Configure Emacs for Erlang development

[by]

Yes, same configuration may behave differently because of different package versions.

A working package does not mean it will keep working in future updates. The documentation and change log become significant in this case.

Yao

>> 在 2019年11月4日，23:16，Tristan Sloughter <t@REDACTED> 写道：
> 
> Hey, that is from my config in adoptingerlang but I don't have it currently separated out and published. Though I did do that at one point to test this and hopefully can find that and I will upload that file and link to it from adoptingerlang.
> 
> I don't have a good answer for you right now, sadly when I see errors like that I tend to just keep refershing the Emacs and package registry and updating the packages... sometimes having to uninstall and reinstall packages and eventually it works.
> 
> Emacs package management is not the best.. hehe, as far as I know you can't specify a version of a package and can't lock dependencies.
> 
> Tristan
> 
>> On Mon, Nov 4, 2019, at 06:30, by wrote:
>> Hi,
>> 
>> I followed the guide with link (From Adopting Erlang): https://adoptingerlang.org/docs/development/setup/
>> Seems "ivy-erlang-complete" is not properly configured.
>> 
>> Here is some environment information:
>> Erlang version: Erlang/OTP 22.1.4
>> Emacs version: GNU Emacs 25.3.1
>> 
>> And here is my related ~/.emacs configuration for Erlang:
>> ====
>> ;; for ivy-erlang-complete                                                                                                      
>> (use-package ivy-erlang-complete
>>   :ensure t)
>> 
>> ;; for delight                                                                                                                  
>> (use-package delight
>>   :ensure t)
>> 
>> ;; for flycheck                                                                                                                 
>> (use-package flycheck
>>   :ensure t
>>   :delight
>>   :config (global-flycheck-mode))
>> 
>> ;; for erlang                                                                                                                   
>> (use-package erlang
>>   :load-path (“/<PATH>/lib/erlang/lib/tools-3.2.1/emacs")
>>   :hook (after-save . ivy-erlang-complete-reparse)
>>   :custom (ivy-erlang-complete-erlang-root "/<PATH>/lib/erlang")
>>   :config (ivy-erlang-complete-init)
>>   :mode (("\\.erl?$" . erlang-mode)
>>      ("rebar\\.config$" . erlang-mode)
>>      ("relx\\.config$" . erlang-mode)
>>      ("sys\\.config\\.src$" . erlang-mode)
>>      ("sys\\.config$" . erlang-mode)
>>      ("\\.config\\.src?$" . erlang-mode)
>>      ("\\.config\\.script?$" . erlang-mode)
>>      ("\\.hrl?$" . erlang-mode)
>>      ("\\.app?$" . erlang-mode)
>>      ("\\.app.src?$" . erlang-mode)
>>      ("\\Emakefile" . erlang-mode)))
>> ====
>> 
>> When I restart my emacs with above configuration, I got error message as below:
>> ====
>> Error (use-package): erlang/:config: Symbol’s function definition is void: ivy-erlang-complete-setup-flycheck
>> ====
>> I have no clue about what happened.
>> 
>> An example ~/.emacs file related to Erlang would be very helpful.
>> 
>> I searched it with Google, but seems no typical configuration demo/example exist for configuring Emacs with Erlang.
>> 
>> By the way, I want to ask: what kind of editor configuration do you use to develop Erlang every day?
>> 
>> Yao
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