User-agent: mu4e 1.11.2; emacs 30.0.50
When I run `M-x eglot' in a LaTeX-buffer and select "texlab" as a
language-server, I get an echo-area message indicating that the connection was successful:
[eglot] Connected! Server `TexLab' now managing `(tex-mode context-mode
texinfo-mode bibtex-mode)' buffers in project `phd-thesis'.
However, I don't get any mode-line indication and the variable
`eglot--managed-mode' is nil, so it seems it didn't properly activate.
I initally noticed the error in that when I tried auto-completing with
`eglot-completion-at-point', I got the error message
(jsonrpc-error "No current JSON-RPC connection" (jsonrpc-error-code . 32603)
(jsonrpc-error-message . "No current JSON-RPC connection"))
I get the same message when e.g. running `M-x eglot-stderr-buffer', so I cannot
attach that, but I attached the contents of eglot-events-buffer. With
debug-on-error enabled I get the backtrace
Debugger entered--Lisp error: (jsonrpc-error "No current JSON-RPC connection"
(jsonrpc-error-code . 32603) (jsonrpc-error-message . "No current JSON-RPC connection"))
jsonrpc-error("No current JSON-RPC connection")
eglot--current-server-or-lose()
byte-code("\300 C\207" [eglot--current-server-or-lose] 1)
command-execute(eglot-stderr-buffer record)
execute-extended-command(nil "eglot-stderr-buffer" nil)
funcall-interactively(execute-extended-command nil "eglot-stderr-buffer" nil)
command-execute(execute-extended-command)
But the initial bug is that Eglot didn't start managing the buffer when I run
the command and that doesn't raise an error initially.
I can reproduce the error with "emacs -Q". It seemed to work in the past
(couple of weeks ago) and now it doesn't anymore. I changed a lot in my Emacs config but
that it works with emacs -Q suggests something else changed rather than just my emacs
init file.
I tried two texlab versions, 5.4.1 and 5.5.0 and also other latex
language-servers such as digestif and ltex-ls and got the same issue. Also it
doesn't matter whether I use AucTeX or plain latex.el (which I had in emacs -Q
anyway). I also disabled my dir-local variables when testing. So it doesn't
seem to depend on the latex language server version.
However, I don't have problems running Eglot in other major modes, e.g. it
works in Python with the pylsp server.
For reproducing, any latex file seemed to work for me, but I attached a very
minimal latex-project for testing anyway. texlab can be downloaded as a static
binary from https://github.com/latex-lsp/texlab/releases/tag/v5.5.0. Then, to
reproduce, just open the latex file in the attached project, run `M-x eglot',
select texlab, and check if it starts managing the buffer. Then,
`eglot--managed-mode' should be `t' and I expect auto-completion to work.
I'm still not 100% sure this is a bug or something messed up in my local
configuration, but I just couldn't find the issue, so I thought I might as well
report it just in case it's not known. If you cannot reproduce it with the
above instructions, feel free to close this bug. Below is the additional system
and config information as provided by report-emacs-bug.
Cheers, Michael
---
In GNU Emacs 30.0.50 (build 1, x86_64-pc-linux-gnu, GTK+ Version
3.24.37, cairo version 1.17.8) of 2023-04-17 built on e490
Repository revision: a46201f57eb114b8107435caf3588edbb666829e
Repository branch: master
System Description: Arch Linux
Configured using:
'configure --prefix=/usr --sysconfdir=/etc --libexecdir=/usr/lib
--localstatedir=/var --mandir=/usr/share/man --with-gameuser=:games
--with-modules --without-libotf --without-m17n-flt --without-gconf
--enable-link-time-optimization --with-native-compilation=yes
--with-xinput2 --with-pgtk --without-xaw3d --with-sound=alsa
--with-xwidgets --with-tree-sitter --without-gpm
--without-compress-install
'--program-transform-name=s/\([ec]tags\)/\1.emacs/'
'CFLAGS=-march=native -mtune=generic -O3 -pipe -fno-plt -fexceptions
-Wp,-D_FORTIFY_SOURCE=2 -Wformat -Werror=format-security
-fstack-clash-protection -fcf-protection -fuse-ld=mold -fuse-ld=mold'
LDFLAGS=-Wl,-O1,--sort-common,--as-needed,-z,relro,-z,now'
Configured features:
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LCMS2 LIBSYSTEMD LIBXML2 MODULES NATIVE_COMP NOTIFY INOTIFY PDUMPER PGTK
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TREE_SITTER WEBP XIM XWIDGETS GTK3 ZLIB
Important settings:
value of $LC_ALL: C.UTF-8
value of $LC_COLLATE: C.UTF-8
value of $LC_CTYPE: en_GB.UTF-8
value of $LC_MESSAGES: en_US.UTF-8
value of $LC_MONETARY: de_DE.UTF-8
value of $LC_NUMERIC: en_US.UTF-8
value of $LC_TIME: de_DE.UTF-8
value of $LANG: C
value of $XMODIFIERS: @im=fcitx
locale-coding-system: utf-8-unix
Major mode: LaTeX
Minor modes in effect:
shell-dirtrack-mode: t
tooltip-mode: t
global-eldoc-mode: t
show-paren-mode: t
electric-indent-mode: t
mouse-wheel-mode: t
tool-bar-mode: t
menu-bar-mode: t
file-name-shadow-mode: t
global-font-lock-mode: t
font-lock-mode: t
blink-cursor-mode: t
line-number-mode: t
transient-mark-mode: t
auto-composition-mode: t
auto-encryption-mode: t
auto-compression-mode: t
Load-path shadows:
None found.
Features:
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Memory information:
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(symbols 48 14103 0)
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eglot-events-buffer.eld
Description: Text document
latex-mwe.tar.gz
Description: application/gzip
--- End Message ---