import sklearn
报错：
Traceback (most recent call last):
  File "<pyshell#3>", line 1, in <module>
    import sklearn
  File "D:\Python27\lib\site-packages\scikit_learn-0.15.2-py2.7-win-amd64.egg\sklearn\__init__.py", line 38, in <module>
    from .base import clone
  File "D:\Python27\lib\site-packages\scikit_learn-0.15.2-py2.7-win-amd64.egg\sklearn\base.py", line 10, in <module>
    from scipy import sparse
  File "D:\Python27\lib\site-packages\scipy\sparse\__init__.py", line 182, in <module>
    from .csr import *
  File "D:\Python27\lib\site-packages\scipy\sparse\csr.py", line 15, in <module>
    from .sparsetools import csr_tocsc, csr_tobsr, csr_count_blocks, \
  File "D:\Python27\lib\site-packages\scipy\sparse\sparsetools\__init__.py", line 5, in <module>
    from .csr import *
  File "D:\Python27\lib\site-packages\scipy\sparse\sparsetools\csr.py", line 26, in <module>
    _csr = swig_import_helper()
  File "D:\Python27\lib\site-packages\scipy\sparse\sparsetools\csr.py", line 22, in swig_import_helper
    _mod = imp.load_module('_csr', fp, pathname, description)
ImportError: DLL load failed: %1 不是有效的 Win32 应用程序。

用的python2.7.9，我已经安装了numpy1.9.1，scipy0.12.0，sklearn0.15.1，这些都是支持64位系统的，遇到这个问题我该怎么办

豆子不多，请不吝赐教啊