Install libneon27-gnutls-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libneon27-gnutls-dev
Header and static library files for libneon27 (GnuTLS enabled)
This package contains the headers and the static library for libneon27-gnutls. . Neon provides lower-level interfaces to directly implement new HTTP methods, and higher-level interfaces so that you don't have to worry about the lower-level stuff.