Install libcplui26 by entering the following commands in the terminal:
sudo apt update sudo apt install libcplui26
Description:
CPL framework interface library
The CPLUI (UI for User Interface) provides services defining the standard interface for recipes and provides more complex data reduction related utilities and services. In particular, it contains the necessary types to handle the plugin interface, the parameters used to handle command-line options and the (set of) frames used to store the input list of files. . The Common Pipeline Library (CPL) comprises a set of ISO-C libraries that provide a comprehensive, efficient and robust software toolkit. It forms a basis for the creation of automated astronomical data-reduction tasks (known as "pipelines").
Homepage: https://www.eso.org/sci/software/cpl/
Version: 7.1-3
Section: universe/libs