ImportError: numpy.core.multiarray failed to import

执行FasterRCNN源代码出现“ImportError: numpy.core.multiarray failed to import”错误

RuntimeError: module compiled against API version 0xa but this version of numpy is 0x7
Traceback (most recent call last):
  File "./faster_rcnn/train_net.py", line 23, in <module>
    from lib.fast_rcnn.train import get_training_roidb, train_net
  File "./faster_rcnn/../lib/__init__.py", line 1, in <module>
    import fast_rcnn
  File "./faster_rcnn/../lib/fast_rcnn/__init__.py", line 9, in <module>
    from . import train
  File "./faster_rcnn/../lib/fast_rcnn/train.py", line 11, in <module>
    import tensorflow as tf
  File "/usr/lib/python2.7/site-packages/tensorflow/__init__.py", line 24, in <module>
    from tensorflow.python import *
  File "/usr/lib/python2.7/site-packages/tensorflow/python/__init__.py", line 49, in <module>
    from tensorflow.python import pywrap_tensorflow
  File "/usr/lib/python2.7/site-packages/tensorflow/python/pywrap_tensorflow.py", line 52, in <module>
    raise ImportError(msg)
ImportError: Traceback (most recent call last):
  File "/usr/lib/python2.7/site-packages/tensorflow/python/pywrap_tensorflow.py", line 41, in <module>
    from tensorflow.python.pywrap_tensorflow_internal import *
  File "/usr/lib/python2.7/site-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 28, in <module>
    _pywrap_tensorflow_internal = swig_import_helper()
  File "/usr/lib/python2.7/site-packages/tensorflow/python/pywrap_tensorflow_internal.py", line 24, in swig_import_helper
    _mod = imp.load_module('_pywrap_tensorflow_internal', fp, pathname, description)
ImportError: numpy.core.multiarray failed to import

解决方法：

更新numpy版本，删除老的版本

pip install -U numpy