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I'm running on mac os x. I have a file at /Users/Max/.emacs with this inside:

(add-to-list 'load-path “/Users/Max/emacs/tuareg-mode/”)
(load "tuareg-mode-startup”)

I have a folder at /Users/Max/emacs/tuareg-mode/ with these files inside which I got from tuareg 2.0.6 and extracted to my 'tuareg-mode' folder:

>Makefile  
ocamldebug.el  
README  
tuareg-pkg.el  
tuareg.el

edit: Got the 2.0.7 files in my 'tuareg-mode' folder instead, here they are:

>Makefile  
ocamldebug.el  
README  
tuareg-pkg.el  
tuareg.el  
tuareg-site-file.el

The error I'm getting when I open emacs is such:

Warning (initialization): An error occurred while loading `/Users/Max/.emacs':

Symbol's value as variable is void: “/Users/Max/emacs/tuareg-mode/”

To ensure normal operation, you should investigate and remove the cause of the error in your initialization file. Start Emacs with the `--debug-init' option to view a complete error backtrace.

Starting emacs with the --debug-init option gives me this:

Debugger entered--Lisp error: (void-variable “/Users/Max/emacs/tuareg-mode/”) (add-to-list (quote load-path) “/Users/Max/emacs/tuareg-mode/”) eval-buffer(# nil "/Users/Max/.emacs" nil t) ; Reading at buffer position 57
load-with-code-conversion("/Users/Max/.emacs" "/Users/Max/.emacs" t t) load("~/.emacs" t t) #[0 "\205\262 \306=\203\307\310Q\202; \311=\204\307\312Q\202;\313\307\314\315#\203*\316\202;\313\307\314\317#\203:\320\nB\321\202;\316\322\323\322\211#\210\322=\203a\324\325\326\307\327Q!\"\323\322\211#\210\322=\203\210\203\243\330!\331\232\203\243\332!\211\333P\334!\203}\211\202\210\334!\203\207\202\210\314\262\203\241\335\"\203\237\336\337#\210\340\341!\210\266\f?\205\260\314\323\342\322\211#)\262\207" [init-file-user system-type delayed-warnings-list user-init-file inhibit-default-init inhibit-startup-screen ms-dos "~" "/_emacs" windows-nt "/.emacs" directory-files nil "^\\.emacs\\(\\.elc?\\)?$" "~/.emacs" "^_emacs\\(\\.elc?\\)?$" (initialization "_emacs' init file is deprecated, please use `.emacs'") "~/_emacs" t load expand-file-name "init" file-name-as-directory "/.emacs.d" file-name-extension "elc" file-name-sans-extension ".el" file-exists-p file-newer-than-file-p message "Warning: %s is newer than %s" sit-for 1 "default"] 7 "\n\n(fn)"]() command-line() normal-top-level()

I'm new Mac OS and completely new to OCaml. I don't see what I've done wrong. Why can't it load the path?

Thanks a lot.

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7
  • Maybe you want (load "/Users/Max/emacs/tuareg-mode/tuareg-mode-startup.el") - beware of the double quotes! Commented Sep 19, 2014 at 11:25
  • Where exactly am I supposed to find this tuareg-mode-startup.el file? All the files that I downloaded in the 2.0.6 package are listed above in my question Commented Sep 19, 2014 at 11:33
  • Remove the trailing backslash from the path in your load-path. Commented Sep 19, 2014 at 11:35
  • Still getting the same error Commented Sep 19, 2014 at 11:47
  • I found out there was a new version of tuareg (2.0.7) so I downloaded it and replaced the contents of the 'tuareg-mode' folder with the files in 2.0.7 Still the same error Commented Sep 19, 2014 at 11:53

2 Answers 2

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3

You don't have the correct quotes.

Strings must be surrounded by plain ascii "" quotes.

Otherwise the lisp reader will happily treat them as part of a symbol name, which is why it's treating “/Users/Max/emacs/tuareg-mode/” as a variable.

This:

(add-to-list 'load-path "/Users/Max/emacs/tuareg-mode/")
(load "tuareg-mode-startup")

Not:

(add-to-list 'load-path “/Users/Max/emacs/tuareg-mode/”)
(load "tuareg-mode-startup”)
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3 Comments

That makes it much more clear, thanks. Now when I try and run ocaml within tuareg it says it cannot find it. I assume I need to set up paths or something, but I don't know where they are? I think my ocaml was saved to "usr/..." something but I can't even find that folder on my drive.
What's the difference between the two?
Well one is ascii character 34 -- " -- which, to the elisp reader, denotes the beginning or end of a string literal, and which is generated when you type the " key on your keyboard. The other is some unicode character -- “ -- which has no special meaning to elisp at all. If you just mean that you can't see a difference between the two, that's a problem with your web browser or your selected font.
1

If you've got a recent version of Emacs, I strongly recommend using package.el to install packages. It will take care of putting things in the right place for you. package.el ships with Emacs 24, and there is a version that you can install for Emacs 23.

Once you have package.el installed, you can install packages using M-x package-list-packages or M-x package-install. From the former, find a package you wish to install, mark it with i, and apply the marked actions with x.

Out of the box, package.el only gives you access to the GNU ELPA (Emacs Lisp Package Archive), which doesn't have very many packages. But there are third-party repositories that contain a lot more. I recommend using MELPA stable, which does provide tuareg. Something like this should get you started:

(require 'package)
(package-initialize)

(add-to-list 'package-archives
             '("melpa-stable" . "http://melpa-stable.milkbox.net/packages/") t)

There are other cool things you can do with package.el as well. If you're interested, I recommend checking out use-package in particular.

See EmacsWiki for more.

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