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Repo info
Clément Pit-Claudel
@fleimgruber Your code looks reasonable, though you shouldn't put a lambda in there. Does it work if you remove it?
If I try that, then I get this error File local-variables error: (invalid-function (when (string= (file-name-nondirectory buffer-file-name) wscript) (flycheck-mode 0)))
Alex Brick
Hi all. Can anyone help me with the php-phpcs checker? I get an error when I run it with flycheck-compile, but there are no errors in the list:
Compilation started at Wed Nov 20 15:30:05

/home/abrick/bin/phpcs-core --report\=checkstyle -q --stdin-path\=REDACTED/src/Entity/Group.php - < REDACTED/src/Entity/Group.php
<?xml version="1.0" encoding="UTF-8"?>
<checkstyle version="3.5.0">
<file name="src/Entity/Group.php">
 <error line="6" column="1" severity="error" message="Use statements should be sorted alphabetically. The first wrong one is App\Constant\Role." source="SlevomatCodingStandard.Namespaces.AlphabeticallySortedUses.IncorrectlyOrderedUses"/>

Compilation exited abnormally with code 2 at Wed Nov 20 15:30:05
flycheck-current-errors is a variable defined in ‘flycheck.el’.
Its value is nil
Local in buffer Group.php; global value is the same.

  Automatically becomes buffer-local when set.

A list of all errors and warnings in the current buffer.
Julio Borja Barra
how can I check what command flycheck is running to check my current file?
can I see log messages like in Messages somehow?
George Michokostas

I just install flycheck and I am trying to make it work with eslint but I for some reason it can't find the .eslintrc.js in my project

This is what I get when I do verify setup

  javascript-eslint (disabled)
    - may enable:  Automatically disabled!
    - executable:  Found at /usr/local/bin/eslint
    - config file: missing or incorrect

Flycheck Mode is enabled.  Use C-u C-c ! x to enable disabled


Flycheck version: 32snapshot (package: 20191121.2139)
Emacs version:    26.3
System:           x86_64-apple-darwin18.2.0
Window system:    ns
eslint -v v5.13.0 if that helps
Is there a timeline / roadmap for Flycheck 32 available?
I am using emacs with the setup (lsp/ccls/flycheck). I am also using the option:
flycheck-check-syntax-automatically '(mode-enabled save)
However, flycheck still displays errors in the buffer while editing and before saving the buffer.
Ivan Yonchovski
@hisnawi check lsp-ui-flycheck-live-reporting
@yyoncho thank you. will check that out. It worked :)
Lareb Khalil Syed
I am new here, I am facing an issue, I have enabled run on save buffer, now whenever I save by typescript buffer, with typescript-tide and typescript-tslint check enabled, the emacs freezes for a couple of second.
Does any one else has this issue?
Hello, I'm getting this error whenever I open emacs:
error while checking syntax automatically wrong-type-argument wholenump, nil
I believe this is related to flycheck? Has anyone seen this before?
Can flycheck be used for custom compilers. For example, if my company uses their own compiler can I use that compiler with flycheck? I think the flycheck-define-checker function can do it, but our command line has to be initialized with a special command before our compiler can be run.
I'm using flycheck with markdown. I have a .markdownlint.json file in project root, but running flycheck-verify-setup reports that markdownlint is disable because the configuration file was not found. what can I do?
Nicolas Gimenez
Hi there! I'm using Spacemacs & Flycheck with Javascript-Eslint. Overall, it works. But at a specific error, when typing flycheck-next-error, it refuses to go on.
I must move the cursor down the file for flycheck-next-error to work again. See the attached .gif. Do you guys have any clue where this comes from?
Evan Hackett
Hey I'm having difficulty enabling a checker. I'm trying to enable javascript-standard in spacemacs. The executable is found, but I don't know how to enable it.
Screenshot from 2020-04-30 11-43-53.png
Clément Pit-Claudel
@evanhackett just reverting your buffer should work. What you're seeing is what happens when a package gets installed after the buffer is first opened.
Michael Wayne Goodman
I recently updated my OS and now flycheck is running mypy from within a package instead of the project root. E.g., say I have myproject/ as the project root, and I open myproject/mypackage/mymodule.py, it is running mypy with myproject/mypackage/ as the default-directory instead of myproject/.
This used to work and I'm not sure what has changed. I think I'm using the same Emacs config. I don't have (nor did I have before) any .dir-locals file, nor any mypy.ini or setup.cfg file in the project root. I see that the upcoming version 32 of flycheck will allow for better configuration for these landmark config files, but is there anything I can do now?
Michael Wayne Goodman
Er, by "within a package" I was using Python terminology. I meant "within a subdirectory". Also some more info: making a blank mypy.ini file in the project root did not help it find the right top-level directory. And I'm opening Emacs from the project root directory.
Clément Pit-Claudel
@goodmami You can install Flycheck from melpa, and you'll get the latest version; if things don't workfor you there, please open a new issue, or post in an existing one on the tracker
Michael Wayne Goodman
@cpitclaudel thanks I'll try the latest version
Thor Michael Støre
Hey! I'm having a small issue getting pylint to run right through flycheck. I have a project directory with a root source directory beneath it, when I run pylint from the command line for the whole source directory it works fine, while when I specify a single file I need to add that source directory to the python path or I get import errors. But if I try that in emacs by setting PYTHONPATH in .dir-locals for that project, and opening a source file in that directory with flycheck enabled, I still get import errors from pylint. Does flycheck not pass on environment variables? It's no real problem if that's the way it is supposed to be, as-is I tweak sys.path in .pylintrc, I just wanted to avoid that since it's a less general solution.
Clément Pit-Claudel
@thormick_gitlab Indeed, binaries are started with the same environment as emacs was started with. It's a bit odd that you need to change PYTHON_PATH. Could you check if flycheck/flycheck#1771 helps?
Thor Michael Støre
@cpitclaudel Yeah, the whole PYTHONPATH thing is a bit of a hack, the way someone set up the project I'm on there is a separate tests directory, which makes me need to add the source directory in certain cases anyhow, and I was looking for a minimal, catch-all solution. flycheck/flycheck#1771 didn't help, but after a bit more investigation there seems to be more up. The whole way it's documented at http://pylint.pycqa.org/en/latest/faq.html#can-i-give-pylint-a-file-as-an-argument-instead-of-a-module doesn't seem to work even from the command line, so I think I've screwed up something else elsewhere. Thanks for the help either way!
Thor Michael Støre
Nevermind, seems I've run into a pylint bug/regression: PyCQA/pylint#2862
Vince W.
I'm struggling a little with a small fortran configuration. By default it seems that flycheck is showing me errors for the use of gnu extensions. By default the compiler won't even show that there's a problem without feeding it the -pedantic flag, but the warning flags are set to ("all" "extra") and the args passed to the compiler should be very simple. Looking for a little guidance on how to make these error notices go away
Brandon Shega
I'm not sure if this is a Doom Emacs issue or a flycheck issue, I've posted in the Doom discord but I'm not getting a response so I thought maybe I would ask here. Flycheck looks like it's creating a temporary version of the file flycheck_file.ts but for some reason only with Doom, this isn't getting changed back so our gulp task is failing saying that the glob argument is invalid when tslint is ran.
WARNING: (only-arrow-functions) /Users/brandonshega/Documents/dev/scripts/app/userInputs/flycheck_mediaFormCtrl.ts[403, 56]: non-arrow functions are forbidden
Brandon Shega
Digging deeper this seems to be an issue with tslint since that isn't running in Spacemacs
Steven Fernandez

Anyone have any insight on this error in ruby-mode:

Suspicious state from syntax checker ruby: Flycheck checker ruby returned 1, but its output contained no errors: ruby: /usr/lib/x86_64-linux-gnu/libcrypt.so.1: version `XCRYPT_2.0' not found (required by /home/sfernandez/.rbenv/versions/2.7.1/lib/libruby.so.2.7)

Try installing a more recent version of ruby, and please open a bug report if the issue persists in the latest release.  Thanks!

Not sure if it's a Flycheck checker error, but I came across this on the trouble shooting page as a common error. As suggested I ran flycheck-verify-setup and everything looks right:

First checker to run:

    - may enable:    yes
    - executable:    Found at /home/sfernandez/.rbenv/shims/ruby
    - next checkers: ruby-rubylint

I also have a stack overflow post running here: https://stackoverflow.com/questions/62623392/ruby-usr-lib-x86-64-linux-gnu-libcrypt-so-1-version-xcrypt-2-0-not-found-r

But i'm losing hope, thanks all

Cody Goodman
@stutterz Shot in the dark and I could disappear without warning but... That seems to imply your ruby installation is broken or /usr/lib/x86_64-linux-gnu/libcrypt.so.1 isn't in the... what was it... C_INCLUDE_PATH maybe?
I would also try to figure out what the exact command being run on a ruby file is. Maybe from a ruby file you can do M-x flycheck-compile and see the command. Then try to run that same command in your terminal and see if you get the same error.
Steven Fernandez

@codygman I came across another post that was talking about LD_INCLUDE_PATH? I tried exporting it on command line with export LD_LIBRARY_PATH=/usr/lib:$LD_LIBRARY_PATH but that didn't work, apparently there are many locations for libcrypt.so.1 or something? I'm not sure though
ok thanks for the advice will try flycheck-compile and see

Tried what you suggested. Not sure what this means, but there seems to be a disconnect here?

I ran flycheck-compile and here's the result i got in compilation buffer:

-*- mode: compilation; default-directory: "~/the-odin-project/ruby/baby_ruby/" -*-
Compilation started at Sun Jun 28 14:49:41

/home/sfernandez/.rbenv/shims/ruby -w -c < /home/sfernandez/the-odin-project/ruby/baby_ruby/hello.rb
ruby: /usr/lib/x86_64-linux-gnu/libcrypt.so.1: version `XCRYPT_2.0' not found (required by /home/sfernandez/.rbenv/versions/2.7.1/lib/libruby.so.2.7)

Compilation exited abnormally with code 1 at Sun Jun 28 14:49:41

I ran the command /home/sfernandez/.rbenv/shims/ruby -w -c < /home/sfernandez/the-odin-project/ruby/baby_ruby/hello.rb on command line and got: Syntax OK

Arjun Nair
Hey, I don't know if this is the right place to ask but I wanted to work on a toy haskell project which allows me to infer types of values when I highlight some value. I was told that flycheck has this ability. If so, I was wondering how it was done, and how I could write something similar for my sideproject.
Ben Krocké

Hello, my javascript-eslint checker returns a missing/incorrect config file. The executable IS found, and it points to the project's node-modules eslint package.
There is a .eslintrc.js file in the root of the project.
Running 'eslint --print-config path/to/file.ts' returns the correct json without any errors.

I have installed exec-path-from-shell-initialize, but it has no effect.

Any ideas?

Hi, I’m using the javascript-eslint checker and it works great. The only quibble I have is that it uses the same severity levels as eslint, so an eslint error is an error and an eslint warning is a warning. This is logical, but I find it a bit awkward to deal with. Is there a way I can locally configure the checker to change the levels to warning and info, respectively?
If nothing else, I can probably add advice around flycheck-parse-eslint, so it’s not an insurmountable problem. I was just wondering whether there’s an official or cleaner way.
Bob Allegretti
Is there anyway to run python-pycompile after (or before) python-flake8? Flake8 is not catching all syntax errors very well and when I try to chain using (flycheck-add-next-checker 'python-pycompile 'python-flake8) emacs fails with void-function error.
1 reply
Ludovic Bellière

I'm wondering if the following might be considered a bug. Using emacs to write sphinx documention, flycheck automatically detects the source directory of the sphinx project. However the sphinx project is part of another bigger project that is contained within a virtual environment, as python projects tends to. As such, any special extensions required by the sphinx documentation will fail to load because flycheck doesn't take care of loading the proper environment before finding sphinx-build.

Even if I manually activate the pipenv, the environment in which flycheck execute doesn't change.

Michael Peyton Jones
I'm trying to figure out the right behaviour for a checker "superseding" an inbuilt one. Specifically, if you are using a lsp-mode integration, that provides a flychecker which is usually better than the ones built-in to flycheck. However, I've observed at least some examples where both run, which is typically undesirable (slow, sometimes the non-lsp one may just not work). What's the best way to handle this? Programmatically disable the built-in checker from the lsp-mode client?
(some discussion in the lsp-mode repo here: emacs-lsp/lsp-mode#2207)
Michael Peyton Jones
it's also possible that there's something buggy going on here, in that I seem to have a checker which is listed as "could run if selected", but I see errors relating to it actually running in Messages
Hello there! I've got an issue with python-pylint checker: syl20bnr/spacemacs#13975 It seems to be a flycheck issue but I'm not sure where to look to find out what's going on. Could anyone take a look?