Need help with autocompletion with company and lsp-mode

[lester]

Hey

I've an problem with auto completion not working. I tested it in the 
different file modes like Emacs Lisp and C++.

Any help is appreciated.

My config:

;;; init.el --- my gnu emacs config
;;; Commentary:

;;; Code:

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; use straight.el for package management
(defvar bootstrap-version)
(let ((bootstrap-file
       (expand-file-name "straight/repos/straight.el/bootstrap.el" 
user-emacs-directory))
      (bootstrap-version 6))
  (unless (file-exists-p bootstrap-file)
    (with-current-buffer
        (url-retrieve-synchronously

"https://raw.githubusercontent.com/radian-software/straight.el/develop/install.el";
         'silent 'inhibit-cookies)
      (goto-char (point-max))
      (eval-print-last-sexp)))
  (load bootstrap-file nil 'nomessage))

;; install use-package using straight.el
(straight-use-package 'use-package)

;; configure use-package to use straight.el by default
(use-package straight
  :custom
  (straight-use-package-by-default t))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; utf-8 everywhere
(prefer-coding-system 'utf-8)
(set-default-coding-systems 'utf-8)
(set-terminal-coding-system 'utf-8)
(set-keyboard-coding-system 'utf-8)
;; backwards compatibility as default-buffer-file-coding-system
;; is deprecated in 23.2.
(if (boundp 'buffer-file-coding-system)
    (setq-default buffer-file-coding-system 'utf-8)
  (setq default-buffer-file-coding-system 'utf-8))

;; Treat clipboard input as UTF-8 string first; compound text next, etc.
(setq x-select-request-type '(UTF8_STRING COMPOUND_TEXT TEXT STRING))

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;; disable startup screen
(setq inhibit-startup-screen t)

;; disable menu bar, scroll bar, and tool bar
(menu-bar-mode -1)
(scroll-bar-mode -1)
(tool-bar-mode -1)

;; disable dialog boxes
(setq use-dialog-box nil)

;; set custom color scheme
(use-package doom-themes)
(use-package doom-moonfly-theme
  :straight (:host github :repo "stackmystack/doom-moonfly-theme"
                   :branch "master"))
(load-theme 'doom-moonfly t)

;; set default font
(set-face-attribute 'default nil
                    :family "MesloLGS Nerd Font Mono"
                    :height 130
                    :weight 'normal
                    :width 'normal)

;; always ask using y or n instead yes or no
(defalias 'yes-or-no-p 'y-or-n-p)

;; disable annoying bell
(setq ring-bell-function 'ignore)

;; auto close bracket insertion
(electric-pair-mode 1)

;; display line numbers
(require 'display-line-numbers)

(defcustom display-line-numbers-exempt-modes
  '(vterm-mode eshell-mode shell-mode term-mode ansi-term-mode)
  "Major modes on which to disable line numbers."
  :group 'display-line-numbers
  :type 'list
  :version "green")

(defun display-line-numbers--turn-on ()
  "Turn on line numbers except for certain major modes.
Exempt major modes are defined in `display-line-numbers-exempt-modes'."
  (unless (or (minibufferp)
              (member major-mode display-line-numbers-exempt-modes))
    (display-line-numbers-mode)))

(global-display-line-numbers-mode)

;; C-x C-; is not properly handled in terminal emulator so let's
;; add custom key binding for toggling comments in line
(defun toggle-comment-on-line ()
  "Comment or uncomment current line."
  (interactive)
  (comment-or-uncomment-region (line-beginning-position) 
(line-end-position)))
(global-set-key (kbd "C-c ;") #'toggle-comment-on-line)

;; change indentation level for languages with C-like syntax
(setq-default c-basic-offset 4)

;; lsp-mode
(use-package lsp-mode
  :commands (lsp lsp-deferred)
  :custom
  (lsp-auto-guess-root t)
  (lsp-log-io t)
  (read-process-output-max (* 1024 1024))
  (lsp-idle-delay 0.5)
  (lsp-prefer-flymake nil))

;; company
(use-package company
  :after lsp-mode
  :bind
  (:map company-active-map
        ("<tab>" . company-complete-selection))
  (:map lsp-mode-map
        ("<tab>" . company-indent-or-complete-common))
  :custom
  (company-minimum-prefix-length 1)
  (company-idle-delay 0.0) ;; default is 0.2
  :hook ((text-mode . company-mode)
         (prog-mode . company-mode)
         (org-mode . company-mode)
         ;(company-mode . yas-minor-mode)))
         (lsp-mode . company-mode)))

;; flycheck
(use-package flycheck
  :ensure t
  :init (global-flycheck-mode))

(use-package flycheck-color-mode-line)
(eval-after-load "flycheck"
  '(add-hook 'flycheck-mode-hook 'flycheck-color-mode-line-mode))

(use-package flycheck-pos-tip)
(with-eval-after-load 'flycheck
  (flycheck-pos-tip-mode))

(add-to-list 'display-buffer-alist
             `(,(rx bos "*Flycheck errors*" eos)
              (display-buffer-reuse-window
               display-buffer-in-side-window)
              (side            . bottom)
              (reusable-frames . visible)
              (window-height   . 0.33)))

;; sudoers mode
(use-package etc-sudoers-mode)

;; systemd mode
(use-package systemd)

(provide 'init)
;;; init.el ends here