I killed my repl buffer and now can’t start a new one due to cider--gather-session-params: Selecting deleted buffer, is there a way to clean up stale data?

@tatut I think it's related to https://github.com/clojure-emacs/cider/issues/2435

yes, that’s it

@tatut I think you need to do cider-quit and/or sesman-quit. I figured this out after trying. Still don’t know much about sesman, but it seems this is a new thing in cider.

Hi there, I was just asking this in the less crowded #luminus channel. How do I get cider working with the luminus web-dev template, it shoots up its own nrepl. and cider-connect comes up with :

>WARNING: CIDER requires cider-nrepl to be fully functional. Many things will not work without it!

@adamgefen probably adding :plugins [[cider/cider-nrepl "x.y.z"]] to the project.clj should do the trick

@kommen I tried.. it comes with that same warning still

Is anyone able to start 2 repls for the same project, we have a mixed clj&cljs project. And we used to start the clj part with clojure-cli and the cljs part with the built in shadow. I tried the cider-jack-in-clj&cljs but this makes a sibling cljs repl and I want a separate clj and cljs repl in different proceses. Am I doing something wrong? I also first got the warning that a session with the same parameters exist

If I only run a clj repl or a cljs repl then it works perfectly, I tried figuring out how to start the shadow-cljs repl inside of clojure-cli but then I get some middleware error:

Can't change/establish root binding of: *nrepl-cljs* with set

And if I do: 1. jack-in-clj then it wil succesfully start a repl 2. jack-in-cljs Then I get a the warning session with the same parameters exist and the I say continue and it will print that it is starting and never finish starting..

more about my attempts with luminus: I tried also adding cider-nrepl as :plugins in a project.clj in the project directory as suggested in the cider guide: http://docs.cider.mx/en/latest/installation/#ciders-nrepl-middleware , still no functionality.

> @tatut I think you need to do cider-quit and/or sesman-quit. I figured this out after trying. Still don’t know much about sesman, but it seems this is a new thing in cider.

Yes, sesman (session manager) is our new connection management library. As 0.18 is the first release to incorporate it, it’s a bit rough around the edges, but your feedback is going to help us finetune it relatively quickly.

@adamgefen How exactly are you starting nREPL within your project?

> Is anyone able to start 2 repls for the same project, we have a mixed clj&cljs project. And we used to start the clj part with clojure-cli and the cljs part with the built in shadow. I tried the cider-jack-in-clj&cljs but this makes a sibling cljs repl and I want a separate clj and cljs repl in different proceses. Am I doing something wrong? I also first got the warning that a session with the same parameters exist

@mitchelkuijpers Hmm, that’s an interesting use case we didn’t really consider, but I believe that issuing cider-jack-in-clj an cider-jack-in-cljs for your project will do exactly what you want to do.

(you’ll get some prompt about creating a sibling connection instead, but you can just reply with No there)

@bozhidar the project is the first tutorial in "web development with clojure" downloaded from "the pragmatic bookshelf" website. I tried lein run the project then cider-connect to port 7000 which is where the luminus nrepl is running. I also tried lein repl and lein repl to a specific port (7000) then cider-connect. the only option that gives me cider functionality is running lein repl then cider connect to the default port, but then I get errors like some timestamp issue... (by the way by the term "functionality" I mean that cider-repl loads and the errors I get are of cider-repl)

i'm seeing the same problem as @mitchelkuijpers. it broke recently, maybe 0.18? before that clj&cljs repls started and worked nicely

@shem This didn’t break - we intentionally changed it. 🙂 I didn’t imagine people wanted to start a couple of REPL servers for the same project. As I said - there’s still the option to start two independent REPLs using two consecutive jack-ins for the project.

I’m just puzzled in general why would you want an independent Clojure and ClojureScript REPL.

@adamgefen Just adding the cider-nrepl dep doesn’t do anything when using the embedded nREPL server - you actually have to pass the server cider’s nREPL handler or a vector of CIDER middlewares. From what you’re saying I’ll assume the tutorial project doesn’t do this.

http://docs.cider.mx/en/latest/installation/#using-embedded-nrepl-server

@bozhidar got it. I'll try that.

@bozhidar the idea is just to have a usable repl for both clj and cljs. is the idea now to use one repl for both somehow? i tried again to replicate the problem and of course it works just fine this time…but on another machine yesterday i had to run the cljs repl on the command line because inside emacs it wouldn't connect

@bozhidar placed the handler, works a charm! thanks.

You’re welcome!

You might send a PR to this tutorial to include some info for CIDER users. Or add this to CIDER’s manual. 🙂

@shem One nREPL server is capable of handling simultaneously Clojure and ClojureScript REPLs.

We weren’t doing this in the past because of limitations of the old connection management API, but that’s generally the efficient approach to handling multiple connections.

Hi - I've got a quick question about code completion. I see number alongside each completion option. How do I choose a particular number?

See numbers on this screenshot:

M+0 to select :keys* in the screenshot. 🙂

(where M is Alt in Emacs vernacular)

You can also disable those numbers, but I don’t recall the exact setting that controls them.

(setq company-show-numbers nil) to disable them

cider-restart -> wrong type argument processp, nil ? 🙂

@borkdude Report this, please.

anyone else seeing this with cider 0.18, or is it a contextual problem? I’d like to know that first

I read somewhere that this could be a workaround for the other issue