Qt 5.14

https://stackoverflow.com/questions/36128645/error-on-execution-version-qt-5-not-found-required-by

To update QT to 5.14 on Ubuntu 18.04.5 LTS x86_64:

• sudo add-apt-repository ppa:beineri/opt-qt-5.14.0-bionic
• sudo apt-get update
• sudo apt-get install qt514-meta-minimal -y
• export LD_LIBRARY_PATH=/opt/qt514/lib/

More details: https://launchpad.net/~beineri/+archive/ubuntu/opt-qt-5.14.0-bionic