Cider: Fail to start nREPL

[PiFlUn]

Expected behavior

Start the nREPL either by M-x cider-jack-in or M-x cider-connect (with lein repl running in the terminal, in the leiningen project folder).

Actual behavior

nREPL server connects to localhost then connection closes due to "error in process filter".

Steps to reproduce the problem

Start up emacs with an existing leininger project then try to run the nREPL by either by M-x cider-jack-in or M-x cider-connect.

Environment & Version information

REPL-y 0.3.7, nREPL 0.2.12
Clojure 1.8.0
OpenJDK 64-Bit Server VM 1.8.0_151-8u151-b12-0ubuntu0.16.04.2-b12

CIDER version information

Include here the version string displayed when
CIDER's REPL is launched.
Cannot provide due to error, version displayed by M-x list-packages 20171213.2315

Lein/Boot version

Leiningen 2.8.1 on Java 1.8.0_151 OpenJDK 64-Bit Server VM

Emacs version

GNU Emacs 24.5.1

Operating system

Ubuntu 16.04.3 LTS

Full error message taken from *Messages* after M-x cider-jack-in

Starting nREPL server via /bin/lein update-in :dependencies conj [org.clojure/tools.nrepl\ \"0.2.13\"\ \:exclusions\ [org.clojure/clojure]] -- update-in :plugins conj [refactor-nrepl\ \"2.4.0-SNAPSHOT\"] -- update-in :plugins conj [cider/cider-nrepl\ \"0.16.0-SNAPSHOT\"] -- repl :headless :host ::...
nREPL server started on 45727
[nREPL] Establishing direct connection to localhost:45727 ...
[nREPL] Direct connection to localhost:45727 established
error in process filter: cider--connections-refresh: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))
error in process filter: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))

Full error message taken from *Messages* after M-x cider-connect

nREPL server started on 44116
[nREPL] Establishing direct connection to localhost:44116 ...
[nREPL] Direct connection to localhost:44116 established
error in process filter: cider--connections-refresh: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))
error in process filter: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))
[nREPL] Connection closed unexpectedly (connection broken by remote peer)
error in process sentinel: cider--connections-refresh: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))
error in process sentinel: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))
[nREPL] Establishing direct connection to localhost:41927 ...
[nREPL] Direct connection to localhost:41927 established
cider--connections-refresh: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))

[bbatsov]

Likely you've installed some broken snapshot - please, install the latest one and that should fix the problem.

[PiFlUn]

Thanks for tip. Now that I compared the problematic version with one on another computer where it works, I see the difference in the date.

[radirk]

I'm still getting this issue with snapshot 20171218.214. My setup is exactly the same as above, except I'm on Clojure 1.9 and lein 2.7.1

[xiongtx]

Lein 2.7.1 is pretty old; the latest release is 2.8.1. Does this still occur after a lein upgrade?

[radirk]

Upgraded to lein 2.8.1. Still have the issue with latest snapshot 20171220.135. Will investigate further. Thanks!

[xiongtx]

Anything in your .lein/profile.clj?

[bherrmann7]

I was seeing this problem too, then I switched from cider from "melpa" (aka cider 20171220.135) to "stable.melpa" (aka cider 0.15.1)... and now life is good again!

[bbatsov]

I wonder if we didn't break compatibility with Emacs 24.x in some subtle way recently. Can't imagine what else could be causing such an error.

cider--connections-refresh: Invalid function: (buffer (get-buffer cider--connection-browser-buffer-name))

[bherrmann7]

I'm running with Emacs 25.2.1 on Ubuntu 17.10 I also saw a warning about the :jetty profile not loading. (err... I still see that warning...)

[bbatsov]

Did you try complete removing CIDER and installing again?

[bherrmann7]

Strange, I flipped back from "stable.melpa" to regular "melpa", got cider 20171220.135 and it started up just fine..... I'm not sure why.

[radirk]

Tried cleaning out ~/.m2/repository/cider, switching to 0.15.1 from 0.16.0-SNAPSHOT, upgrading everything in .lein/profiles.clj. Still no luck getting it to work.

[soulawaker]

I've stuck in same problem with same error messages after updating cider from 0.15.0-SNAPSHOT to 0.17.0-SNAPSHOT. My environment is same above except following components.

Environment

Oracle JDK 64bit 1.8.0_151

CIDER version

package 20171228.1254

Emacs version

Spacemacs based on GNU Emacs 24.5.1

OS

Elementary OS Loki based on Ubuntu 16.04.

[bbatsov]

Delete the cider installation and install it again. That would fix the
problem. Likely that some issue package.el.

On Fri, Dec 29, 2017 at 12:24 HyungSuk Ryu [e-mail] wrote:

I've stuck in same problem with same error messages after updating cider
from 0.15.0-SNAPSHOT to 0.17.0-SNAPSHOT. My environment is same above
except following components.
Environment

Oracle JDK 64bit 1.8.0_151
CIDER version

package 20171228.1254
Emacs version

Spacemacs based on GNU Emacs 24.5.1
OS

Elementary OS Loki based on Ubuntu 16.04.

—
You are receiving this because you commented.

Reply to this email directly, view it on GitHub
https://github.com/clojure-emacs/cider/issues/2140#issuecomment-354427758,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AAGVyvoiao6zZ7cHs0IWUKMKpZJhzNFoks5tFL3tgaJpZM4RB8yL
.

>

Best Regards,
Bozhidar Batsov

http://www.batsov.com

[soulawaker]

It worked. I missed this workaround. It's annoying that sometimes updating
packages has problems like this randomly. Thanks.

2017-12-29 19:57 GMT+09:00 Bozhidar Batsov [e-mail]:

Delete the cider installation and install it again. That would fix the
problem. Likely that some issue package.el.

On Fri, Dec 29, 2017 at 12:24 HyungSuk Ryu [e-mail]
wrote:

I've stuck in same problem with same error messages after updating cider
from 0.15.0-SNAPSHOT to 0.17.0-SNAPSHOT. My environment is same above
except following components.
Environment

Oracle JDK 64bit 1.8.0_151
CIDER version

package 20171228.1254
Emacs version

Spacemacs based on GNU Emacs 24.5.1
OS

Elementary OS Loki based on Ubuntu 16.04.

—
You are receiving this because you commented.

Reply to this email directly, view it on GitHub
issuecomment-354427758>,
or mute the thread
AAGVyvoiao6zZ7cHs0IWUKMKpZJhzNFoks5tFL3tgaJpZM4RB8yL>
.

>

Best Regards,
Bozhidar Batsov

http://www.batsov.com

—
You are receiving this because you commented.
Reply to this email directly, view it on GitHub
https://github.com/clojure-emacs/cider/issues/2140#issuecomment-354431128,
or mute the thread
https://github.com/notifications/unsubscribe-auth/AFH5OdXyVMCq3PxNRAcEFLHFi8j2qUmZks5tFMV8gaJpZM4RB8yL
.

[harold]

Encountered this today on a machine that is still running Emacs 24. Removing cider* from .emacs.d and starting Emacs again fixed it.

[the-frey]

Encountered this one today on emacs 24.5 - as @harold says, nuking cider and then M-x package install cider after restart seems to clear it up for some reason...

[PiFlUn]

Same happened to me today too - wanted to fire up cider again, did not start. Nuked cider, installed it again and whoosh it works again.
Should I reopen the issue? I mean sure, everyone can solve it by him/herself though it would be nice in my opinion if a new version of cider would not cause problems like this.

[bbatsov]

It's not really a problem with CIDER - it's a problem with package.el and how it byte-compiles stuff. Sometimes something stale remains and this leads to such problems.