBRARIES #########################################################
     69 
---> 70 from ESMF.api.esmpymanager import *
     71 from ESMF.api.grid import *
     72 from ESMF.api.mesh import *

/opt/conda/lib/python3.6/site-packages/ESMF/api/esmpymanager.py in <module>()
      9 from ESMF.api.constants import *
     10 from ESMF.util.exceptions import *
---> 11 from ESMF.interface.cbindings import *
     12 from ESMF.util.decorators import initialize
     13 

/opt/conda/lib/python3.6/site-packages/ESMF/interface/cbindings.py in <module>()
      9 import sys
     10 
---> 11 import ESMF.api.constants as constants
     12 from ESMF.util.decorators import deprecated, netcdf
     13 from ESMF.interface.loadESMF import _ESMF

AttributeError: module 'ESMF' has no attribute 'api'