Notebook kernel error : 500 internal server error

Traceback (most recent call last):
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\web.py”, line 1703, in _execute
result = await result
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File “C:\Users\LENOVO\anaconda3\lib\site-packages\notebook\services\sessions\handlers.py”, line 69, in post
model = yield maybe_future(
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 735, in run
value = future.result()
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File “C:\Users\LENOVO\anaconda3\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 “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 735, in run
value = future.result()
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 742, in run
yielded = self.gen.throw(*exc_info) # type: ignore
File “C:\Users\LENOVO\anaconda3\lib\site-packages\notebook\services\sessions\sessionmanager.py”, line 100, in start_kernel_for_session
kernel_id = yield maybe_future(
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 735, in run
value = future.result()
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\tornado\gen.py”, line 209, in wrapper
yielded = next(result)
File “C:\Users\LENOVO\anaconda3\lib\site-packages\notebook\services\kernels\kernelmanager.py”, line 168, in start_kernel
super(MappingKernelManager, self).start_kernel(**kwargs)
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_client\multikernelmanager.py”, line 185, in start_kernel
km.start_kernel(**kwargs)
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_client\manager.py”, line 309, in start_kernel
kernel_cmd, kw = self.pre_start_kernel(**kw)
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_client\manager.py”, line 256, in pre_start_kernel
self.write_connection_file()
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_client\connect.py”, line 468, in write_connection_file
self.connection_file, cfg = write_connection_file(self.connection_file,
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_client\connect.py”, line 138, in write_connection_file
with secure_write(fname) as f:
File “C:\Users\LENOVO\anaconda3\lib\contextlib.py”, line 113, in enter
return next(self.gen)
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_core\paths.py”, line 435, in secure_write
win32_restrict_file_to_user(fname)
File “C:\Users\LENOVO\AppData\Roaming\Python\Python38\site-packages\jupyter_core\paths.py”, line 361, in win32_restrict_file_to_user
import win32api
ImportError: DLL load failed while importing win32api: %1 is not a valid Win32 application.

Hi Ravi, I am also facing the same issue. Could you find a fix for this?

Thanks.

not solve
i m using run on binder n saved

Thanks for the reply!