Build issue

[million1224]

I still have build problem in google colab. How to run compiler C++17 in google colab?

CMakeFiles/SampleProject.dir/build.make:62: recipe for target 'CMakeFiles/SampleProject.dir/examples/cpp_example.cpp.o' failed
make[2]: *** [CMakeFiles/SampleProject.dir/examples/cpp_example.cpp.o] Error 1
CMakeFiles/Makefile2:72: recipe for target 'CMakeFiles/SampleProject.dir/all' failed
make[1]: *** [CMakeFiles/SampleProject.dir/all] Error 2
Makefile:83: recipe for target 'all' failed

[newjavaer]

hi , do you download the datase "grabcut image database"?