You can run this in the container to reset the sources.list:
echo “deb Index of /ubuntu bionic main restricted”>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-updates main restricted”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic universe”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-updates universe”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic multiverse”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-updates multiverse”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-backports main restricted universe multiverse”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-security main restricted”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-security universe”>>/etc/apt/sources.list \
echo “deb Index of /ubuntu bionic-security multiverse”>>/etc/apt/sources.list
Run this to reset the pip3 config:
rm ~/.pip/pip.conf
The above fixes will be available in Isaac Sim 2022.1.1