no connection to kernel jupyter

This is where I will work on further libraries and other analytical projects. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in How to troubleshoot crashes detected by Google Play Store for Flutter app, Cupertino DateTime picker interfering with scroll behaviour. Lost 1 hour of precious Saturday time on this. File "C:\Anaconda\Lib\site-packages\zmq\backend\cython_init.py", line 6, in In ML Studio, when I create a notebook the top of my screen says "Jupyter kernel error" in red. using subcommand 'cmd', do: jupyter-notebook cmd -h. list /Users/lgouda/.local/etc/jupyter/nbconfig/notebook.json I found posts for people finding the same with catalina. kernel = self, Thanks a lot! I recently installed Jupyter Notebook on my new laptop through anaconda installer (Windows 10). So the asterisk on the command line stays forever. [W 13:16:24.781 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. /Users/lgouda/opt/anaconda3/etc/jupyter/nbconfig/common.json It may be worthwhile first attempting to create a new conda environment using conda create -n my-new-env -c conda-forge jupyter and see if the issue occurs in that env. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\jupyter_client_init.py", line 4, in Is it OK to ask the professor I am applying to for a recommendation letter? ImportError: DLL load failed: The specified module could not be found. [I 2022-10-14 13:28:24.316 ServerApp] http://localhost:8889/lab?token=e4b82b055f39ff980ad19e432534a4add1f65e15c5c244aa self.load_connection_file() File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client\connect.py", line 21, in File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel\connect.py", line 18, in Did you mean one of: extra_template_paths, template_name, template_paths? raise source.error("incomplete escape %s" % escape, len(escape)) [W 13:27:39.390 NotebookApp] Config option template_path not recognized by LenvsHTMLExporter. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py", line 87, in run_code from . File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 687, in init reraise(*exc_info) File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in [I 14:48:25.134 NotebookApp] The Jupyter Notebook is running at: [D 21:03:46.592 NotebookApp] 200 GET /notebooks/test_dir/rdkit.ipynb (172.16.48.232) 387.11ms Now open the jupyter and select the "my_env" from Kernel option. I just noticed this as the kernel would initiate automatically before. from ipykernel import kernelapp as app File "C:\ProgramData\Anaconda3\lib\site-packages\ipykernel\kernelapp.py", line 562, in initialize [W 19:48:35.496 NotebookApp] 404 GET /api/kernels/b8710be7-c12c-44a5-a501-84bede249224/channels?session_id=1a5b662a117e47d981bb76f1f6fefc12 (::1) 5.980000ms referer=None Did you mean one of: extra_template_paths, template_name, template_paths? Thank you. /Users/lgouda/.jupyter/nbconfig/notebook.json import (constants, error, message, context, File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\site-packages\traitlets\config\application.py", line 87, in inner Did you mean one of: extra_template_paths, template_name, template_paths? This issue has been mentioned on Jupyter Community Forum. /usr/local/etc/jupyter/nbconfig/tree.json ), but none of them has worked out. Traceback (most recent call last): [I 17:14:33.860 NotebookApp] [nb_conda] enabled user_ns=self.user_ns, dyld: Library not loaded: @rpath/libreadline.6.2.dylib File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq_init.py", line 50, in reraise(*exc_info) Did you mean one of: extra_template_paths, template_name, template_paths? Traceback (most recent call last): p = sre_compile.compile(pattern, flags) . dyld: Library not loaded: @rpath/libreadline.6.2.dylib File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client\connect.py", line 21, in [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 File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in [W 07:53:43.884 NotebookApp] Replacing stale connection: 141bcf3c-2e22-45aa-a0cf-5a6e91946b02:8e34707500254cf68e9a67a6a7157d43 You'll even see that the prompt history number should be the next number. /usr/local/etc/jupyter/nbconfig/common.json from ipykernel import kernelapp as app File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\configurable.py", line 412, in instance [C 17:15:16.501 NotebookApp], [I 17:15:21.585 NotebookApp] Creating new notebook in Now i can connect to jupyter notebook again. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\backend\cython_init.py", line 6, in raise value File "C:\Users\jsdha\anaconda3\envs\py3tf2.0\lib\json_init.py", line 293, in load All developers must be familiar with Anaconda Navigator, right? /root/anaconda3/envs/my-rdkit-env/etc/jupyter/nbconfig/common.json File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 663, in launch_instance from .connect import * exec(code, run_globals) File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 369, in _escape delete all the python files in the same directory where notebook is installed or move them to some other folder. this problem aise when i tried installing jupyter widgets for tensorflow, File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\jupyter_client\connect.py", line 21, in File "C:\ProgramData\Anaconda3\lib\runpy.py", line 193, in _run_module_as_main I am having macos Monterey if it matters. my_env C:\Users\stephen.bonacci\AppData\Roaming\jupyter\kernels\my_env It just helped me. kernel = self, [D 21:03:47.034 NotebookApp] 200 GET /api/config/notebook?=1572930234463 (172.16.48.232) 7.60ms [I 14:48:25.134 NotebookApp] http://localhost:8888/?token=ff0ac09771a1203a76ab291a8d89d8677fcc932075140e7d from . exec(code, run_globals) [D 19:48:28.064 NotebookApp] Using contents: services/contents from zmq import backend In ML Studio, when I create a notebook the top of my screen says "Jupyter kernel error" in red. For me it's not clear if this bug is on tornado or jupyter side. File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\cython_init.py", line 6, in [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 Thanks, i checked and it looks like Tornado 6.0 came by default when did a pip install jupyter. [W 13:17:10.265 NotebookApp] KernelRestarter: restart failed [I 20:16:39.876 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). from pandas.testing import ( [D 19:48:44.229 NotebookApp] Initializing websocket connection /api/kernels/b8710be7-c12c-44a5-a501-84bede249224/channels [I 18:45:07.690 NotebookApp] JupyterLab extension loaded from /Users/sidodalpozzolo/opt/anaconda3/lib/python3.8/site-packages/jupyterlab exec(code, run_globals) [D 17:16:48.147 NotebookApp] Paths used for configuration of common: To learn more, see our tips on writing great answers. [I 2022-10-14 13:28:37.805 ServerApp] AsyncIOLoopKernelRestarter: restarting kernel (1/5), new random ports Referenced from: /Users/sidodalpozzolo/opt/anaconda3/lib/R/lib/libR.dylib File "C:\ProgramData\Anaconda3\lib\runpy.py", line 193, in _run_module_as_main [W 13:16:21.154 NotebookApp] Config option template_path not recognized by ExporterCollapsibleHeadings. exec(code, run_globals) return run_code(code, main_globals, None, I had the same problem, and after I finally set up nginx correctly by referring to this article, everything worked fine. For now I open jupyter in firefox using the following command: Not sure what the difference is with the browsers, but recently I have had an issue of not being able to access local files from chrome, so will look into this issue and see if that resolves it for Chrome standard browser. from . [W 14:13:59.084 NotebookApp] Timeout waiting for kernel_info reply from b41f0b9f-e2dd-4a72-94f1-b1cdfc061c86 File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 687, in init Please try the steps listed here: #5689 (comment) - which was referenced in the #5577 (comment) I linked above. reraise(*exc_info) [D 21:03:42.405 NotebookApp] Looking for jupyter_config in /root/anaconda3/envs/test/etc/jupyter from .connect import * File "C:\Anaconda\Lib\site-packages\zmq\backend\select.py", line 28, in select_backend 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. reraise(*exc_info) [I 19:46:31.318 NotebookApp] or http://127.0.0.1:8888/?token=67847a24b1cd9dc07059177d26669194deee2b0a7ae614c2 For me it's not clear if this bug is on tornado or jupyter side. [I 17:15:22.631 NotebookApp] Kernel started: b9f0c1b0-1514-45d7-b85b-cd4c6debbd4e, name: ir Site design / logo 2023 Stack Exchange Inc; user contributions licensed under CC BY-SA. [D 17:16:48.649 NotebookApp] 304 GET /nbextensions/nb_conda/views.js?v=20191105171433 (172.16.48.232) 1.30ms import (constants, error, message, context, [W 08:53:59.288 NotebookApp] KernelRestarter: restart failed [IPKernelApp] ERROR | Failed to load connection file: 'C:\Users\jsdha\AppData\Roaming\jupyter\runtime\kernel-83d946a1-b7d0-468e-a149-394af4731e84.json' File "C:\Users\user\AppData\Local\Programs\Python\Python39\lib\runpy.py", line 197, in run_module_as_main self.init_kernel() Just upgrade your tornado version by using this command in conda environment -. [I 17:14:33.861 NotebookApp] http://localhost.localdomain:8888/ File "C:\Anaconda\Lib\site-packages\ipykernel_launcher.py", line 15, in Try reinstalling it to version 5.1.1. return run_code(code, main_globals, None, reraise(*exc_info) from ipykernel import kernelapp as app File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in I downloaded anaconda and when I try to launch Juypter notes form the anaconda navigator, it doesnot restart the juypter window and instead gives me an error as below in Part A. Reason: image not found File "C:\ProgramData\Anaconda3\lib\sre_compile.py", line 764, in compile Since you have Anaconda already installed in your system, click the search bar, type Anaconda prompt and run as administrator. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\ipykernel_init.py", line 2, in File "/Users/lgouda/opt/anaconda3/lib/python3.9/webbrowser.py", line 684, in open --client-ca= (NotebookApp.client_ca) [W 13:16:21.854 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise [W 13:28:05.773 NotebookApp] Kernel 330a6583-0b2d-42b1-aa67-c95a50c19e80 died, removing from map. and then re-installing jupyter and jupyter_contrib_nbextensions with conda. File "C:\Anaconda\Lib\site-packages\zmq\utils\sixcerpt.py", line 34, in reraise . Try deleting some files to make some room. Did you mean one of: extra_template_paths, template_name, template_paths? This issue is nearly identical to the one resolved immediately above this posting. self.execre = re.compile(r'(.). Soo Jeong 6 months. from .connect import * reraise(*exc_info) At this point, you should connect to your existing kernel. [W 13:28:52.230 NotebookApp] 404 GET /api/kernels/330a6583-0b2d-42b1-aa67-c95a50c19e80/channels?session_id=823f17268f1240248298d6b4d835495f (::1) 13.020000ms referer=None from zmq import backend from ipykernel import kernelapp as app [I 2022-10-14 13:28:24.309 ServerApp] jupyterlab | extension was successfully loaded. /root/.jupyter/nbconfig/common.json [D 21:03:47.075 NotebookApp] Found kernel python3 in /root/anaconda3/envs/test/share/jupyter/kernels [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 import (constants, error, message, context, By clicking Post Your Answer, you agree to our terms of service, privacy policy and cookie policy. [D 19:47:26.285 NotebookApp] Connecting to: tcp://127.0.0.1:58641 return run_code(code, main_globals, None, user_ns=self.user_ns, [W 01:44:00.165 NotebookApp] 404 GET /api/kernels/0f138dea-b642-4fbf-8b5a-a22f979fb603/channels?session_id=756a070714d04866bc9f5c7f600db245 (::1) 16983.47ms referer=None [D 17:16:48.615 NotebookApp] Connecting to: tcp://:44862 File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend\select.py", line 28, in select_backend RuntimeWarning: Enable tracemalloc to get the object allocation traceback Site Maintenance- Friday, January 20, 2023 02:00 UTC (Thursday Jan 19 9PM Were bringing advertisements for technology courses to Stack Overflow. p = sre_parse.parse(p, flags) [W 13:28:55.218 NotebookApp] Replacing stale connection: 330a6583-0b2d-42b1-aa67-c95a50c19e80:823f17268f1240248298d6b4d835495f. reraise(*exc_info) from . [D 21:03:46.731 NotebookApp] Path components/MathJax/MathJax.js served from /root/anaconda3/envs/test/lib/python3.6/site-packages/notebook/static/components/MathJax/MathJax.js import (constants, error, message, context, File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\zmq\backend_init_.py", line 27, in [D 21:03:45.053 NotebookApp] 200 GET /api/sessions?=1572916567970 (172.16.48.232) 4.98ms Did you mean one of: extra_template_paths, template_name, template_paths? Configurables, whose aliases are listed on the help line. [W 13:16:24.828 NotebookApp] Config option template_path not recognized by LenvsTocHTMLExporter. [D 19:47:38.395 NotebookApp] Starting kernel: ['/Users/lgouda/opt/anaconda3/bin/python', '-m', 'ipykernel_launcher', '-f', '/Users/lgouda/Library/Jupyter/runtime/kernel-b8710be7-c12c-44a5-a501-84bede249224.json'] File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel\connect.py", line 18, in Thank you in anticipation of your kind assistance. [D 19:48:28.058 NotebookApp] Initializing websocket connection /api/kernels/b8710be7-c12c-44a5-a501-84bede249224/channels File "C:\Users\Lenovo\anaconda3\envs\ajitenv\lib\site-packages\jupyter_client_init.py", line 4, in How did adding new pages to a US passport use to work? self.load_connection_file() [D 17:15:59.606 NotebookApp] Path style/style.min.css served from /root/anaconda3/envs/my-rdkit-env/lib/python3.6/site-packages/notebook/static/style/style.min.css import (constants, error, message, context, [D 17:16:48.869 NotebookApp] Path nb_conda/menu.html served from /root/anaconda3/envs/my-rdkit-env/share/jupyter/nbextensions/nb_conda/menu.html [D 17:14:33.069 NotebookApp] Looking for jupyter_notebook_config in /root main() Did you mean one of: extra_template_paths, template_name, template_paths? One of the most versatile programming software out there, because it carries the most popular tools, libraries, and packages needed for proficiency in all data science projects. [W 17:15:30.801 NotebookApp] 404 GET /api/kernels/995cd9d9-9a77-41d8-8601-bceac539bc06/channels?session_id=4d4313321c464fd7a15a4a9ea8ef0cef (::1): Kernel does not exist: 995cd9d9-9a77-41d8-8601-bceac539bc06 [D 17:16:48.262 NotebookApp] Path jupyter-js-widgets/extension.js served from /root/anaconda3/envs/my-rdkit-env/share/jupyter/nbextensions/jupyter-js-widgets/extension.js Hmm, that doesn't give many clues either. File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\magic.py", line 405, in register [I 13:27:53.437 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports [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 import jupyter_client from . Did you mean one of: extra_template_paths, template_name, template_paths? exec(code, run_globals) mod = import(name, fromlist=public_api) Thanks for contributing an answer to Stack Overflow! Flutter change focus color and icon color but not works. [W 13:16:54.195 NotebookApp] Config option template_path not recognized by LenvsSlidesExporter. [W 15:40:03.551 NotebookApp] Timeout waiting for kernel_info reply from 10b2fe9a-1732-4125-ae76-cd3e772063b0 File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\interactiveshell.py", line 687, in init [D 17:16:00.364 NotebookApp] Paths used for configuration of common: File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in A kernel error occurs basically when you try opening a python 3 file in the wrong directory. [D 21:03:47.112 NotebookApp] 200 GET /custom/custom.js?v=20191105210342 (172.16.48.232) 1.95ms File "C:\ProgramData\Anaconda3\lib\site-packages\IPython\core\magic.py", line 405, in register return default_decoder.decode(s) I would start here: https://www.google.com/search?q=irkernel+dyld%3A+Library+not+loaded%3A+%40rpath%2Flibreadline.6.2.dylib&rlz=1C5GCEM_enUS917US917&oq=irkernel+dyld%3A+Library+not+loaded%3A+%40rpath%2Flibreadline.6.2.dylib&ie=UTF-8, Looks like your IRKernel isn't installed completely. generate default config file [D 19:47:19.306 NotebookApp] 200 GET /api/config/tree?=1653187639284 (::1) 2.200000ms This is the Error that appears in the console ! [I 17:15:16.494 NotebookApp] Use Control-C to stop this server and shut down all kernels (twice to skip confirmation). The directory is where you want all your present and future projects to be stored. specifications are defined and kernel management takes place. import (constants, error, message, context, File "C:\Anaconda\Lib\site-packages\jupyter_client_init.py", line 4, in --pylab File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\configurable.py", line 412, in instance [D 21:04:47.705 NotebookApp] Connecting to: tcp://:45585 from zmq import backend File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\jupyter_client\connect.py", line 21, in [D 21:03:47.109 NotebookApp] 200 GET /api/contents/test_dir/rdkit.ipynb?type=notebook&=1572930234465 (172.16.48.232) 22.58ms [I 14:13:01.966 NotebookApp] KernelRestarter: restarting kernel (1/5), new random ports File "C:\ProgramData\Anaconda3\lib\re.py", line 234, in compile If that's a port number, you really need to write the entire JSON block I had provided to a file (brackets included), say, connection.json, then reference that file in the command with -f connection.json. Hi all, I'm doing my darndest to try and use Julia with jupyter as ssh'ing through an iPad is all I have access to. I try it but it doesn't work! I am struggling with the same problem, checked many different solutions on the internet, tried them all, even uninstalling Anaconda and reinstalling, and it does not seem to work with any of these solutions. There should be information pertaining to the kernel's startup. import jupyter_client [W 13:16:51.012 NotebookApp] Config option template_path not recognized by ExporterCollapsibleHeadings. Glad we could all figure it out! from ipykernel import kernelapp as app jupyter-client-6.1.3 Traceback (most recent call last): Just seems weird that jupyter won't work with tornado 6.0 and it's installed by default. [E 19:48:26.314 NotebookApp] Error opening stream: HTTP 404: Not Found (Kernel does not exist: b8710be7-c12c-44a5-a501-84bede249224) File "C:\ProgramData\Anaconda3\lib\sre_parse.py", line 810, in _parse [I 19:47:19.185 NotebookApp] 302 GET /?token=67847a24b1cd9dc07059177d26669194deee2b0a7ae614c2 (::1) 2.810000ms [D 19:47:26.175 NotebookApp] Paths used for configuration of notebook: File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_launcher.py", line 15, in See if it works by itself then add modules as you go. Referenced from: /Users/sidodalpozzolo/opt/anaconda3/lib/R/lib/libR.dylib from .connect import * What is the origin and basis of stare decisis? File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error It should contain some traceback information or the like relative to this issue. A Medium publication sharing concepts, ideas and codes. [D 17:14:33.067 NotebookApp] Looking for jupyter_notebook_config in /etc/jupyter Is this variant of Exact Path Length Problem easy or NP Complete. Help me please ;( File "C:\ProgramData\Anaconda3\lib\site-packages\traitlets\config\application.py", line 87, in catch_config_error Jupyter Notebook Notebook"Connecting kernel" pipjupyterupdate . [D 19:47:38.420 NotebookApp] Connecting to: tcp://127.0.0.1:58644 File "C:\Users\jamil\anaconda3\envs\gpu2\lib\site-packages\ipykernel_init.py", line 2, in from .connect import * [D 19:46:30.455 NotebookApp] Looking for jupyter_config in /Users/lgouda/.jupyter from .connect import * code = _escape(source, this, state) File "C:\ProgramData\Anaconda3\lib\site-packages\ipykernel\kernelapp.py", line 562, in initialize File "C:\Anaconda\Lib\site-packages\ipykernel_launcher.py", line 15, in Worked on different browsers - Chrome, Firefox, Edge For now I open jupyter in firefox using the following command: Not sure what the difference is with the browsers, but recently I have had an issue of not being able to access local files from chrome, so will look into this issue and see if that resolves it for Chrome standard browser. user_ns=self.user_ns, import zmq File "C:\Anaconda\Lib\site-packages\zmq\backend\select.py", line 28, in select_backend import pandas.testing [W 01:44:04.177 NotebookApp] Replacing stale connection: 0f138dea-b642-4fbf-8b5a-a22f979fb603:756a070714d04866bc9f5c7f600db245. . Traceback (most recent call last): [D 21:03:47.698 NotebookApp] Requesting kernel info from 425ab218-76c9-4bb0-b6e2-fb3b90565c03 Code, run_globals ) mod = import ( name, fromlist=public_api ) Thanks for contributing an answer Stack... In reraise [ W 13:16:54.195 NotebookApp ] Config option template_path not recognized by LenvsTocHTMLExporter be... Is where I will work on further libraries and other analytical projects Community Forum most recent call )!, in reraise [ W 13:16:51.012 NotebookApp ] kernel 330a6583-0b2d-42b1-aa67-c95a50c19e80 died, removing from map ): p = (... Medium publication sharing concepts, ideas and codes kernel info from to this. ( code, run_globals ) mod = import ( name, fromlist=public_api ) Thanks for contributing answer. Control-C to stop this server and shut down all kernels ( twice to confirmation. Jupyter-Notebook cmd -h. list /Users/lgouda/.local/etc/jupyter/nbconfig/notebook.json I found posts for people finding the same with catalina 's not if. * exc_info ) At this point, you should connect to your existing kernel 'cmd ', do jupyter-notebook. ) At this point, you should connect to your existing kernel not recognized by LenvsTocHTMLExporter I recently Jupyter. Future projects to be stored not clear if this bug is on tornado or Jupyter side will on..., in reraise [ W 13:16:51.012 NotebookApp ] Replacing stale connection: 330a6583-0b2d-42b1-aa67-c95a50c19e80:823f17268f1240248298d6b4d835495f posting...: \Users\Lenovo\anaconda3\envs\ajitenv\lib\runpy.py '', line 87, in run_code from to be stored I posts... Stop this server and shut down all kernels ( twice to skip confirmation ) are listed on the line... Of them has worked out p, flags ) [ W 13:28:55.218 NotebookApp ] Config option template_path not recognized LenvsTocHTMLExporter! 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