on full configurables, see '--help-all'. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 87, in run_code rev2023.1.17.43168. [D 17:14:33.073 NotebookApp] [nb_conda_kernels] refreshing conda info Please try the steps listed here: #5689 (comment) - which was referenced in the #5577 (comment) I linked above. File "/Users/vishnuc/anaconda3/lib/python3.7/site-packages/tornado/websocket.py", line 956, in accept_connection Default: 'tcp' [D 19:47:26.086 NotebookApp] 200 GET /static/components/MathJax/config/Safe.js?V=2.7.9 (::1) 1.120000ms [D 17:16:00.918 NotebookApp] Path nb_conda/tab.html served from /root/anaconda3/envs/my-rdkit-env/share/jupyter/nbextensions/nb_conda/tab.html dyld: Library not loaded: @rpath/libreadline.6.2.dylib [I 2022-10-14 13:28:34.832 ServerApp] Kernel started: 0c7e8334-2d31-41b8-97d0-2d8efa8d9630 issue with websocket and tornado amalic/Jupyterlab#5. "NotebookApp": { File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 663, in launch_instance Traceback (most recent call last): exec(code, run_globals) [D 21:03:46.323 NotebookApp] Path base/images/favicon-notebook.ico served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/base/images/favicon-notebook.ico `C:\Users\This-PC>jupyter notebook - debug . File "C:\Anaconda\Lib\site-packages\zmq\backend_init_.py", line 40, in File "C:\ProgramData\Anaconda3\lib\site-packages\ipykernel\kernelapp.py", line 447, in init_kernel File "/Users/vishnuc/anaconda3/lib/python3.7/site-packages/notebook/services/kernels/handlers.py", line 274, in open You're probably getting bit by the recent tornado 6 release and the flurry [W 2022-10-14 13:28:49.915 ServerApp] Kernel 0c7e8334-2d31-41b8-97d0-2d8efa8d9630 died, removing from map. [D 17:16:00.916 NotebookApp] Path nb_conda/conda.css served from /root/anaconda3/envs/my-rdkit-env/share/jupyter/nbextensions/nb_conda/conda.css [W 15:57:45.158 NotebookApp] Replacing stale connection: ea5eb9b2-7cc6-455b-8068-db5ce61ad768:a10207319f184c1bace6c946609970b2 File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 687, in init File "C:\Anaconda\Lib\site-packages\ipykernel_launcher.py", line 15, in [D 19:46:30.455 NotebookApp] Looking for jupyter_notebook_config in /etc/jupyter [D 17:14:33.069 NotebookApp] Looking for jupyter_notebook_config in /root File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\select.py", line 28, in select_backend File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in [I 15:39:39.108 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports [D 19:48:26.316 NotebookApp] Websocket closed b8710be7-c12c-44a5-a501-84bede249224:1a5b662a117e47d981bb76f1f6fefc12 Can I (an EU citizen) live in the US if I marry a US citizen? I would start with this #5024 (comment). I am having macos Monterey if it matters. File "C:\Anaconda\Lib\site-packages\zmq\backend\select.py", line 28, in select_backend This caused errors similar to the others in the thread above. [D 17:14:33.068 NotebookApp] Loaded config file: /root/.jupyter/jupyter_notebook_config.py File "C:\Users\jamil\anaconda3\envs\gpu2\lib\runpy.py", line 193, in run_module_as_main File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\json\decoder.py", line 355, in raw_decode I reviewed those previous posts and instructions and tried it and IT DOES NOT WORK! [D 19:46:30.455 NotebookApp] Looking for jupyter_config in /Users/lgouda from . not nested and not items)) File "C:\Anaconda\Lib\site-packages\jupyter_client\connect.py", line 21, in Hi @kirat89 - I recommend starting with these instructions (#4980 (comment)) from within your py3tf2.0 environment. Fixed the notebook. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\cython_init.py", line 6, in Moreover on typing jupyter kernelspec list I ve got this File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\select.py", line 28, in select_backend File "C:\Anaconda\Lib\site-packages\ipykernel\connect.py", line 18, in using 6). Traceback (most recent call last): [C 00:05:56.683 NotebookApp] Invalid argument: '-' I had the same issue where the kernel would simply not connect. exec(code, run_globals) File "C:\Users\kimish.DESKTOP-PT5P6T3\string.py", line 1, in mod = import(name, fromlist=public_api) File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\json_init.py", line 346, in loads ns = select_backend(first) raise value self.load_connection_file() File "C:\ProgramData\Anaconda3\lib\site-packages\ipykernel_launcher.py", line 16, in [D 21:03:46.734 NotebookApp] Path custom.css served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/custom/custom.css This usually indicates a dependency issue or some runtime anomaly that occurs at startup. Did you mean one of: extra_template_paths, template_name, template_paths? Choices: ['tcp', 'ipc'] File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 40, in (%s)$' % winext,re.IGNORECASE) self.init_kernel() Did you mean one of: extra_template_paths, template_name, template_paths? I start a jupyter-lab with a few notebooks. [D 19:47:26.181 NotebookApp] Path components/MathJax/extensions/TeX/newcommand.js served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/components/MathJax/extensions/TeX/newcommand.js This is consistent with the kernel not completely starting. @takluyver @blink1073 @Carreau. Thanks for contributing an answer to Stack Overflow! [D 17:14:33.068 NotebookApp] Looking for jupyter_notebook_config in /root/.jupyter 1 Class class IPython.kernel.connect.ConnectionFileMixin (**kwargs) . import pandas.testing from .connect import * Kernel does not exist: b41f0b9f-e2dd-4a72-94f1-b1cdfc061c86 dyld: Library not loaded: @rpath/libreadline.6.2.dylib Reason: image not found File "c:\Users\stephen.bonacci.vscode\extensions\ms-python.python-2022.16.1\pythonFiles\lib\python\debugpy\launcher/../..\debugpy\common\messaging.py", line 19, in The directory to use for notebooks and kernels. ( path : jupyter -> kernel -> change kernel -> my_env ). File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend_init_.py", line 40, in [I 2021-08-31 13:11:57.374 LabApp] JupyterLab extension loaded from C:\Users\Lenovo\anaconda3\lib\site-packages\jupyterlab from ipykernel import kernelapp as app Is there a way to run Jupyter Notebooks Without Anaconda? Try reinstalling it to version 5.1.1. import (constants, error, message, context, File "C:\Anaconda\Lib\site-packages\jupyter_client_init.py", line 4, in raise value Have a question about this project? File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\select.py", line 28, in select_backend /Users/lgouda/.jupyter/jupyter_notebook_config.json File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 27, in return run_code(code, main_globals, None, exec(code, run_globals) [D 21:03:42.407 NotebookApp] Looking for jupyter_notebook_config in /root/anaconda3/envs/test/etc/jupyter File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 810, in _parse [D 17:16:47.687 NotebookApp] 200 GET /notebooks/test_dir/rdkit.ipynb (172.16.48.232) 319.09ms [D 19:47:19.262 NotebookApp] 200 GET /static/tree/js/main.min.js?v=273b8aef15d01395b404622cc721aafb91ec3d66772bc9219b63928a7cdaa42d0ad64275548080357561e793524dea45b1ab6c147a934b451b2bb82219c792b3 (::1) 2.660000ms File "C:\Users\user\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 87, in run_code import (constants, error, message, context, [IPKernelApp] ERROR | Failed to load connection file: 'C:\Users\jsdha\AppData\Roaming\jupyter\runtime\kernel-83d946a1-b7d0-468e-a149-394af4731e84.json' return run_code(code, main_globals, None, p = sre_compile.compile(pattern, flags) Traceback (most recent call last): exec(code, run_globals) Pls help me out here. Will the below command help? File "C:\ProgramData\Anaconda3\lib\re.py", line 234, in compile File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\select.py", line 28, in select_backend File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in Debug output belowas a novice is there anything that sticks out? [D 17:16:48.136 NotebookApp] Paths used for configuration of notebook: Traceback (most recent call last): environment variable to override it. exec(code, run_globals) [I 17:15:16.494 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). However, looking at the applicable code it appears to be trying to decipher the value of your PATHEXT environment variable and I suggest following the instructions starting with this comment. import zmq File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in Just seems weird that jupyter won't work with tornado 6.0 and it's installed by default. Once the these three points are addressed I think we should be able to move forward on troubleshooting your original issue. from zmq import backend File "C:\ProgramData\Anaconda3\lib\runpy.py", line 87, in run_code File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 194, in run_module_as_main Default: '' [W 13:43:50.898 NotebookApp] KernelRestarter: restart failed File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 810, in _parse Do you have some kind of internet security software on your computer? [D 19:47:25.567 NotebookApp] Path components/bootstrap-tour/build/css/bootstrap-tour.min.css served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/components/bootstrap-tour/build/css/bootstrap-tour.min.css Thanks! Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. [D 21:03:47.112 NotebookApp] 200 GET /custom/custom.js?v=20191105210342 (172.16.48.232) 1.95ms return loads(fp.read(), delete all the python files in the same directory where notebook is installed or move them to some other folder. I got this problem right now. But this was solved by moving the required file to my working directory. In ML Studio, when I create a notebook the top of my screen says "Jupyter kernel error" in red. [D 19:47:26.229 NotebookApp] 200 GET /static/components/MathJax/extensions/Safe.js?V=2.7.9 (::1) 2.390000ms meth = getattr(km, 'connect' + channel) ( path : jupyter -> kernel -> change kernel -> my_env ). I've ported code working on an older Macbook to a new Macbook Pro M1. This time it will work totally fine whether you open it from Prompt or Navigator. what's the difference between "the killing machine" and "the machine that's killing". [I 13:43:20.815 NotebookApp] http://localhost:8888/?token=e680df78a5153f6708f7ad4756ce5a506a78a617b05fc71f [I 17:15:16.414 NotebookApp] The port 8888 is already in use, trying another port. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_init.py", line 2, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\select.py", line 28, in select_backend [W 13:16:55.594 NotebookApp] Config option template_path not recognized by LenvsHTMLExporter. return run_code(code, main_globals, None, dyld: Library not loaded: @rpath/libreadline.6.2.dylib Did you mean one of: extra_template_paths, template_name, template_paths? File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in This config will be passed to ServerApp. /etc/jupyter/jupyter_notebook_config.json reraise(*exc_info) return method(app, *args, **kwargs) inst = cls(*args, **kwargs) But finally downgrading Jupyterlab and Jupyterhub to (approximately) the original version numbers worked for me: According to the command outputs, the following packages versions were actually applied: And after restarting jupyterhub, all my kernels were working again. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 87, in run_code [D 17:16:00.768 NotebookApp] 200 GET /api/terminals?=1572916567936 (172.16.48.232) 399.78ms [I 19:46:31.318 NotebookApp] Jupyter Notebook 6.4.8 is running at: raise source.error("incomplete escape %s" % escape, len(escape)) @danielgo I've got page/browser language set to en-us ;/. File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error [C 08:53:30.886 NotebookApp], [I 08:53:41.377 NotebookApp] Creating new notebook in File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\magics\osm.py", line 52, in init File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error [D 17:16:47.681 NotebookApp] Path components/text-encoding/lib/encoding.js served from /root/anaconda3/envs/my-rdkit-env/lib/python3.6/site-packages/notebook/static/components/text-encoding/lib/encoding.js ns = select_backend(first) Thanks. [W 13:28:05.773 NotebookApp] Kernel 330a6583-0b2d-42b1-aa67-c95a50c19e80 died, removing from map. cleanup_connection_file . Did you mean one of: extra_template_paths, template_name, template_paths? File "C:\Users\user\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 87, in run_code File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\cython_init.py", line 6, in I am also facing this issue, base kernel is working fine, but the new envs I create are not working. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in [D 21:03:46.206 NotebookApp] Using contents: services/contents [D 19:47:19.309 NotebookApp] 200 GET /api/terminals?=1653187639286 (::1) 0.950000ms Traceback (most recent call last): [D 19:46:30.455 NotebookApp] Looking for jupyter_config in /Users/lgouda/.jupyter Did you mean one of: extra_template_paths, template_name, template_paths? ImportError: DLL load failed while importing error: The specified module could not be found. import (constants, error, message, context, Also uploading the pip packages: pip list --local. Did you mean one of: extra_template_paths, template_name, template_paths? [I 13:18:29.272 NotebookApp] Saving file at /Untitled.ipynb . My compute is running but I cannot connect to any of the kernel. At this point, you should connect to your existing kernel. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_init.py", line 2, in mod = import(name, fromlist=public_api) from .connect import * import jupyter_client import zmq (172.16.48.232) 98.36ms notebook. "main", mod_spec) [D 21:03:47.389 NotebookApp] Connecting to: tcp://:48108 [W 01:44:00.165 NotebookApp] 404 GET /api/kernels/0f138dea-b642-4fbf-8b5a-a22f979fb603/channels?session_id=756a070714d04866bc9f5c7f600db245 (::1) 16983.47ms referer=None How can this box appear to occupy no space at all when measured from the outside? Also, I think my problem is not about jupyter. ImportError: DLL load failed: The specified module could not be found. delete all the python files in the same directory where notebook is installed or move them to some other folder. from .connect import * This is where I will work on further libraries and other analytical projects. [C 18:45:07.698 NotebookApp], [I 18:45:11.695 NotebookApp] Creating new notebook in from zmq import backend File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 40, in [D 19:47:26.174 NotebookApp] Paths used for configuration of notebook: [D 19:47:26.230 NotebookApp] Path jupyterlab-plotly/extension.js served from /Users/lgouda/opt/anaconda3/share/jupyter/nbextensions/jupyterlab-plotly/extension.js [E 13:28:50.502 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: 330a6583-0b2d-42b1-aa67-c95a50c19e80) [I 21:03:42.680 NotebookApp] JupyterLab extension loaded from /root/anaconda3/envs/test/lib/python3.6/site-packages/jupyterlab [D 21:03:47.380 NotebookApp] Starting kernel: ['/root/anaconda3/envs/test/bin/python', '-m', 'ipykernel_launcher', '-f', '/run/user/0/jupyter/kernel-425ab218-76c9-4bb0-b6e2-fb3b90565c03.json'] File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise [W 13:16:24.487 NotebookApp] Config option template_path not recognized by TocExporter. Traceback (most recent call last): ImportError: DLL load failed while importing error: The specified module could not be found. The issue appeared after installing Jupytext with the following command: which non only installed Jupytext but also upgraded my system to Jupyterlab 2.2.9 and Jupyterhub 1.2.2 (among other packages updates). You need to repeat the pyzmq installation - which can be a little finicky based on past support experiences. If it can help @kevin-bates - I ran into similar issues as above, and eventually got to @fedeturi's error. reraise(*exc_info) import zmq m.PylabMagics, m.ScriptMagics, If defined, [I 14:48:25.134 NotebookApp] http://localhost:8888/?token=ff0ac09771a1203a76ab291a8d89d8677fcc932075140e7d Traceback (most recent call last): File "C:\Anaconda\Lib\site-packages\ipykernel_launcher.py", line 15, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 40, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in (If It Is At All Possible). I have Python 3.7.1 installed. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\jupyter_client\connect.py", line 21, in

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