reraise(*exc_info) For anyone that still has this issue, one of the main causes of this is you are running out of storage. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in In new ML workspace you need to setup the computing resource to run the jupyter. I have tried to run Anaconda while my internet security software is disabled, but I still have problem with it :( ! from IPython.core.profiledir import ProfileDir This was referenced on Sep 22, 2020. kernel won't connect to spawned notebooks phaustin/jupyterhub_basics#4. [W 13:27:39.330 NotebookApp] Config option template_path not recognized by LenvsHTMLExporter. Find centralized, trusted content and collaborate around the technologies you use most. [D 19:47:32.352 NotebookApp] Connecting to: tcp://127.0.0.1:58644 What happened Your system might expose different port ranges in case you encounter issues with these values - so you might need to use port numbers closer to those in files in this directory. import zmq [W 15:39:33.524 NotebookApp] Notebook Untitled2.ipynb is not trusted Available kernels: File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 420, in _parse_sub [I 05:37:35.849 NotebookApp] KernelRestarter: restarting kernel (3/5), new random ports File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 687, in init [D 19:47:25.568 NotebookApp] Path notebook/css/override.css served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/notebook/css/override.css [W 13:16:25.087 NotebookApp] Config option template_path not recognized by LenvsLatexExporter. /usr/local/etc/jupyter/nbconfig/common.json File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error Kudos. [E 15:40:36.166 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: ea5eb9b2-7cc6-455b-8068-db5ce61ad768) import win32api from .core.application import Application [D 17:16:48.137 NotebookApp] Paths used for configuration of notebook: :D. Wonderful solutions. Now open the jupyter and select the "my_env" from Kernel option. Now i can connect to jupyter notebook again. [I 08:53:47.270 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_launcher.py", line 15, in AttributeError: partially initialized module 'string' has no attribute 'ascii_letters' (most likely due to a circular import) File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq_init.py", line 50, in Check your network connection or notebook server configuration. I run the Jupiter notebook on anaconda but the only thing that happen is appearing [*] near the code lines and I can. [D 21:03:42.408 NotebookApp] Loaded config file: /root/.jupyter/jupyter_notebook_config.json (base) C:\Users\stephen.bonacci>jupyter kernelspec list from string import Template /Users/lgouda/opt/anaconda3/etc/jupyter/nbconfig/tree.json File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in There might be relevant details there: https://discourse.jupyter.org/t/connection-to-the-notebook-server-could-not-be-established/10263/4. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq_init_.py", line 50, in [D 19:47:25.566 NotebookApp] Path base/images/favicon-notebook.ico served from /Users/lgouda/opt/anaconda3/lib/python3.9/site-packages/notebook/static/base/images/favicon-notebook.ico /etc/jupyter/jupyter_notebook_config.json After the upgrade to the latest VSC version on Linux Ubuntu 20.04 I cannot run any jupyter notebook. [W 13:27:42.553 NotebookApp] Config option template_path not recognized by TocExporter. [D 17:14:33.069 NotebookApp] Loaded config file: /root/.jupyter/jupyter_notebook_config.json File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in /etc/jupyter/nbconfig/notebook.json [D 17:14:33.505 NotebookApp] Paths used for configuration of jupyter_notebook_config: Have the exact same symptoms as well. File "C:\ProgramData\Anaconda3\lib\sre_compile.py", line 764, in compile [W 18:46:50.393 NotebookApp] Replacing stale connection: 7096c5db-c9da-466a-8db9-a9faf91a6a07:9cd069ef84f34a349e950ea328934ea9 [I 18:45:07.693 NotebookApp] http://localhost:8889/?token=be6849f2b18ec614cbc092dcdcb169a03f2d0d3998a4b8b1 import pandas.testing [D 19:47:26.176 NotebookApp] Paths used for configuration of notebook: from zmq import backend How do I use the Schwartzschild metric to calculate space curvature and time curvature seperately? File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 40, in raise source.error("incomplete escape %s" % escape, len(escape)) ImportError: DLL load failed: The specified module could not be found. ns = select_backend(first) from zmq import backend exec(code, run_globals) If not specified, the default browser will be determined by the "main", mod_spec) ns = select_backend(first) [D 21:03:47.413 NotebookApp] Path components/MathJax/jax/output/HTML-CSS/fonts/STIX-Web/fontdata.js served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/components/MathJax/jax/output/HTML-CSS/fonts/STIX-Web/fontdata.js "main", mod_spec) What I'm confused about is why this hasn't popped up until now. After installing version 5.1.1 I have this error. I don't know what the scope of nb-conda-kernels is - whether they span all conda envs or are specific to a particular env - but if you can uninstall them, you could try installing ipykernel and use that from Notebook. File "C:\ProgramData\Anaconda3\lib\runpy.py", line 87, in run_code File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client\connect.py", line 21, in kernel = self, :) Now connected to the kernel. The notebook will continue trying to reconnect. /root/.jupyter/jupyter_notebook_config.json Traceback (most recent call last): File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 27, in File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\json\decoder.py", line 355, in raw_decode [D 17:16:48.146 NotebookApp] Paths used for configuration of common: from ipykernel import kernelapp as app [D 19:47:26.059 NotebookApp] 304 GET /custom/custom.css (::1) 0.560000ms File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 40, in from .connect import * Thats all about solving issues related to kernel errors. ), but none of them has worked out. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_init.py", line 2, in from zmq import backend File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\jupyter_client_init.py", line 4, in This is consistent with the kernel not completely starting. [W 13:28:05.772 NotebookApp] KernelRestarter: restart failed [I 17:15:16.494 NotebookApp] http://localhost:8889/?token=b6d801352daf95e483d98ff5ec2bfd77f3a071b2fdd12352 Should there be nothing obvious from examining the value of PATHEXT, I suggest opening an issue in the IPython repo duplicating the contents of your comment above. [I 13:11:57.395 NotebookApp] or http://127.0.0.1:8888/?token=0b9c64d4cfe04a4d0a9f5ffbba1589b4d876b6f1c24f5980 raise value [C 17:49:22.278 NotebookApp], [I 17:49:22.528 NotebookApp] Accepting one-time-token-authenticated connection from ::1 [D 17:16:48.729 NotebookApp] Requesting kernel info from f4d9a8b3-ef52-4c5b-b675-82ec5c8d3669 [D 19:47:19.308 NotebookApp] Paths used for configuration of common: reraise(*exc_info) super(ZMQInteractiveShell, self).init_magics() [D 19:46:30.455 NotebookApp] Looking for jupyter_config in /Users/lgouda/.local/etc/jupyter raise value [E 19:48:26.314 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: b8710be7-c12c-44a5-a501-84bede249224) RANDS_CHARS = np.array(list(string.ascii_letters + string.digits), dtype=(np.str, 1)) [W 14:14:00.142 NotebookApp] 404 GET /api/kernels/b41f0b9f-e2dd-4a72-94f1-b1cdfc061c86/channels?session_id=c0d76dd1f83349d287576e3d1bee99fd (::1): Kernel does not exist: b41f0b9f-e2dd-4a72-94f1-b1cdfc061c86 File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 687, in init So, when I opened the Jupyter notebook, it connected with the DL kernel as before. I did this just now and it resolved. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise Default: 'disabled' import (constants, error, message, context, [D 21:03:42.406 NotebookApp] Looking for jupyter_notebook_config in /etc/jupyter Hello, self.init_magics() This solved for me!!! exec(code, run_globals) . [D 19:47:26.178 NotebookApp] Paths used for configuration of common: File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 810, in _parse Thanks to @Elena for discovering this issue. } Maybe you can have a try. Did you mean one of: extra_template_paths, template_name, template_paths? self.init_kernel() In my case, I created a virtual environment named "DL", but the notebook that should have run under this environment did not, so I uninstalled it from the notebook and installed it again with the commands: python -m ipykernel install --user --name=DL. raise source.error("incomplete escape %s" % escape, len(escape)) [I 20:16:39.876 NotebookApp] Serving notebooks from local directory: /Users/lgouda Change the browser from Chrome to Firefox, Change port number into something else than '8888', Uninstalled the Jupyter and re-installed it. This thread does not solve my problem. My operating system is a Windows 10 Pro and I am using the Anaconda 2022.10 with the base environment and no modifications. [W 07:53:43.884 NotebookApp] Replacing stale connection: 141bcf3c-2e22-45aa-a0cf-5a6e91946b02:8e34707500254cf68e9a67a6a7157d43 Check your network connection or notebook server [I 14:48:25.135 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). from zmq import backend [W 05:37:41.870 NotebookApp] KernelRestarter: restart failed File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in /root/.jupyter/jupyter_notebook_config.json has higher priority: { Traceback (most recent call last): I have use spyder3 for a long time and when I have updated, it gives "kernel error". [W 13:16:55.733 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. import (constants, error, message, context, I do most of my development and analysis on my e:drive, under the folder linux. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in Rename this file to something else, e.g. this problem aise when i tried installing jupyter widgets for tensorflow, import zmq import zmq File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in I have tried different ways found via google search (e.g. When I checked, I found that the Kernal was disconnected and was not able to connect. [I 08:53:30.834 NotebookApp] or http://127.0.0.1:8888/?token=022ac9c1bda06555311b7bb5a70b8d58cd5f0b6d5b8bc67b Now we will run this next line of code to merge the kernel to our virtual environment and install it for this user. rc = osapipe.close() return _compile(pattern, flags) [D 19:47:19.251 NotebookApp] 200 GET /static/components/create-react-class/index.js?v=894ad57246e682b4cfbe7cd5e408dcd6b38d06af4de4f3425991e2676fdc2ef1732cbd19903104198878ae77de12a1996de3e7da3a467fb226bdda8f4618faec (::1) 0.680000ms [D 17:17:48.734 NotebookApp] Getting buffer for f4d9a8b3-ef52-4c5b-b675-82ec5c8d3669 import jupyter_client File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\site-packages\jupyter_client\connect.py", line 494, in load_connection_file File "C:\ProgramData\Anaconda3\lib\runpy.py", line 193, in _run_module_as_main @DavisVickers glad to hear it helped. You can go ahead to restart Jupyter Notebook if you want to test out the changes immediately or you can install some of the valuable libraries you want in this new environment. self.execre = re.compile(r'(.). from zmq import backend [I 21:03:42.680 NotebookApp] JupyterLab application directory is /root/anaconda3/envs/test/share/jupyter/lab [W 13:16:55.363 NotebookApp] Config option template_path not recognized by TocExporter. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in Its very important to run the prompt as an administrator, this makes the system prepared to make necessary changes to your software. return _compile(pattern, flags) pip install ipywidgets used this to install, and then this jupyter nbextension enable --py widgetsnbextension, in the jupyter notebook itself.since my new kernels don't work. from ipykernel import kernelapp as app File "c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\lib\runpy.py", line 193, in run_module_as_main import jupyter_client import zmq File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client\connect.py", line 21, in /Users/lgouda/.local/etc/jupyter/nbconfig/notebook.json File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. [D 17:16:00.359 NotebookApp] 200 GET /api/config/tree?=1572916567934 (172.16.48.232) 9.88ms Traceback (most recent call last): Check your network connection or notebook server configuration. See if it works by itself then add modules as you go. Thanks! [D 17:16:48.866 NotebookApp] 304 GET /nbextensions/nb_conda/conda.css (172.16.48.232) 1.15ms File "C:\Users\user\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 87, in run_code "main", mod_spec) Data science involves the use of technical programming tools. [I 17:15:16.492 NotebookApp] JupyterLab application directory is /Users/sidodalpozzolo/opt/anaconda3/share/jupyter/lab File "c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\lib\site-packages\pandas\testing.py", line 5, in kernel = self, Googling that string, I don't find a whole lot, but the most promising is this, indicating it may be due to a firewall. /usr/local/etc/jupyter/jupyter_notebook_config.json reraise(*exc_info) import (constants, error, message, context, [I 15:39:06.465 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq_init.py", line 50, in user_ns=self.user_ns, from .connect import * dyld: Library not loaded: @rpath/libreadline.6.2.dylib File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\site-packages\jupyter_client\connect.py", line 494, in load_connection_file [W 13:17:44.582 NotebookApp] Timeout waiting for kernel_info reply from b165f980-2053-418e-ae80-4c5d9403e306 File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 2250, in init_magics File "C:\ProgramData\Anaconda3\lib\re.py", line 234, in compile super(ZMQInteractiveShell, self).init_magics() [D 21:03:46.584 NotebookApp] Path components/text-encoding/lib/encoding.js served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/components/text-encoding/lib/encoding.js when it is not running. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client_init.py", line 4, in If so, you can use that to experiment. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 27, in Traceback (most recent call last): I had the same issue where the kernel would simply not connect. from ipykernel import kernelapp as app File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 420, in _parse_sub [I 2022-10-14 13:28:24.202 ServerApp] panel.io.jupyter_server_extension | extension was successfully linked. Default: 'tcp' The directory is where you want all your present and future projects to be stored. [W 05:37:41.870 NotebookApp] Kernel 83d946a1-b7d0-468e-a149-394af4731e84 died, removing from map. [W 13:16:24.828 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. [W 13:16:54.152 NotebookApp] Config option template_path not recognized by LenvsSlidesExporter. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 40, in [D 17:16:36.170 NotebookApp] 200 GET /api/contents?type=directory&=1572916567942 (172.16.48.232) 5.11ms [D 21:04:47.704 NotebookApp] Connecting to: tcp://:39233 File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_launcher.py", line 15, in [D 21:03:42.407 NotebookApp] Loaded config file: /root/.jupyter/jupyter_notebook_config.py Do you have some kind of internet security software on your computer? RuntimeWarning: Enable tracemalloc to get the object allocation traceback File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\select.py", line 28, in select_backend Configurables, whose aliases are listed on the help line. [W 17:15:30.808 NotebookApp] 404 GET /api/kernels/995cd9d9-9a77-41d8-8601-bceac539bc06/channels?session_id=4d4313321c464fd7a15a4a9ea8ef0cef (::1) 10.09ms referer=None Did you mean one of: extra_template_paths, template_name, template_paths? [D 17:16:48.252 NotebookApp] Path components/MathJax/jax/output/HTML-CSS/fonts/STIX-Web/fontdata.js served from /root/anaconda3/envs/my-rdkit-env/lib/python3.6/site-packages/notebook/static/components/MathJax/jax/output/HTML-CSS/fonts/STIX-Web/fontdata.js raise value File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\magic.py", line 405, in register File "c:\users\kimish.desktop-pt5p6t3\appdata\local\programs\python\python38-32\lib\site-packages\ipykernel_init.py", line 2, in File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 194, in run_module_as_main

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