# Unable to work with Clojupyter
**URL:** https://clojureverse.org/t/unable-to-work-with-clojupyter/8554
**Category:** Beginners
**Created:** [January 25, 2022, 4:59am UTC](https://clojureverse.org/t/unable-to-work-with-clojupyter/8554 "2022-01-25T04:59:42Z")
**Posts on this page:** 5
**Page:** 1
### Author:  [@mindaslab](https://clojureverse.org/u/mindaslab)
#### Post date: [January 25, 2022, 4:59am UTC](https://clojureverse.org/t/unable-to-work-with-clojupyter/8554/1 "2022-01-25T04:59:42Z")
Hello All,
I am learning Clojure, and I found clojupyter to be very helpful. But recently I am getting errors as shown. I use Mac M1 (Monterey 12.1)
```auto
[I 2022-01-25 10:21:54.017 LabApp] Build is up to date
[I 2022-01-25 10:21:57.063 ServerApp] Creating new notebook in
[I 2022-01-25 10:21:57.529 ServerApp] Kernel started: 271c0671-68c9-4ebc-b92d-9d8fe5b86837
[E 04:52:08.886 Clojupyter] c8r.messages -- Invalid message signature
[E 04:52:08.932 Clojupyter] c8r.util-actions --
java.lang.Thread.run Thread.java: 745
java.util.concurrent.ThreadPoolExecutor$Worker.run ThreadPoolExecutor.java: 617
java.util.concurrent.ThreadPoolExecutor.runWorker ThreadPoolExecutor.java: 1142
...
clojure.core.async/thread-call/fn async.clj: 443
clojupyter.zmq/start/fn zmq.clj: 108
clojure.core.async/>!! async.clj: 143
clojure.core.async.impl.channels.ManyToManyChannel/put! channels.clj: 143
clojure.core.async.impl.channels/chan/fn channels.clj: 300
clojure.core/map/fn/fn core.clj: 2742
...
clojupyter.util-actions/wrap-report-and-absorb-exceptions/fn util_actions.clj: 239
clojure.core/apply core.clj: 665
...
clojure.core/comp/fn core.clj: 2569
clojupyter.kernel.core/wrap-skip-shutdown-tokens/fn core.clj: 83
clojure.core/comp/fn core.clj: 2569
clojure.core/partial/fn core.clj: 2624
...
clojure.spec.test.alpha/spec-checking-fn/fn alpha.clj: 142
...
clojupyter.messages/fn/frames->jupmsg messages.clj: 288
java.lang.Exception: Invalid message signature
[E 04:52:09.009 Clojupyter] c8r.util-actions --
java.lang.Thread.run Thread.java: 745
java.util.concurrent.ThreadPoolExecutor$Worker.run ThreadPoolExecutor.java: 617
java.util.concurrent.ThreadPoolExecutor.runWorker ThreadPoolExecutor.java: 1142
...
clojure.core.async/thread-call/fn async.clj: 443
clojupyter.zmq/start/fn zmq.clj: 108
clojure.core.async/>!! async.clj: 143
clojure.core.async.impl.channels.ManyToManyChannel/put! channels.clj: 143
clojure.core.async.impl.channels/chan/fn channels.clj: 300
clojure.core/map/fn/fn core.clj: 2742
...
clojupyter.util-actions/wrap-report-and-absorb-exceptions/fn util_actions.clj: 239
clojure.core/apply core.clj: 665
...
clojure.core/comp/fn core.clj: 2569
clojupyter.kernel.core/wrap-skip-shutdown-tokens/fn core.clj: 83
clojure.core/comp/fn core.clj: 2569
clojure.core/partial/fn core.clj: 2624
...
clojure.spec.test.alpha/spec-checking-fn/fn alpha.clj: 142
...
clojupyter.messages/fn/frames->jupmsg messages.clj: 288
java.lang.Exception: Invalid message signature
Exception in thread "async-thread-macro-11" java.lang.AssertionError: Assert failed: handle-request - internal error (':shell_port' neq '')
```
It will be great if some one could tell me whats happening, and possible fix.
---
### Author:  [@mindaslab](https://clojureverse.org/u/mindaslab)
#### Post date: [February 4, 2022, 6:27am UTC](https://clojureverse.org/t/unable-to-work-with-clojupyter/8554/2 "2022-02-04T06:27:28Z")
I solved it and have written a blog about it here [Getting Clojupyter running | Karthikeyan A K’s blog](https://mindaslab.github.io/programming/clojure/clojupyter/2022/02/04/getting-clojupyter-running.html)
---
### Author:  [@p-himik](https://clojureverse.org/u/p-himik)
#### Post date: [February 4, 2022, 9:21am UTC](https://clojureverse.org/t/unable-to-work-with-clojupyter/8554/3 "2022-02-04T09:21:58Z")
To address a couple of points from your blog post, since it doesn’t seem to have a way to comment.
> it would be great if clojure community is becomes more helpful in the future
Any community’s helpfulness is limited by the expertise of its people. In this case, your question is not really about Clojure or even Java but rather about Clojure being run in a Clojupyter notebook being run on an M1 machine. It’s _very_ niche, so there are not a lot of people that could help here.
Regarding running Jupyter with Clojure in general. I find that most often Jupyter is used by data science communities, and there’s a whole such community that’s focused on working with Clojure. The thing is, AFAICT they don’t use Jupyter that much and prefer other tools, like for example [GitHub - nextjournal/clerk: ⚡️ Moldable Live Programming for Clojure](https://github.com/nextjournal/clerk) or [https://pink-gorilla.github.io/](https://pink-gorilla.github.io/). I’m not in a position to say why, but if you’re interested then you’re more than welcome to ask about that here on Clojuverse or on Zulip in the #data-science stream. In particular, [Profile - daslu - ClojureVerse](https://v2.clojureverse.org/u/daslu) should know about this.
---
### Author:  [@daslu](https://clojureverse.org/u/daslu)
#### Post date: [February 4, 2022, 11:40am UTC](https://clojureverse.org/t/unable-to-work-with-clojupyter/8554/4 "2022-02-04T11:40:26Z")
Hi @mindaslab, thanks for the post!
And thanks for the important clarification, @p-himik, I believe you are right.
Indeed Clojupyter is not so active, at the moment.
Pink-Gorilla is very promising, but still work-in-progress. In addition to Clerk, another well-polished and friendly tool is [Portal](https://github.com/djblue/portal). The maintainers of these projects (and others) are extremely kind and helpful.
By the way, today we’ll have [a community meeting](https://v2.clojureverse.org/t/visual-tools-group-meeting-1/) with a few of the people creating visual tools around similar use cases. Maybe you’d like to join. [A similar meeting](https://www.youtube.com/watch?v=lqb4XlFI-08) took place a couple of months ago and may shed some light on the active projects in this field.
---
### Author:  [@system](https://clojureverse.org/u/system)
#### Post date: [August 5, 2022, 11:41pm UTC](https://clojureverse.org/t/unable-to-work-with-clojupyter/8554/5 "2022-08-05T23:41:14Z")
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