"Flycheck cannot use this syntax checker for this buffer."

[MarTango]

Relevant lines in my init.el:

(defun my/php-mode-hook ()
  "Gets run on php-mode load."
  (make-local-variable 'company-backends)
  (add-to-list 'company-backends 'company-phpactor)
  (flycheck-select-checker 'phpstan)
  (setq php-mode-coding-style 'psr2
        c-basic-offset 4)
  (when (eq 0 (buffer-size))
    (insert "<?php\n\n")))

(use-package php-mode :ensure t
  :init (add-hook 'php-mode-hook #'my/php-mode-hook))
(use-package flycheck-phpstan :ensure t :after (php-mode flycheck))

The buffer that appears when I open PHP file:

Syntax checker in buffer MyFile.php in php-mode:

  phpstan (disabled)
    - major mode: `php-mode' supported
    - may enable: Automatically disabled!
    - executable: Found at /usr/local/bin/php

Flycheck cannot use this syntax checker for this buffer.

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

--------------------

Flycheck version: 32snapshot (package: 20180422.2106)
Emacs version:    26.1
System:           x86_64-apple-darwin17.5.0
Window system:    ns

PHPStan Project Version - installed using project's composer. PHPStan - PHP Static Analysis Tool dev-master@de7fd7d

[MarTango]

Using vendor/bin/phpstan analyse src works as expected

[kermorgant]

I've stumbled on the same issue several times. Haven't taken time to really look into it, but adding project specific configuration like below have often helped

((nil . ((php-project-root . git)
         (phpstan-executable . "/home/mikael/bin/phpstan")
         (phpstan-working-dir . (root . "."))
         (phpstan-config-file . (root . "./phpstan.neon"))
         (phpstan-level . 7))))

[kermorgant]

just noticed that adding/removing the specific line below makes a difference

         (phpstan-config-file . (root . "./phpstan.neon"))

[MarTango]

Ah. I've only tried out the package (and phpstan) on a project without a config file - might be why it's not working

On Thu, 17 May 2018, 20:14 Mikael Kermorgant, [email protected] wrote:

just noticed that the specific line below makes a difference

     (phpstan-config-file . (root . "./phpstan.neon"))

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[cyrialize]

What is the significance of phpstan.neon? Is that an automatically generated file?

[kermorgant]

It's phpstan's configuration file

[kermorgant]

I'm not sure of how I should read the code but I suspect this issue takes its root somewhere around that part.

@zonuexe do I understand correctly the situation when I say a phpstan config file is required ?

[olapersson]

Spent some time with the same error, in my case I was trying to use a leading . in the config file (.phpstan.neon), removing the dot made things work.