Extension error on launch

[SpontaneousDuck]

I am using my own jupyter notebook container and think I have installed everything as requested by the instructions for jupyter_tensorboard. When trying to open Tensorboard I get the extension error. My Chrome console shows the below error:

The versions for relevant packages are shown below:

Thanks for the help!

[rahulpshah]

Can you post the server logs from the jupyter server, it seems like the issue is related to tensorboard moving to 0.2.3.

[victor-moreno]

tensorboard 2.3.0 doesn't have application.standard_tensorboard_wsgi anymore:

[E 14:04:39.551 NotebookApp] 500 POST /api/tensorboard?1597493079364 (10.84.160.17) 117.26ms referer=http://z97mx.local:9996/lab
[E 14:07:23.942 NotebookApp] Uncaught exception POST /api/tensorboard?1597493243873 (10.84.160.17)
HTTPServerRequest(protocol='http', host='z97mx.local:9996', method='POST', uri='/api/tensorboard?1597493243873', version='HTTP/1.1', remote_ip='10.84.160.17')
Traceback (most recent call last):
File "/packages/tornado/web.py", line 1701, in _execute
result = method(*self.path_args, **self.path_kwargs)
File "/packages/tornado/web.py", line 3178, in wrapper
return method(self, *args, **kwargs)
File "/packages/jupyter_tensorboard/api_handlers.py", line 40, in post
.new_instance(data["logdir"], reload_interval=reload_interval)
File "/packages/jupyter_tensorboard/tensorboard_manager.py", line 223, in new_instance
create_tb_app(
File "/packages/jupyter_tensorboard/tensorboard_manager.py", line 45, in create_tb_app
# return application.standard_tensorboard_wsgi(
AttributeError: module 'tensorboard.backend.application' has no attribute 'standard_tensorboard_wsgi'

The new function is application.TensorBoardWSGIApp but compatibility is uncertain. I have renamed the calls and the error disappears, but I still cannot manage to get it working in a docker container

[andreasfragner]

Same issue here. Doesn't seem entirely straight-forward to just replace tensorboard.backend.application.standard_tensorboard_wsgi with TensorBoardWSGI. Downgrading tensorboard may be an option but not sure which version that change happened in

[NanoCode012]

Hi @andreasfragner and those reading , I got this error when trying to use jupyterlab_tensorboard (frontend of this repo for jupyterlab) chesterli29/jupyterlab_tensorboard#25 (comment) . I fixed it by the following.

Simple solution would be to tell users to pip install tensorboard==2.2.

[cliffwoolley]

If you want to use TB 2.3 or later, can you please try with #63 ?

[kuldip-barot]

Thanks @NanoCode012 pip install tensorboard==2.2 solved my problem too.