Jupyter Notebook FileNotFoundError: [WinError 2] 系统找不到指定的文件 |
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Jupyter Notebook FileNotFoundError: [WinError 2] 系统找不到指定的文件
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问题描述：
通过Anaconda新创建环境“tfenv” python=3.5.5 并依次安装tensorflow, ipython，jupyter，matplotlib这三个包及其依赖包。然后在该环境下启动jupyter notebook，当想要新建一个notebook时报错。
上部菜单栏提示 Kernel error，点开后有如下错误： Failed to start the kernel. Traceback (most recent call last): File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\web.py", line 1592, in _execute result = yield result File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1133, in run value = future.result() File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\asyncio\futures.py", line 294, in result raise self._exception File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1141, in run yielded = self.gen.throw(*exc_info) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\notebook\services\sessions\handlers.py", line 73, in post type=mtype)) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1133, in run value = future.result() File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\asyncio\futures.py", line 294, in result raise self._exception File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1141, in run yielded = self.gen.throw(*exc_info) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 79, in create_session kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1133, in run value = future.result() File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\asyncio\futures.py", line 294, in result raise self._exception File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1141, in run yielded = self.gen.throw(*exc_info) File "D:\MySoftwares\Anaconda3\envs\tfenv\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 "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 1133, in run value = future.result() File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\asyncio\futures.py", line 294, in result raise self._exception File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\tornado\gen.py", line 326, in wrapper yielded = next(result) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 160, in start_kernel super(MappingKernelManager, self).start_kernel(**kwargs) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel km.start_kernel(**kwargs) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\jupyter_client\manager.py", line 259, in start_kernel **kw) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\jupyter_client\manager.py", line 204, in _launch_kernel return launch_kernel(kernel_cmd, **kw) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\site-packages\jupyter_client\launcher.py", line 138, in launch_kernel proc = Popen(cmd, **kwargs) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\subprocess.py", line 676, in __init__ restore_signals, start_new_session) File "D:\MySoftwares\Anaconda3\envs\tfenv\lib\subprocess.py", line 957, in _execute_child startupinfo) FileNotFoundError: [WinError 2] 系统找不到指定的文件。同时查看Anaconda Prompt 也报错如下： [E 12:25:38.580 NotebookApp] Failed to run command: ['D:/MySoftwares/Anaconda3/envs/tfenv/bin/python', '-m', 'ipykernel_launcher', '-f', 'C:\\Users\\xlwang\\AppData\\Roaming\\jupyter\\runtime\\kernel-63d96000-e78e-49f0-80c5-e5e6e1a54b27.json'] PATH='...(这里为自己本机的环境变量PATH中的各种路径)' with kwargs: {'close_fds': False, 'stderr': None, 'stdout': None, 'cwd': 'C:\\Users\\xlwang', 'stdin': -1} [E 12:25:38.582 NotebookApp] Uncaught exception POST /api/sessions (::1) HTTPServerRequest(protocol='http', host='localhost:8888', method='POST', uri='/api/sessions', version='HTTP/1.1', remote_ip='::1') Traceback (most recent call last): ......这里和前面Traceback内容一致。请求涛哥过来，我们一起百度，终于找到问题所在。主要参考的是这篇博客 解决方法：1、首先在cmd 使用jupyter kernelspec list查看安装的内核和位置。 2、进入安装内核目录打开kernel.jason文件，查看Python编译器的路径是否正确。 { "argv": [ "D:/MySoftwares/Anaconda3/envs/tfenv/bin/python", "-m", "ipykernel_launcher", "-f", "{connection_file}" ], "display_name": "Python 3", "language": "python" }3、到实际的文件夹中查看发现/envs/tfenv/下根本没有/bin子目录，python.exe直接就在/tfenv目录下，所以将上面路径中的/bin删去。 4、重启jupyter notebook，错误消失。
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