fatal error about solution-to-graphics.h

[ullaskunder3]

Its not detecting the header file... did you added those file to include and lib folder of mingw as mentioned in README file:
If you dont have MinGW install it from official and follow the steps & make sure you set bin folder to environment variable...
Copy graphics.h and winbgim.h files to MinGW/include folder. Location Might be ("C:\MinGW\include")
Copy libbgi.a to file to MinGW/lib folder. Location ("C:\MinGW\lib")

[ullaskunder3]

PS C:\Users\Subhajit\Desktop\project\cpp\collage lab\testFolder> g++ -o testfile example.cpp -lbgi -lgdi32 -lcomdlg32 -luuid -loleaut32 -lole32
example.cpp:2:14: fatal error: graphics.h: No such file or directory
2 | #include <graphics.h>
| ^~~~~~
compilation terminated.

try again and this time cross verify everything project template let me know...