problems in compile.sh #16

when I run the compile.sh, problems genearated as following:

In file included from ../exp/blackdrops/src/tutorials/dart_reacher2d.cpp:66:0:
../exp/blackdrops/include/blackdrops/system/dart_system.hpp:69:10: fatal error: robot_dart/graphics/graphics.hpp: No such file or directory
#include <robot_dart/graphics/graphics.hpp>
^~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
compilation terminated.

...

Waf: Leaving directory `/home/wrf/Documents/Code_robotics/blackdrops-master/deps/limbo/build'
Build failed
-> task in 'dart_reacher2d_graphic' failed with exit status 1 (run with -v to display more information)
-> task in 'dart_reacher2d_simu' failed with exit status 1 (run with -v to display more information)