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Kernel error
See original GitHub issueI performed the manual installation as given in the “README.md”. But I am getting Kernel error during kernel start. Failed to start the kernel Unknown server error
Traceback (most recent call last):
File "C:\Program Files\Anaconda3\lib\site-packages\notebook\base\handlers.py", line 457, in wrapper
result = yield gen.maybe_future(method(self, *args, **kwargs))
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "<string>", line 3, in raise_exc_info
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Program Files\Anaconda3\lib\site-packages\notebook\services\sessions\handlers.py", line 62, in post
kernel_id=kernel_id))
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "<string>", line 3, in raise_exc_info
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Program Files\Anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 79, in create_session
kernel_name)
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "<string>", line 3, in raise_exc_info
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Program Files\Anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 92, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "<string>", line 3, in raise_exc_info
File "C:\Program Files\Anaconda3\lib\site-packages\tornado\gen.py", line 285, in wrapper
yielded = next(result)
File "C:\Program Files\Anaconda3\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 87, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Program Files\Anaconda3\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\Program Files\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 243, in start_kernel
**kw)
File "C:\Program Files\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 189, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "C:\Program Files\Anaconda3\lib\site-packages\jupyter_client\launcher.py", line 123, in launch_kernel
proc = Popen(cmd, **kwargs)
File "C:\Program Files\Anaconda3\lib\subprocess.py", line 947, in __init__
restore_signals, start_new_session)
File "C:\Program Files\Anaconda3\lib\subprocess.py", line 1224, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified
OS - Win10 Python distro - Anaconda3 with Python 3.5.2
EDIT: I also tried it in my Python 2.7.12 environment in Anaconda. The same problem there too.
Failed to start the kernel Unknown server error
Traceback (most recent call last):
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\notebook\base\handlers.py", line 457, in wrapper
result = yield gen.maybe_future(method(self, *args, **kwargs))
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\notebook\services\sessions\handlers.py", line 62, in post
kernel_id=kernel_id))
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 79, in create_session
kernel_name)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 92, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\tornado\gen.py", line 285, in wrapper
yielded = next(result)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 87, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\jupyter_client\manager.py", line 243, in start_kernel
**kw)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\jupyter_client\manager.py", line 189, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "C:\Program Files\Anaconda3\envs\python27\lib\site-packages\jupyter_client\launcher.py", line 123, in launch_kernel
proc = Popen(cmd, **kwargs)
File "C:\Program Files\Anaconda3\envs\python27\lib\subprocess.py", line 711, in __init__
errread, errwrite)
File "C:\Program Files\Anaconda3\envs\python27\lib\subprocess.py", line 959, in _execute_child
startupinfo)
WindowsError: [Error 2] The system cannot find the file specified```
Issue Analytics
- State:
- Created 7 years ago
- Comments:12
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I have been using Linux for a while now; so I can’t test this solution and tell you that it’ll definitely work, but I just think it might. In the python script - “C:\Program Files\Anaconda3\envs\python27\lib\site-packages\jupyter_client\launcher.py”, change line 123 (where the error arises from) from this: proc = Popen(cmd, **kwargs) To this: proc = Popen(cmd, **kwargs, shell=True)
I have worked with the subprocess module for sometime, and in Windows, I had to invariably pass the additional ‘shell=True’ argument in every Popen() call (even where it isn’t supposed to be there) in order to make it work. I think it is a subprocess-Windows problem, and this solution is a dirty, temporary fix. Could you try this fix and post back here?
these steps worked for me sudo pip3 install jupyter-c-kernel git clone https://github.com/brendan-rius/jupyter-c-kernel.git cd jupyter-c-kernel/ jupyter-kernelspec install c_spec/ sudo pip3 install ipykernel jupyter-notebook