Latest nrepl.el doesn't connect?

[deg]

(Sorry; I know that this is a crappy bug report so far. Reporting this early mostly in the hope that someone else has already seen the same problem).

I just upgraded the emacs packages I'm using, including nrepl.el, and M-x nrepl-jack-in has stopped working.

I see the message "Starting nREPL server..." followed by "Connected. ". Then, as expected, the nrepl buffer is selected.

But, the buffer is totally blank and non-responsive.
And, when I go back to my clj file, command like C-c C-k are undefined.

The nrepl-server-... buffer contains "Browser-REPL ready @ http://localhost:51757/3969/repl/start
nREPL server started on port 37329 on host 127.0.0.1" and the -connection- buffer is empty.

It looks like startup aborted mid-stream with no visible message. I'm not sure, just yet, how to debug this further.

This ring any bells?

[bbatsov]

Are you using ClojureScript?

[deg]

Yes, in the project. But I started the repl from a server-side Clojure file.

[deg]

I just tried it in an older, simpler, project with no ClojureScript (https://github.com/deg/Marvin), doing the nrepl-jack-in from src/guess_number/core.clj. Same problem.

I'm going to try stripping down my emacs environment now, in the assumption that I've probably hit some conflict.

[deg]

Ok, moved away my entire .emacs.d, loaded just nrepl, and things work. I'll shut up now until I finish the usual binary-divide dance and can report what the problem really is.

[bbatsov]

🎱 :-)

[deg]

Ok, found it.

Right before I updated the packages, I had read through https://github.com/clojure-emacs/nrepl.el to see what was new. I added a bunch of stuff, verified what worked in my open repl, and realized that I needed to update to your latest package.

Turns out that I had added
(add-hook 'nrepl-repl-mode-hook 'smartparens-strict-mode)
and this is the line that breaks my repl. I've verified that removing/adding it is enough to fix/restore the problem.

So, I don't know if this problem is new to the latest version of nrepl.el, because I never actually started a repl with it in the previous version.

[bbatsov]

Maybe you have not installed smartparens? Otherwise I cannot imagine how this could be problematic.

[deg]

(Head-slaps self)

Yup. I had somehow assumed from the wording of your readme that it was a built-in, rather than an external library.
Not sure why I made that mistake; my bad.

Thanks. Feel free to close this issue.

[mpenet]

Same error on my setup with the MELPA version (latest master I guess, I updated this morning), I tried to narrow it down without any success.
I don't use smartparens though. I tried disabling ac-nrepl but no change.

To add more detail if I try typing RET in the empty repl buffer I get "Wrong type argument: stringp, nil"

my config is at https://github.com/mpenet/emax
and some relevant portions: https://github.com/mpenet/emax/blob/master/init.el https://github.com/mpenet/emax/blob/master/config/modes.el

Any help would be appreciated.

[bbatsov]

@mpenet Your problem is different - it seems I've messed something up while I was breaking up the package. I'll have a look at the problem when I have some time.

[tomfaulhaber]

+1 to @mpenet

My setup:
Ubuntu 12.10
Emacs 24.2.1
Fresh prelude install: commit 2b28cfb41b1 (with just clojure added to prelude-modules.el)

Leiningen 2.3.3 with no custom profiles.clj
Fresh leiningen project created with "lein new"

lein repl at the shell prompt works fine.

nrepl-jack-in fails as @mpenet describes. Connecting to an existing "lein repl" with M-x repl fails in the same way. I get the "Wrong type argument: stringp, nil" when I quit the repl from the command line.

Thanks & let me know if I can help

[bbatsov]

I've just fixed that. Just wait for a package update on MELPA.

[tomfaulhaber]

@bbatsov You're awesome! Thanks.

[mpenet]

Thanks!