Error when installing MAVProxy on Raspberry Pi

Download and Installation - Getting this error when trying to download mavproxy to a Raspberry Pi 2 Model B

“ERROR: THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS FILE. If you have updated the package versions, please update the hashes. Otherwise, examine the package contents carefully; someone may have tampered with them.
mavproxy from https://www.piwheels.org/simple/mavproxy/MAVProxy-1.8.59-py3-n

This is the bit of command line output when it happens

Looking in indexes: https://pypi.org/simple, https://www.piwheels.org/simple
Collecting mavproxy
  Downloading https://www.piwheels.org/simple/mavproxy/MAVProxy-1.8.59-py3-none-                                                                                        any.whl (7.1 MB)
     |████████████████████████████▍   | 6.3 MB 4.8 kB/s eta 0:02:47
ERROR: THESE PACKAGES DO NOT MATCH THE HASHES FROM THE REQUIREMENTS FILE. If you                                                                                         have updated the package versions, please update the hashes. Otherwise, examine                                                                                         the package contents carefully; someone may have tampered with them.
    mavproxy from https://www.piwheels.org/simple/mavproxy/MAVProxy-1.8.59-py3-n

I copy pasted the code (attached below) into the command line and hit enter and let the installation happen.

sudo apt-get install python3-dev python3-opencv python3-wxgtk4.0 python3-pip python3-matplotlib python3-lxml python3-pygame
pip3 install PyYAML mavproxy --user
echo 'export PATH="$PATH:$HOME/.local/bin"' >> ~/.bashrc

Any input on how I can fix this? Thanks in advance! Also, apologies if this is in the wrong category. Wasn’t sure which one to put it in.