Error with window

[georgtree]

Hello!
I frequently got this error:

Window #<window 7 on fileName<projectName>> has same side left as window #<window 11 on  *Treemacs-Scoped-Buffer-No Tab*> but no common parent

it prevents from creating or removing windows, and I don't know how to get rid of it.
Config is:

(use-package treemacs
  :ensure t
  :defer t
  :init
  (with-eval-after-load 'winum
    (define-key winum-keymap (kbd "M-0") #'treemacs-select-window))
  :config
  (progn
    (setq treemacs-collapse-dirs                   (if treemacs-python-executable 3 0)
          treemacs-deferred-git-apply-delay        0.01
          treemacs-directory-name-transformer      #'identity
          treemacs-display-in-side-window          t
          treemacs-eldoc-display                   'simple
          treemacs-file-event-delay                2000
          treemacs-file-extension-regex            treemacs-last-period-regex-value
          treemacs-file-follow-delay               0.01
          treemacs-file-name-transformer           #'identity
          treemacs-follow-after-init               t
          treemacs-expand-after-init               t
          treemacs-find-workspace-method           'find-for-file-or-pick-first
          treemacs-git-command-pipe                ""
          treemacs-goto-tag-strategy               'refetch-index
          treemacs-header-scroll-indicators        '(nil . "^^^^^^")
          treemacs-hide-dot-git-directory          t
          treemacs-indentation                     2
          treemacs-indentation-string              " "
          treemacs-is-never-other-window           t
          treemacs-max-git-entries                 5000
          treemacs-missing-project-action          'ask
          treemacs-move-files-by-mouse-dragging    t
          treemacs-move-forward-on-expand          nil
          treemacs-no-png-images                   nil
          treemacs-no-delete-other-windows         nil
          treemacs-project-follow-cleanup          nil
          treemacs-persist-file                    (expand-file-name ".cache/treemacs-persist" user-emacs-directory)
          treemacs-position                        'left
          treemacs-read-string-input               'from-child-frame
          treemacs-recenter-distance               0.1
          treemacs-recenter-after-file-follow      nil
          treemacs-recenter-after-tag-follow       nil
          treemacs-recenter-after-project-jump     'always
          treemacs-recenter-after-project-expand   'on-distance
          treemacs-litter-directories              '("/node_modules" "/.venv" "/.cask")
          treemacs-project-follow-into-home        nil
          treemacs-show-cursor                     nil
          treemacs-show-hidden-files               t
          treemacs-silent-filewatch                nil
          treemacs-silent-refresh                  nil
          treemacs-sorting                         'alphabetic-asc
          treemacs-select-when-already-in-treemacs 'move-back
          treemacs-space-between-root-nodes        t
          treemacs-tag-follow-cleanup              t
          treemacs-tag-follow-delay                1.5
          treemacs-text-scale                      nil
          treemacs-user-mode-line-format           nil
          treemacs-user-header-line-format         nil
          treemacs-wide-toggle-width               50
          treemacs-width                           50
          treemacs-width-increment                 1
          treemacs-width-is-initially-locked       t
          treemacs-workspace-switch-cleanup        nil)

    ;; The default width and height of the icons is 22 pixels. If you are
    ;; using a Hi-DPI display, uncomment this to double the icon size.
    ;;(treemacs-resize-icons 44)

    (treemacs-follow-mode t)
    (treemacs-filewatch-mode t)
    (treemacs-fringe-indicator-mode 'always)
    (when treemacs-python-executable
      (treemacs-git-commit-diff-mode t))

    (pcase (cons (not (null (executable-find "git")))
                 (not (null treemacs-python-executable)))
      (`(t . t)
       (treemacs-git-mode 'deferred))
      (`(t . _)
       (treemacs-git-mode 'simple)))

    (treemacs-hide-gitignored-files-mode nil))
  :bind
  (:map global-map
        ("M-0"       . treemacs-select-window)
        ("C-x t 1"   . treemacs-delete-other-windows)
        ("C-x t t"   . treemacs)
        ("C-x t d"   . treemacs-select-directory)
        ("C-x t B"   . treemacs-bookmark)
        ("C-x t C-t" . treemacs-find-file)
        ("C-x t M-t" . treemacs-find-tag)))

(use-package treemacs-evil
  :after (treemacs evil)
  :ensure t)

(use-package treemacs-projectile
  :after (treemacs projectile)
  :ensure t)

(use-package treemacs-icons-dired
  :hook (dired-mode . treemacs-icons-dired-enable-once)
  :ensure t)

(use-package treemacs-magit
  :after (treemacs magit)
  :ensure t)

(use-package treemacs-persp ;;treemacs-perspective if you use perspective.el vs. persp-mode
  :after (treemacs persp-mode) ;;or perspective vs. persp-mode
  :ensure t
  :config (treemacs-set-scope-type 'Perspectives))

(use-package treemacs-tab-bar ;;treemacs-tab-bar if you use tab-bar-mode
  :after (treemacs)
  :ensure t
  :config (treemacs-set-scope-type 'Tabs))

(add-hook 'emacs-startup-hook 'treemacs)

Thank you in advance

[georgtree]

Error is similar too this issue:

#734

[stale]

This issue has been automatically marked as stale because it has not had recent activity (this bot only works as a reminder, it will not close issues).

[Alexander-Miller]

The error indicates that something has gone very wrong in the state of your windows and put them into an invalid state. Treemacs does not do anything special - by default it just spawns as a side window. This behavior is controlled by treemacs-display-in-side-window.

You should be able to get out of this by spawning a new frame and closing the previous one.

Unfortunately I can't say what's causing this, probably some other package or mode that manipulates windows in a way that doesn't agree with side windows. The only one I know of is the builtin windmove, but that was patched some time ago.

If you use windmove updating treemacs should fix your issue. If not I will a reproduction recipe to help further.

[georgtree]

I suspect that this is a conflict with centaur-tabs package - treemacs spawn new tabs, and if I click on it, the two treemacs windows appears at the same time.

[Alexander-Miller]

Use this to check if it's a general side-window problem:

(display-buffer-in-side-window (get-buffer-create "Test Buffer") '((side . left) (slot . 1)))

That will spawn a side-window the same way that treemacs does. If you experience the same issues as with treemacs then it's on centaur tabs to integrate with side-windows.

[Alexander-Miller]

I am also curious about *Treemacs-Scoped-Buffer-No Tab*. The name indicates that you're using treemacs' tab-bar integration. However, AFAIU centaur-tabs is it's own independent tabs provider. Your config also shows you adding treemacs-persp. These are contradictions, both packages decide what treemacs buffers are scoped to - the current tab, the current perspective, or, by default, the current frame.

It looks like you copied a bit too much from the example setup. I don't know what your setup is intended to look like, but you only need one, if any, extra scope package.