Issue on Building and Installing the USRP Open-Source Toolchain (UHD and GNU Radio) on Ubuntu 18.04

 Follow the original tutorial in a clean Ubuntu

Building and Installing the USRP Open-Source Toolchain (UHD and GNU Radio) on Linux 

What you will get

E: Unable to locate package libcppunit-1.14-0 

E: Couldn't find any package by glob 'libcppunit-1.14-0' 

E: Couldn't find any package by regex 'libcppunit-1.14-0' 

Sol: Ubuntu18.04 install libcppunit-1.14-0 Error

E: Package 'python-scipy' has no installation candidate 

Sol: Ubuntu 18.04 python2 python-scipy installation

E: Unable to locate package qt4-bin-dbg 

E: Package 'qt4-default' has no installation candidate 

E: Package 'qt4-doc' has no installation candidate 

E: Package 'libqt4-dev' has no installation candidate 

E: Unable to locate package libqt4-dev-bin 

Sol: Ubuntu 18.04 python2 python-scipy installation

E: Unable to locate package python-qt4 

E: Unable to locate package python-qt4-dbg 

E: Unable to locate package python-qt4-dev 

E: Unable to locate package python-qt4-doc 

E: Unable to locate package python-qt4-doc 

E: Unable to locate package libqwt6abi1 

E: Unable to locate package libncurses6-dbg 

E: Package 'libqt4-dev' has no installation candidate 

E: Package 'qt4-default' has no installation candidate 

E: Unable to locate package qt4-dev-tools 

E: Unable to locate package pyqt4-dev-tools 

E: Unable to locate package python-qwt5-qt4 

E: Unable to locate package python-gtk2 

E: Unable to locate package python-requests 

E: Package 'python-sphinx' has no installation candidate 

E: Unable to locate package python-zmq 

E: Package 'libqwt-dev' has no installation candidate 

E: Unable to locate package libqwt6abi1 

E: Unable to locate package libgps23 

E: Package 'python-gps' has no installation candidate