Installed WxWidgets Commands:udo apt-key adv --fetch-keys https://repos.codelite.org/CodeLite.asc
sudo apt-add-repository 'deb https://repos.codelite.org/wx3.1.3/ubuntu/ eoan universe'
apt-get update
sudo apt-get install libwxbase3.1-0-unofficial3 \
libwxbase3.1unofficial3-dev \
libwxgtk3.1-0-unofficial3 \
libwxgtk3.1unofficial3-dev \
wx3.1-headers \
wx-common \
libwxgtk-media3.1-0-unofficial3 \
libwxgtk-media3.1unofficial3-dev \
libwxgtk-webview3.1-0-unofficial3 \
libwxgtk-webview3.1unofficial3-dev \
libwxbase3.1-0-unofficial3-dbg \
libwxgtk3.1-0-unofficial3-dbg \
libwxgtk-webview3.1-0-unofficial3-dbg \
libwxgtk-media3.1-0-unofficial3-dbg \
wx3.1-i18n \
wx3.1-examples
I get a message:E: Unable to locate package libwxgtk-media3.1unofficial3-dev
E: Couldn't find any package by glob 'libwxgtk-media3.1unofficial3-dev'
E: Couldn't find any package by regex 'libwxgtk-media3.1unofficial3-dev'
Why is there an error message?