No such file or directory but file exist

Question

I installed pcl. There is a pcl folder under user/include/pcl-1.7. I add #include <pcl/ModelCoefficients.h> line to cpp file. On terminal, I try to compile this file.

g++ -c test.cpp 
fatal error: pcl/ModelCoefficients.h: No such file or directory
#include <pcl/ModelCoefficients.h>
                               ^
compilation terminated.

How can I solve this error?

Answer 1

Use -I to tell the compiler to search the user/include/plc-1.7 path for header files:

g++ -Iuser/include/plc-1.7 -c test.cpp 

More info:

• https://gcc.gnu.org/onlinedocs/cpp/Search-Path.html
• https://gcc.gnu.org/onlinedocs/cpp/System-Headers.html