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								<p>Hey all, I’m trying to get spacemacs, elixir-ls (the fork), and friends to play nice on Ubuntu.</p>
<p>I think I’ve followed all the steps correctly, but am getting:</p>
<p><code>File mode specification error: (wrong-type-argument lsp-session [cl-struct-lsp-session ( *** GIANT LIST OF ALL MY ELIXIR, RUST AND PYTHON projects (LSP!) *** ) nil #s(hash-table size 65 test equal rehash-size 1.5 rehash-threshold 0.800000011920929 data ()) #s(hash-table size 65 test equal rehash-size 1.5 rehash-threshold 0.800000011920929 data ()) #s(hash-table size 65 test equal rehash-size 1.5 rehash-threshold 0.800000011920929 data ())])</code></p>
<p>Any advice?</p> 
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								<p>Hmmm, I’m not sure about what would cause that. Are you using a recent version of Emacs? (at least 26?). I’m really not sure where the list of your elixir, rust, and python projects are coming from because I didn’t think that lsp-mode stored a list like that. Is your Spacemacs setup pretty vanilla or have you customized it already?</p> 
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								<p>0.300.0@26.1 (spacemacs) on Ubuntu 19.04. I try to keep my Spacemacs setup as close to vanilla as possible.</p>
<p>Do you have a .spacemacs file to copy or are there diagnostic steps i can take to make sure i’ve got elixir-ls installed correctly?</p>
<p>Thanks for the great resource, I’ve been looking for exactly this.</p> 
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								<p>I am using spacemacs latest develop 0.300.0@26.1 too with <a href="https://github.com/JakeBecker/elixir-ls" class="inline-onebox" rel="noopener nofollow ugc">GitHub - JakeBecker/elixir-ls: A frontend-independent IDE "smartness" server for Elixir. Implements the JSON-based "Language Server Protocol" standard and provides debugger support via VS Code's debugger protocol. · GitHub</a> – <code>lsp</code> layer, <code>auto-completion</code> layer it’s working.<br>
One bit that I found out is that you have to use the same elixir/otp version in elixir_ls and the one in the project that you are working on.<br>
Although I am not sure about your specific error, i hope that this helps!</p>
<p>…and welcome!</p> 
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								<p>I started over from vanilla with JakeBecker’s elixir-ls and it’s working now. Not sure what I did wrong but thanks all for the help.</p> 
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								<p>I’m glad you got it working!</p> 
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								<p>Hi, all. Thank you for the great information about Elixir setup for Emacs.</p>
<p>How do you get Emacs checking syntax errors as a linter?</p>
<p>After a quick research, I found flycheck and flymake didn’t support Elixir officially.<br>
In <a href="https://www.flycheck.org/en/latest/community/extensions.html#elixir" rel="noopener nofollow ugc">flycheck document</a>, there’s a recommendation for Elixir syntax checker <a href="https://github.com/tomekowal/flycheck-mix" rel="noopener nofollow ugc">flycheck-mix</a>, and several packages are listed on <a href="https://melpa.org/#/?q=elixir" rel="noopener nofollow ugc">melpa</a> like <a href="https://github.com/aaronjensen/flycheck-credo" rel="noopener nofollow ugc">flicheck-credo</a> and <a href="https://github.com/syl20bnr/flymake-elixir" rel="noopener nofollow ugc">flymake-elixir</a>. But it seems these extensions are outdated and also their development is stopped.</p>
<p>What packages do you use for syntax checking in Emacs? It’s good to mention it in this wiki, I think. Thanks.</p> 
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								<p>What kind of linting do you miss?</p>
<p>Syntax errors and compile time warnings are marked properly when I do use emacs and the ELS. I did not configure something special, its just that <code>flycheck</code> is part of my base configuration.</p>
<p>I tend to not use <code>credo</code> at all though. Formatter does most of the things I used credo for back when I used it. And I do not agree with a lot of the other lints and would disable many anyway…</p> 
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								<p>Compile time messages are useful, but inline warnings when writing source code are also convenient in my opinion.</p>
<blockquote>
<p>Syntax errors and compile time warnings are marked properly when I do use emacs and the ELS.</p>
</blockquote>
<p>Maybe I’m missing something, can elixir-ls indicate syntax errors alongside the line numbers or something?</p>
<p>In my case, I set up code formatting when I save the buffer according to <a href="https://github.com/elixir-editors/emacs-elixir#elixir-format" rel="noopener nofollow ugc">elixir-mode instruction</a>. So, if I get syntax errors, warnings only appear in *elixir-format-errors* after saving. There’s no indicator on the same buffer.</p> 
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<img alt="" width="24" height="24" src="https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/ynakao/48/11614_2.png" class="avatar"> ynakao:</div>
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<p>Compile time messages are useful, but inline warnings when writing source code are also convenient in my opinion.</p>
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<p>As the LS compiles on save, they are there “as you type”.</p>
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<img alt="" width="24" height="24" src="https://forum.elixirforum.com/user_avatar/forum.elixirforum.com/ynakao/48/11614_2.png" class="avatar"> ynakao:</div>
<blockquote>
<p>Maybe I’m missing something, can elixir-ls indicate syntax errors alongside the line numbers or something?</p>
</blockquote>
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<p>I do see red and yellow squiggly lines. My office box has no emacs installed though and I can’t SSH to home for some reasons that I have to debug later, so I can not show you a screenshot right now, perhaps later today (6 to 10 hours from now).</p>
<p>I do use <code>eglot</code>, for LS, perhaps that is making the difference?</p>
<p>Anyway, you can look my emacs config up at <a href="https://gitlab.com/NobbZ/emacs.d" class="inline-onebox" rel="nofollow">Norbert Melzer / emacs.d · GitLab</a>, perhaps you spot the difference?</p> 
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