Install qt4-linguist-tools by entering the following commands in the terminal:
sudo apt update sudo apt install qt4-linguist-tools
Description:
Qt 4 Linguist tools
Qt is a cross-platform C++ application framework. Qt's primary feature is its rich set of widgets that provide standard GUI functionality. . This package contains lupdate and lrelease. lupdate is a command line tool that finds the translatable strings in the specified source, header and Qt Designer interface files, and produces or updates .ts translation files. lrelease is a command line tool that produces QM files out of TS files.
Homepage: http://qt-project.org/
Version: 4:4.8.7+dfsg-7ubuntu1
Section: universe/devel