Traceback (most recent call last):

 "./examples/mnist/train_mnist.py", line 88, in <module>
optimizer.update(model, x, t)

 "/root/anaconda2/lib/python2.7/site-packages/chainer-1.5.0.2-py2.7-linux-x86_64.egg/chainer/optimizer.py", line 376, in update
self.target.zerograds()

 "/root/anaconda2/lib/python2.7/site-packages/chainer-1.5.0.2-py2.7-linux-x86_64.egg/chainer/link.py", line 530, in zerograds
super(Chain, self).zerograds()

 "/root/anaconda2/lib/python2.7/site-packages/chainer-1.5.0.2-py2.7-linux-x86_64.egg/chainer/link.py", line 318, in zerograds
param.zerograd()

 "/root/anaconda2/lib/python2.7/site-packages/chainer-1.5.0.2-py2.7-linux-x86_64.egg/chainer/variable.py", line 151, in zerograd
self._grad.fill(0)

 "cupy/core/core.pyx", line 364, in cupy.core.core.ndarray.fill (cupy/core/core.cpp:7870)
cpdef fill(self, value):

 "cupy/core/core.pyx", line 373, in cupy.core.core.ndarray.fill (cupy/core/core.cpp:7815)
elementwise_copy(value, self, dtype=self.dtype)

 "cupy/core/elementwise.pxi", line 756, in cupy.core.core.ufunc.__call__ (cupy/core/core.cpp:42043)
kern = _get_ufunc_kernel(

 "cupy/util.pyx", line 36, in cupy.util.memoize.decorator.ret (cupy/util.cpp:1194)
result = f(*args, **kwargs)

 "cupy/core/elementwise.pxi", line 566, in cupy.core.core._get_ufunc_kernel (cupy/core/core.cpp:38632)
return _get_simple_elementwise_kernel(

 "cupy/core/elementwise.pxi", line 32, in cupy.core.core._get_simple_elementwise_kernel (cupy/core/core.cpp:29309)
module = compile_with_cache(module_code, options)

 "cupy/core/carray.pxi", line 87, in cupy.core.core.compile_with_cache (cupy/core/core.cpp:28987)
return cuda.compile_with_cache(source, options, arch, cachd_dir)

 "/root/anaconda2/lib/python2.7/site-packages/chainer-1.5.0.2-py2.7-linux-x86_64.egg/cupy/cuda/compiler.py", line 102, in compile_with_cache
base = _empty_file_preprocess_cache[env] = preprocess('', options)

 "/root/anaconda2/lib/python2.7/site-packages/chainer-1.5.0.2-py2.7-linux-x86_64.egg/cupy/cuda/compiler.py", line 65, in preprocess
pp_src = subprocess.check_output(cmd, cwd=root_dir)

 "/root/anaconda2/lib/python2.7/subprocess.py", line 566, in check_output
process = Popen(stdout=PIPE, *popenargs, **kwargs)

 "/root/anaconda2/lib/python2.7/subprocess.py", line 710, in __init__
errread, errwrite)

 "/root/anaconda2/lib/python2.7/subprocess.py", line 1335, in _execute_child
raise child_exceptionOSError: [Errno 2] No such file or directory
Traceback (most recent call last):


 "c:\users\nikla\env\lib\site-packages\urllib3\connectionpool.py", line 600, in urlopen

chunked=chunked)


 "c:\users\nikla\env\lib\site-packages\urllib3\connectionpool.py", line 343, in _make_request

self._validate_conn(conn)


 "c:\users\nikla\env\lib\site-packages\urllib3\connectionpool.py", line 849, in _validate_conn

conn.connect()


 "c:\users\nikla\env\lib\site-packages\urllib3\connection.py", line 314, in connect

conn = self._new_conn()


 "c:\users\nikla\env\lib\site-packages\urllib3\connection.py", line 180, in _new_conn

self, "Failed to establish a new connection: %s" % e)
urllib3.exceptions.NewConnectionError: <urllib3.connection.VerifiedHTTPSConnection object at 0x041C9350>: Failed to establish a new connection: [WinError 10060] A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond
