Clojurians Log v2

After connecting calva and reveal, all is OK until I happen to edit an edn data file… Then I get an Unhandled REPL handler exception.

clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version "0.8.3"} cider/cider-nrepl {:mvn/version "0.25.7"}}}' -A:reveal:config
nREPL server started on port 52491 on host localhost - <nrepl://localhost:52491>
ERROR: Unhandled REPL handler exception processing message {:op info, :ns user, :symbol resources/public/kidney/edn, :id 15, :session 476d9211-b2ba-41c0-b382-65b4c724e4ff}

That ‘Calva Jack-in Clojure CLI’ terminal then continues to log errors even when returning to edit a clj file. The repl and reveal do both continue to work. Errors logged look like this:

ERROR: Unhandled REPL handler exception processing message {:op info, :ns transplants.configure, :symbol , :id 74, :session 476d9211-b2ba-41c0-b382-65b4c724e4ff}
java.lang.ClassCastException: clojure.lang.Var$Unbound cannot be cast to java.lang.ClassLoader 

Do you know if it happens only when used together with reveal?

Still experimenting… comparing 2.0.134 at present - which appears to be working OK with reveal and visiting an EDN file. I’ll upgrade again and try without reveal…

Not sure about 134, but we've added a setting for changing the jack-in versions of dependencies. Thinking it could be something with those...

OK - so it’s possible that EDN is not the trigger. In 2.0.153 again and this time without reveal, and a jack-in gives me:

clojure -Sdeps '{:deps {nrepl/nrepl {:mvn/version "0.8.3"} cider/cider-nrepl {:mvn/version "0.25.7"}}}' -A:config -m nrepl.cmdline --middleware "[cider.nrepl/cider-middleware]"
WARNING: When invoking clojure.main, use -M
nREPL server started on port 52880 on host localhost - <nrepl://localhost:52880>
ERROR: Unhandled REPL handler exception processing message {:op info, :ns transplants.configure, :symbol separate, :id 7, :session 01f14827-e8e0-4fbb-bd7b-5b336e17facb}

Just weird.

That was when visiting a clj file.

Things are not consistent here so it’s difficult to report. I closed vscode and retried, and there was no problem (without reveal)

Back to reveal. This time jack-in asks ‘Add port to nREPL if localhost’ - it usually doesn’t. I give it the port where nREPL started and reveal connects. No error when visiting EDN. More weirdness 😞

I continued working with that set up. But later the exception reappeared - I don’t know what triggered it. Ignoring it for now. Here’s the stack trace: https://gist.github.com/gmp26/7fccddb014559990e82c27139ba2cbec

Lots of dependency weirdness,, indeed. But it’s good you have seen it and investigated it some. As more clues are collected we’ll probably figure it out eventually.

Bump @claudius.nicolae about finishing his PR about that port prompt. 😃

When I try to evaluate a bad code like this (assoc [] [:foo :bar] 42) I get no feedback at all. In 2.0.152 it works as expected throws an error: ; Execution error (IllegalArgumentException) at zelark.aoc.maze/eval6016 (REPL:26). ; Key must be integer Is it a known issue?

pr finished, let's merge; that and keybindings one too

Works for me. Can you give more context?

Last time I checked there were review issues with the PR. Have you fixed those?

I think so

Weird! I wonder if it's something with some code in your project that's causing cider-nrepl/orchard to throw this error

If it keeps up, and you can provide a repro project + steps to make it happen consistently, an issue with that repro project linked would be good. Soon cider-nrepl will be upgraded to 0.25.8 (next release), and was recently upgraded to 0.25.7, so I wonder if there is something that changed to cause that, and I wonder if it'll be resolved after an upgrade

I get that error in 2.0.153. Not sure what could be going on. Have you tried reloading your VS Code / repl?

It says review pending when I check. There’s a file watcher added that is not needed.

After restarting the editor it has gone. Thanks.

But seems like there is some other problem that is related to namespaces switching. I’ll try to reproduce it and make a capture of my screen.

Do we want the watcher as a fallback? In case regex yields no port?

Not sure what the pending thing is, I have no feedback there myself.

I wondered that too, but the stack trace doesn’t go near my code. All this weird stuff started happening after the Christmas break and when I go back to the pre Christmas release (134 is my favourite) it stops happening.

Hey! Just installed calva and I have run into a weird problem. Getting bunch of unresolved symbol errors. Why could that happen?

You probably didn't configured the :lint-as for that macro with-let

Check: https://github.com/clj-kondo/clj-kondo/blob/master/doc/config.md#lint-a-custom-macro-like-a-built-in-macro

I think there's been at least a couple upgrades of jack-in deps, maybe some back around that time, so that could be it.

Oh ok, makes sense. Thank you.

Hello and welcome! Glad to see you've got some help.

Wondering if this is related to this: https://github.com/clojure-emacs/orchard/issues/103. I linked your gist there and asked about it

https://github.com/clojure-emacs/orchard/issues/103#issuecomment-767874955 Looks like this is fixed now. Hopefully with the next Calva release which includes a cider-nrepl update, you won't see this error any more.