Install libnftnl-dev by entering the following commands in the terminal:
sudo apt update sudo apt install libnftnl-dev
Development files for libnftnl
libnftnl is the low-level library for Netfilter 4th generation framework nftables. . Is the user-space library for low-level interaction with nftables Netlink's API over libmnl. . This package provides development files and static libraries.