ImportError: No module named Cython.Build

[uuufly]

when I Go to ./libs/datasets/pycocotools and run make, there is a mistake as follows:

python setup.py build_ext --inplace Traceback (most recent call last): File "setup.py", line 2, in from Cython.Build import cythonize

Makefile:3: recipe for target 'all' failed make: *** [all] Error 1

[Lane565]

same unsolved problem as you