Code Run and Compiled on Ubuntu 20.04.2 LTS gcc compiler through VSCode To compile code: Install vcpkg at https://docs.microsoft.com/en-us/cpp/build/vcpkg?view=msvc-160 Type the following commands into terminal to Install mkdir repo cd repo git clone https://github.com/microsoft/vcpkg.git cd vcpkg ./bootstrap-vcpkg.sh ./vcpkg integrate install ./vcpkg install curl[tools] sudo apt-get install libcurl4-openssl-dev ./vcpkg install json-c These commands should allow you to compile the program after reloading the terminal. compile + flags: gcc main.c -lcurl -ljson-c My compiled executable is attached!