error message of using pip install in Anaconda environment

[wenouyang]

I was trying to install orbit under the Anaconda environment on Windows, and uses

pip install orbit-ml --user

and I got the following error message

WARNING: Ignoring invalid distribution -atplotlib (c:\users\uz\appdata\roaming\python\python37\site-packages)
Installing collected packages: pytz, pandas, matplotlib
ERROR: Could not install packages due to an OSError: [WinError 32] The process cannot access the file because it is being used by another process: 'C:\\Users\\uz\\AppData\\Roaming\\Python\\Python37\\site-packages\\matplotlib\\mpl-data\\fonts\\ttf\\DejaVuSans-Bold.ttf'
Check the permissions.

[pochoi]

Do you want to provide the python and pip version of your environment? Do you want to update your pip?