Qt 5152 Offline Installer -

export QTDIR="/opt/Qt/5.15.2/gcc_64" export PATH="$QTDIR/bin:$PATH" export LD_LIBRARY_PATH="$QTDIR/lib:$LD_LIBRARY_PATH" # Linux only export QT_QPA_PLATFORM_PLUGIN_PATH="$QTDIR/plugins/platforms"

Log into your Qt Account and navigate to the Downloads section. Official offline installers for 5.15.2 (LTS) are readily available there for Windows, macOS, and Linux. qt 5152 offline installer

Install on machines without internet access. export QTDIR="/opt/Qt/5