Only load auctex if xelatex is found.

init.el

@@ -1,5 +1,5 @@
 ;;; init.el --- tastytea's Emacs init file.
-;;; Time-stamp: <2019-03-30 17:50:46 CET>
+;;; Time-stamp: <2019-03-30 18:14:19 CET>
 
 ;;; Commentary:
 ;;; I am using this file with Emacs 26, but most of it will probably work with
@@ -658,12 +658,13 @@
 
 ;;;;;;;;;;;;;;;;;;;; LaTeX ;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
 (use-package tex-site
+  :if (executable-find "xelatex")
   :ensure auctex
   :custom
   (TeX-parse-self t)               ; Enable parse on load.
   (TeX-auto-save t)                ; Enable parse on save
   (TeX-PDF-mode t)                 ; PDF mode (rather than DVI-mode)
-  (TeX-engine 'xetex)
+  (TeX-engine 'xelatex)
   ;; To use pdf-tools with auctex.
   ;; https://emacs.stackexchange.com/a/21764/21935
   (TeX-view-program-selection '((output-pdf "PDF Tools")))
@@ -677,6 +678,7 @@
 
 ;; Auto complete for LaTeX.
 (use-package company-auctex
+  :after auctex
   :hook
   (LaTeX-mode . company-auctex-init))
 

server/server

@@ -1,2 +1,2 @@
-127.0.0.1:51313 6224
+127.0.0.1:51313 2297
 phahw2ohVoh0oopheish7IVie9desh8aequeenei3uo8wahShe%thuadaeNa4ieh