I am following the Modern OpenGL 3.0+ (https://www.youtube.com/watch?v=RnXDUFq7T6A), while building my project I am having Apple Mach -o Linker (id) Error. 

Undefined symbols for architecture x86_64:
  "_SOIL_free_image_data", referenced from:
      _main in main.o
  "_SOIL_load_image", referenced from:
      _main in main.o
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)

Error screenshot: https://drive.google.com/file/d/1fyITTkucA1WGisLbHkEbktI_OfhI9KQc/view?usp=sharing

Please help :)