uninitialized constant ExecJS::Runtimes::RubyRacerRuntime about execjs HOT 7 CLOSED

That is not the fix. We need to report the bug to autoprefixer-rails their code is wrong.

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Can you please provide a sample application that reproduces the error?

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@rafaelfranca the piece of code i want to run is this

app_1      | ActionView::Template::Error (uninitialized constant ExecJS::Runtimes::RubyRacerRuntime):
app_1      |     70:     <div class="container-fluid p-0">
app_1      |     71:     <div class="row no-gutters">
app_1      |     72:
app_1      |     73:         <div class="col-lg-6 order-lg-2 text-white showcase-img" style="background-image: url(<%= asset_path('bg-showcase-1.jpg') %>);"></div>
app_1      |     74:         <div class="col-lg-6 order-lg-1 my-auto showcase-text">
app_1      |     75:         <h2>Fully Responsive Design</h2>
app_1      |     76:         <p class="lead mb-0">When you use a theme created by Start Bootstrap, you know that the theme will look great on any device, whether it's a phone, tablet, or desktop the page will behave responsively!</p>
app_1      |
app_1      | app/views/pages/index.html.erb:73:in `_app_views_pages_index_html_erb__1509257406324096851_47129302344520'

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Right, but with no way to reproduce we can't do anything, this is why I'm asking an new application that reproduces this error. Maybe the problem is in your code.

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@rafaelfranca Ive created this repo with a sample app where the issue is the same. https://github.com/Dvelezs94/racerissue . I also included a helper script so u can follow the same steps im doing (on the readme)

Prerequisites:

• Docker
• Docker-compose

Steps:
1.- start
2.- create db
3.- visit localhost (you should see the error here)

Thanks in Advance!

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This is a bug in autoprefixer-rails ai/autoprefixer-rails@e572cb7. This runtime that it is looking for doesn't exist. It is ExecJS::RubyRacerRuntime.

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@rafaelfranca Thank you! that was the issue

So for the people that has this issue.
Replace gem 'therubyracer' for gem 'mini_racer', platforms: :ruby

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