Errors encountered
Today before open write OpenGL rendering triangular program, found that have been submitted to the following error

when thought is a good start you don’t have links to files and library files, search on the Internet, and finally found the problem, is you don’t have the glad. C files added to the project.
The solution
Before remembering yourself to add glad.c file is passed in the source file ->; Create a new item, create a new glad.c file, and then copy the contents of the glad.c file from the other directory.

> By right-clicking the source file ->; Add an existing item ->;