我正在尝试在Windows上配置Emacs,并且我想在我的配置中插入一个"use-package"包,但是当我按下Emacs上执行时显示消息"符号的函数定义无效:使用 - 包"
(setq inhibit-startup-message t)
(require 'package)
(setq package-enable-at-startup nil)
(add-to-list 'package-archives '("melpa" . "https://melpa.org/packages/"))
(add-to-list 'package-archives '("gnu" . "https://elpa.gnu.org/packages/"))
(package-initialize)
(unless (package-installed-p 'use-package)
(package-refresh-contents)
(package-install 'use-package))
有时我收到错误消息"use-package不可用".
Debugger entered--Lisp error: (void-function package-installed-p)
(package-installed-p (quote use-package))
(if (package-installed-p (quote use-package)) nil (package-refresh-contents) (package-install (quote use-package)))
eval((if (package-installed-p (quote use-package)) nil (package-refresh-contents) (package-install (quote use-package))) nil)
elisp--eval-last-sexp(nil)
eval-last-sexp(nil)
funcall-interactively(eval-last-sexp nil)
call-interactively(eval-last-sexp nil nil)
command-execute(eval-last-sexp)