launching jupyter i get kernel error #2301

abdolrhman · 2017-03-16T15:35:06Z

hey guys, i have this problem when i try to launch jupyter , the i got kernel error in the top right corner ,
i do tried to make python 2 kernel in jupyter so i followed some toturials about make environments then things start to get missy and errors showed up so i deleted them (envs) and kernel error is ON .
and when i click it i got this :

Traceback (most recent call last):
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\notebook\base\handlers.py", line 503, in wrapper
result = yield gen.maybe_future(method(self, *args, **kwargs))
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\notebook\services\sessions\handlers.py", line 75, in post
type=mtype))
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\NasrAlDin\Anaconda3\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 "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\NasrAlDin\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:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 285, in wrapper
yielded = next(result)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 87, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 243, in start_kernel
**kw)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 189, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\launcher.py", line 123, in launch_kernel
proc = Popen(cmd, **kwargs)
File "C:\Users\NasrAlDin\Anaconda3\lib\subprocess.py", line 707, in init
restore_signals, start_new_session)
File "C:\Users\NasrAlDin\Anaconda3\lib\subprocess.py", line 990, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

thanks in advance and please help me , i reinstalled anacodna btw and still same error .

abdolrhman · 2017-03-16T16:22:40Z

@takluyver

abdolrhman · 2017-03-16T16:49:52Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

takluyver · 2017-03-16T18:29:04Z

Yup, that's what I would have suggested. Thanks for working it out yourself!

For other people who might read this: you can see kernelspecs (which may contain references to deleted envs) by running:

jupyter kernelspec list

abdolrhman · 2017-03-16T18:46:41Z

brother @takluyver can you give me a complete steps to install python 2 kernel in notebook beside the python 3 , because the start of the problem got from doing wrong steps , thank you very much and by the way , my solution brought up from YOU , so thank you very much :)

takluyver · 2017-03-16T19:55:30Z

Have a look at the instructions here:
http://ipython.readthedocs.io/en/stable/install/kernel_install.html#kernels-for-python-2-and-3

paulmattheww · 2018-04-11T21:25:04Z

I know you closed this, but I've tried literally all day (and all recommendations on all the threads I could find).

Kernels:

Available kernels:
  ir         C:\Users\pmwash\AppData\Roaming\jupyter\kernels\ir
  python3    C:\Users\pmwash\AppData\Roaming\jupyter\kernels\python3

The kernel error is:
FileNotFoundError: [WinError 2] The system cannot find the file specified

I even uninstalled all Anaconda distributions and Python distributions, re-installed them, and still same issue. At a loss at this point. Any guidance? Thanks in advance!

takluyver · 2018-04-12T06:43:49Z

Try deleting that kernelspec path (the python3 one, assuming that's what is failing to launch). It should fall back on running the kernel in the same Python as the notebook server.

paulmattheww · 2018-04-12T14:06:50Z

Thank you that worked. Now I need to reinstall all the libraries. Appreciated.

Pratimhajra · 2018-04-22T17:31:53Z

How to delete kernelspec path

takluyver · 2018-04-22T19:58:59Z

Find the path using jupyter kernelspec list. Then you can navigate to that in your file manager and delete it, or do it from the terminal (rm -r path/to/directory on Unix; if you're on Windows, you'll have to look it up)

peoplecure · 2018-09-29T22:56:08Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

Thank you : )

devkrish23 · 2018-09-30T10:35:07Z

That worked for me @abdolrhman you're a wizard !

stephaniemdavis · 2018-10-05T14:25:18Z

@abdolrhman @takluyver : you solved my problem (error log attached).
kernel_error_log.txt

stephaniemdavis · 2018-10-05T16:14:25Z

@peoplecure - The problem source as you define it seems to undermine the benefits of creating sandbox environments. Don't know why deleting one environment would affect the kernel operation.

marcobonifacio · 2018-10-10T09:04:08Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

Thank you, it worked for me.

ghost · 2018-11-10T19:38:45Z

Problem persists for me

$ jupyter kernelspec list
Available kernels:
python3 /home/miracode2033/anaconda3/share/jupyter/kernels/python3
$ rm -r /home/miracode2033/anaconda3/share/jupyter/kernels/python3
$ jupyter kernelspec list
Available kernels:
python3 /home/miracode2033/anaconda3/lib/python3.6/site-packages/ipykernel/resources
$ python -m ipykernel install --user
Installed kernelspec python3 in /home/miracode2033/.local/share/jupyter/kernels/python3
$

bohlinz · 2018-12-14T03:59:38Z

Thanks! I also get this problem for my envs. The cmd solve the problem and Kernal work now.

Sivananda-Panda · 2019-01-12T16:44:28Z

I am getting error as
ImportError: cannot import name 'create_prompt_application'.
please suggest

wesinator · 2019-01-19T16:08:21Z

@Sivananda-Panda jupyter/jupyter_console#158 (comment)

Tata17 · 2019-02-27T01:39:42Z

Thank you so much! it worked!!

aitorme · 2019-03-15T14:50:08Z

thanks @abdolrhman it really worked just fine! My kernel when running python3 was pointing to this error from Anaconda in Python2, so I was confused at the beginning, but it did work :D

SKINPO-82 · 2020-01-23T05:07:37Z

Run as administrator

…

On Thu, 23 Jan 2020 at 4:59 AM, Bearbear20 ***@***.***> wrote: Thank you for your reply. — You are receiving this because you commented. Reply to this email directly, view it on GitHub <#2301?email_source=notifications&email_token=ANIU5RESRJXYE3PEX3R6L2LQ7EP3JA5CNFSM4DD55DZ2YY3PNVWWK3TUL52HS4DFVREXG43VMVBW63LNMVXHJKTDN5WW2ZLOORPWSZGOEJWAH2A#issuecomment-577504232>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ANIU5RDD5J4XLH77FSRZCNTQ7EP3JANCNFSM4DD55DZQ> .

DineshGon · 2020-02-03T20:01:44Z

if you are still facing the kernel issue. Type these in your Anaconda prompt.
python -m ipykernel install --user

shailesh8604 · 2020-02-18T20:34:18Z

simply jupyter notebook run as administrator

YingxiaoKong · 2020-02-23T21:28:45Z

I know you closed this, but I've tried literally all day (and all recommendations on all the threads I could find).

Kernels:
Available kernels:
  ir         C:\Users\pmwash\AppData\Roaming\jupyter\kernels\ir
  python3    C:\Users\pmwash\AppData\Roaming\jupyter\kernels\python3
The kernel error is:
FileNotFoundError: [WinError 2] The system cannot find the file specified

I even uninstalled all Anaconda distributions and Python distributions, re-installed them, and still same issue. At a loss at this point. Any guidance? Thanks in advance!

I'm just curious how to delete all the anaconda distributions? As I have re-installed Anaconda several times, seems a lot of previous files are still there.

JunaidIQ · 2020-06-12T05:18:04Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

thanks this worked for me, straight and easy solution.

tamittal471 · 2020-06-22T07:22:29Z

I know you closed this, but I've tried literally all day (and all recommendations on all the threads I could find).
Kernels:
Available kernels:
  ir         C:\Users\pmwash\AppData\Roaming\jupyter\kernels\ir
  python3    C:\Users\pmwash\AppData\Roaming\jupyter\kernels\python3
The kernel error is:
FileNotFoundError: [WinError 2] The system cannot find the file specified
I even uninstalled all Anaconda distributions and Python distributions, re-installed them, and still same issue. At a loss at this point. Any guidance? Thanks in advance!
I'm just curious how to delete all the anaconda distributions? As I have re-installed Anaconda several times, seems a lot of previous files are still there.

Open anaconda Prompt in Administrator mode and run the command
python -m ipykernel install --user

Worked like a charm

OpeyemiOsakuade · 2020-07-03T21:02:05Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

Thanks for this

iamharshbit · 2020-07-04T03:59:31Z

Traceback (most recent call last):
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\web.py", line 1592, in _execute
result = yield result
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1133, in run
value = future.result()
File "C:\Users\Harsh.conda\envs\tensorflow\lib\asyncio\futures.py", line 294, in result
raise self._exception
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\notebook\services\sessions\handlers.py", line 73, in post
type=mtype))
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1133, in run
value = future.result()
File "C:\Users\Harsh.conda\envs\tensorflow\lib\asyncio\futures.py", line 294, in result
raise self._exception
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\Harsh.conda\envs\tensorflow\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 "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1133, in run
value = future.result()
File "C:\Users\Harsh.conda\envs\tensorflow\lib\asyncio\futures.py", line 294, in result
raise self._exception
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1141, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\Harsh.conda\envs\tensorflow\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:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 1133, in run
value = future.result()
File "C:\Users\Harsh.conda\envs\tensorflow\lib\asyncio\futures.py", line 294, in result
raise self._exception
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\tornado\gen.py", line 326, in wrapper
yielded = next(result)
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 160, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\jupyter_client\manager.py", line 240, in start_kernel
self.write_connection_file()
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
kernel_name=self.kernel_name
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
with secure_write(fname) as f:
File "C:\Users\Harsh.conda\envs\tensorflow\lib\contextlib.py", line 59, in enter
return next(self.gen)
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\jupyter_client\connect.py", line 100, in secure_write
win32_restrict_file_to_user(fname)
File "C:\Users\Harsh.conda\envs\tensorflow\lib\site-packages\jupyter_client\connect.py", line 53, in win32_restrict_file_to_user
import win32api
ImportError: No module named 'win32api'

If anyone can help

reginalluna · 2020-07-07T16:01:08Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

this works for me! thx

guilhermesd · 2020-07-11T19:57:56Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

Thank you, it worked for me.

Work for me too. Thank you

rudolferemyan · 2020-07-31T08:05:16Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

Worked for me.. Thanks a lot

Musk33 · 2020-09-13T17:55:07Z

uninstall all package and folder of python + remove envirnment then install anaconda ! its work for me

Akshayrmkl · 2020-10-26T13:35:17Z

For me ,I did below steps from several opinions
1.Upgraded conda
$ conda update -n base -c default conda
2.Created new environment
$ conda create -n myenv python=3.8.5 jupyter
here I had verified that my installed python version is 3.8.5.

colehl · 2020-11-01T14:04:58Z

Hi, I installed anaconda and have been using python3 fine. Then, I tried to install Julia so I could use it too. However, I get a kernel error when I open a jupyter notebook. As suggested way above, I tried from the terminal:
jupyter kernelspec list
Available kernels:
julia-1.5 /Users/colehl/Library/Jupyter/kernels/julia-1.5
python3 /Users/colehl/opt/anaconda3/share/jupyter/kernels/python3

The paths are clearly different here. Is that the problem? What should I do to fix this?

kevin-bates · 2020-11-01T22:14:19Z

Hi @colehl. The paths look okay. Kernels are found in different locations, but generally following the output of jupyter --paths relative to the data: locations.

I get a kernel error when I open a jupyter notebook.

What is the complete error you see (in the notebook and console window (if different))?

Do you know if you're using nb_conda_kernels?

colehl · 2020-11-02T18:18:30Z

So, after looking at what you said, I started over and went ahead and updated Anaconda, and then downloaded Julia and that seemed to have worked. I’ll try that sequence on my fancier notebook and hopefully that cleans everything up. Thanks, Hal. linhcole@gmail.com

…

On Nov 1, 2020, at 5:14 PM, Kevin Bates ***@***.***> wrote: Hi @colehl <https://github.com/colehl>. The paths look okay. Kernels are found in different locations, but generally following the output of jupyter --paths relative to the data: locations. I get a kernel error when I open a jupyter notebook. What is the complete error you see (in the notebook and console window (if different))? Do you know if you're using nb_conda_kernels? — You are receiving this because you were mentioned. Reply to this email directly, view it on GitHub <#2301 (comment)>, or unsubscribe <https://github.com/notifications/unsubscribe-auth/ARS46UXMBDN3HNPG5AZICR3SNXMUTANCNFSM4DD55DZQ>.

meeseeksmachine · 2020-12-18T07:21:58Z

This issue has been mentioned on Jupyter Community Forum. There might be relevant details there:

https://discourse.jupyter.org/t/cannot-use-jupyter-uncaught-exception-post-please-help/7205/1

RcrdPhysics · 2021-01-26T17:51:23Z

i found the soultion , the problem was , i made an environments then i deleted them , there were refrences for those envs ,
soultion : used this in cmd : python -m ipykernel install --user

It works! Thank you so much

Nephys222 · 2021-03-30T11:00:43Z

Thanks. It worked for displaced envs.

shrikantpardhi · 2021-04-25T09:02:42Z

Traceback (most recent call last):
File "F:\Anaconda\lib\site-packages\tornado\web.py", line 1699, in _execute
result = await result
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "F:\Anaconda\lib\site-packages\notebook\services\sessions\handlers.py", line 72, in post
type=mtype))
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "F:\Anaconda\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 88, in create_session
kernel_id = yield self.start_kernel_for_session(session_id, path, name, type, kernel_name)
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File "F:\Anaconda\lib\site-packages\notebook\services\sessions\sessionmanager.py", line 101, in start_kernel_for_session
self.kernel_manager.start_kernel(path=kernel_path, kernel_name=kernel_name)
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 735, in run
value = future.result()
File "F:\Anaconda\lib\site-packages\tornado\gen.py", line 209, in wrapper
yielded = next(result)
File "F:\Anaconda\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "F:\Anaconda\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "F:\Anaconda\lib\site-packages\jupyter_client\manager.py", line 240, in start_kernel
self.write_connection_file()
File "F:\Anaconda\lib\site-packages\jupyter_client\connect.py", line 547, in write_connection_file
kernel_name=self.kernel_name
File "F:\Anaconda\lib\site-packages\jupyter_client\connect.py", line 212, in write_connection_file
with secure_write(fname) as f:
File "F:\Anaconda\lib\contextlib.py", line 112, in enter
return next(self.gen)
File "F:\Anaconda\lib\site-packages\jupyter_client\connect.py", line 102, in secure_write
with os.fdopen(os.open(fname, open_flag, 0o600), mode) as f:
PermissionError: [Errno 13] Permission denied: 'C:\Users\shri\AppData\Roaming\jupyter\runtime\kernel-472eca6d-8dad-4bd2-83e3-4b0c7c7fbcc1.json'

kevin-bates · 2021-04-26T15:13:35Z

@shrikantpardhi - please see #5631 (comment)

reni-on-the-moon · 2021-06-08T08:35:21Z

Try deleting that kernelspec path (the python3 one, assuming that's what is failing to launch). It should fall back on running the kernel in the same Python as the notebook server.

How to delete the kernelspec path? I deleted it, but he moved to another path. And when I deleted another path, he is still there. Although the path does not exist now.

aitorme · 2021-06-08T09:48:25Z

Try deleting that kernelspec path (the python3 one, assuming that's what is failing to launch). It should fall back on running the kernel in the same Python as the notebook server.

How to delete the kernelspec path? I deleted it, but he moved to another path. And when I deleted another path, he is still there. Although the path does not exist now.

did you check if you just deleted a symlink instead of the actual path? Are you working with a virtual environment or using the native Python?

coderanandmaurya · 2021-06-11T17:52:15Z

hey guys, i have this problem when i try to launch jupyter , the i got kernel error in the top right corner ,
i do tried to make python 2 kernel in jupyter so i followed some toturials about make environments then things start to get missy and errors showed up so i deleted them (envs) and kernel error is ON .
and when i click it i got this :

Traceback (most recent call last):
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\notebook\base\handlers.py", line 503, in wrapper
result = yield gen.maybe_future(method(self, *args, **kwargs))
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\notebook\services\sessions\handlers.py", line 75, in post
type=mtype))
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\NasrAlDin\Anaconda3\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 "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1021, in run
yielded = self.gen.throw(*exc_info)
File "C:\Users\NasrAlDin\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:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 1015, in run
value = future.result()
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\concurrent.py", line 237, in result
raise_exc_info(self._exc_info)
File "", line 3, in raise_exc_info
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\tornado\gen.py", line 285, in wrapper
yielded = next(result)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\notebook\services\kernels\kernelmanager.py", line 87, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\multikernelmanager.py", line 110, in start_kernel
km.start_kernel(**kwargs)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 243, in start_kernel
**kw)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\manager.py", line 189, in _launch_kernel
return launch_kernel(kernel_cmd, **kw)
File "C:\Users\NasrAlDin\Anaconda3\lib\site-packages\jupyter_client\launcher.py", line 123, in launch_kernel
proc = Popen(cmd, **kwargs)
File "C:\Users\NasrAlDin\Anaconda3\lib\subprocess.py", line 707, in init
restore_signals, start_new_session)
File "C:\Users\NasrAlDin\Anaconda3\lib\subprocess.py", line 990, in _execute_child
startupinfo)
FileNotFoundError: [WinError 2] The system cannot find the file specified

thanks in advance and please help me , i reinstalled anacodna btw and still same error .

uninstall all previous python version from system
uninstall anaconda
reinstall anaconda

laxmi-agarwal · 2021-07-06T04:18:34Z

uninstall all package and folder of python + remove envirnment then install anaconda ! its work for me

how did you remove environment and unstill all package and folder of python? Can you please specify in steps?

takluyver closed this as completed Mar 16, 2017

takluyver added this to the No Action milestone Mar 16, 2017

takluyver added the question label Mar 16, 2017

aulon mentioned this issue Jun 30, 2017

OSError: [Errno 2] No such file or directory #2621

Closed

ghost mentioned this issue Jul 1, 2018

Kernel Error ContinuumIO/anaconda-issues#9623

Closed

start-programming mentioned this issue Aug 26, 2018

Kernel Error while running Jupyter Notebook in Python3 #3880

Open

clayms mentioned this issue Nov 8, 2018

Kernal Error - FileNotFoundError: [WinError 2] The system cannot find the file specified #4079

Closed

Konstantin65 mentioned this issue Mar 24, 2019

Failed to start kernel jupyterhub/jupyterhub#2475

Closed

jmbejara mentioned this issue May 13, 2019

Installed scikit-misc but cannot be found jmbejara/comp-econ-sp19#45

Closed

kevin-bates mentioned this issue Jan 28, 2020

kernel not connect #5191

Closed

kevin-bates mentioned this issue Mar 4, 2020

Getting Kernel Error while running Jupyter Notebook in Python3 #3556

Open

kevin-bates mentioned this issue Aug 3, 2020

Kernel error in jupyter notebook #4909

Closed

github-actions bot added the status:resolved-locked label Jan 3, 2022

github-actions bot locked as resolved and limited conversation to collaborators Jan 3, 2022

launching jupyter i get kernel error #2301

launching jupyter i get kernel error #2301

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