pycdt errror

[张瑞]

inout pycdt or pycdt generate_input it goes

ImportError: cannot import name 'Structure' from 'pymatgen' (unknown location)

I dont know where is wrong

this is the detial 

Traceback (most recent call last):

  File "/home/user230/apps/anaconda3/bin/pycdt", line 4, in <module>

    __import__('pkg_resources').run_script('pycdt==2.0.5', 'pycdt')

  File "/home/user230/apps/anaconda3/lib/python3.8/site-packages/pkg_resources/__init__.py", line 651, in run_script

    self.require(requires)[0].run_script(script_name, ns)

  File "/home/user230/apps/anaconda3/lib/python3.8/site-packages/pkg_resources/__init__.py", line 1448, in run_script

    exec(code, namespace, namespace)

  File "/home/user230/apps/anaconda3/lib/python3.8/site-packages/pycdt-2.0.5-py3.8.egg/EGG-INFO/scripts/pycdt", line 40, in <module>

    from pycdt.core.defects_analyzer import ComputedDefect

  File "/home/user230/apps/anaconda3/lib/python3.8/site-packages/pycdt-2.0.5-py3.8.egg/pycdt/core/defects_analyzer.py", line 24, in <module>

    from pycdt.utils.parse_calculations import SingleDefectParser

  File "/home/user230/apps/anaconda3/lib/python3.8/site-packages/pycdt-2.0.5-py3.8.egg/pycdt/utils/parse_calculations.py", line 32, in <module>

    from pycdt.core.chemical_potentials import MPChemPotAnalyzer

  File "/home/user230/apps/anaconda3/lib/python3.8/site-packages/pycdt-2.0.5-py3.8.egg/pycdt/core/chemical_potentials.py", line 18, in <module>

    from pymatgen import Structure, Element

ImportError: cannot import name 'Structure' from 'pymatgen' (unknown location)

[PyCDT forum]

Could you please check the pymatgen installation?