system dependencies

[sunghyun-nam]

Hello.

When I ran command lines for system dependencies, I got an error like

sudo apt-get install -yqq build-essential ninja-build \

python3-dev python3-pip apt-utils curl git cmake unzip autoconf autogen
libtool mlocate zlib1g-dev python3-numpy python3-wheel wget
software-properties-common openjdk-8-jdk libpng-dev
libxft-dev ffmpeg python3-pyqt5.qtopengl

E: Unable to locate package autogen E: Unable to locate package openjdk-8-jdk E: Package 'ffmpeg' has no installation candidate E: Unable to locate package python3-pyqt5.qtopengl E: Couldn't find any package by glob 'python3-pyqt5.qtopengl' E: Couldn't find any package by regex 'python3-pyqt5.qtopengl'

Do you know how to solve it?

Thanks in advance.