can not launch Spyder after installing mafan

[johnsonice]

(py35) Chengyus-MBP:~ huang$ spyder Traceback (most recent call last): File "/Users/huang/anaconda3/envs/py35/bin/spyder", line 4, in <module> import spyder.app.start File "/Users/huang/anaconda3/envs/py35/lib/python3.5/site-packages/spyder/app/start.py", line 13, in <module> from spyder.config.base import get_conf_path, running_in_mac_app File "/Users/huang/anaconda3/envs/py35/lib/python3.5/site-packages/spyder/config/base.py", line 25, in <module> from spyder.utils import encoding File "/Users/huang/anaconda3/envs/py35/lib/python3.5/site-packages/spyder/utils/encoding.py", line 20, in <module> from chardet.universaldetector import UniversalDetector File "/Users/huang/anaconda3/envs/py35/lib/python3.5/site-packages/chardet/universaldetector.py", line 54 self.done = constants.False

I am running python 3.5, I saw that in the installation process, it uninstalled charted-2.3.0 and installed charted-2.1.1

I guess that is the problem.