mini_racer | Minimal embedded v8 | Application Framework library

I am using Rails 6.1.3 with Ruby 2.7.2 for a mostly static pages app. The app has a registration form that a student must complete and download as a PDF file to print, persistence is not required at this point. It was working fine with Dhalang (Google's puppeteer wrap) gem, then I did a Javascript routine for a different part of the app and it stopped to work. The process should be: A view has a button link_to the route "new_student_url" set up to the "students_controller#new" action which should get the views/students/new to render the _form, At this point I have the button pointing and recognizing the route but when I click on it it just ignores the event; Oddly enough, if I right click the button to 'open link in a new tab', it works... =/ I have read several other cases and found that most of them are caused by a Turbolinks issue, so I did review my Turbolinks setup with Webpack and the app/javascript/packs/application.js seems to be ok, please help.

This is the link button:

I have cloned an existing project and trying to run it in my system. Since this is the first time I don't have any Gemfile.lock file in my directory. I tried running bundle install and the following errors occur:

How do I replace the therubyracer gem? I'm really stuck.

We have been using the therubyracer gem for our Rails asset pipeline. However, it is using dependencies which are past their end of life and have security vulnerabilities. The latest version 0.12.3 is from January 05, 2017.

I have looked at the mini_racer gem, but we deploy to FreeBSD and the latest version supported on FreeBSD is 0.1.14 from August 24, 2017. We develop on macOS and my compile of this version of mini_racer gets errors, one of which because CreateDefaultPlatform has been removed from V8.

The list of runtimes supported by execjs, at https://github.com/rails/execjs lists Node.js and Google V8 but the links go to pages which don't look like gems I can replace in my Gemfile, neither do those pages have documentation on how to use their runtime for execjs. I honestly am stuck with no idea how to use a newer runtime in my Rails pipeline.

I'm trying to build a simple app that is just using a GitHub login for authentication for now. I am using Rails v5.2.3 for the backend, and React for the frontend. I currently have a button in my Root Component that sends an ajax request to my backend. That request will hit an action in my SessionsController that will redirect to the /auth/github route and begin the GitHub auth cycle.

I believe this is step is where I am getting an error.

My browser console gives me this error message:

I want to download all the attachments by streaming them using ActionController:: Live. It's working fine if I remove gem 'active_model_serializers', '0.9.2' gem. It halts the server and I have to restart it.

Here is the controller

zip_streaming.rb

I've tried everything I could think of, but I can't get deployment to work.

The app needs to deploy to a VPS hosted by Alwaysdata and running ruby 2.6.2, using Capistrano for deployment. It's a Rails 6.0.2.2 application, using webpack for JS and sprockets for legacy scripts, all images and CSS.

I am running this on Windows 10. I am trying build this repository (incase the Gemfile and Gemfile.lock are helpful): https://github.com/huginn/huginn

I am trying to upgrade a rails 4.2 application to 5.2.3.
My system is MacOS 10.14.6 Mojave. Bundler version 2.0.2

Here is the error after I did bundle update:

I have a long-term-stable Rails 5.1 app deployed to Ubuntu 18.04.3 using MySQL.

I came to deploy a mundane update yesterday, and for some reason I've started getting the error,

LoadError: Error loading the 'mysql2' Active Record adapter. Missing a gem it depends on? mysql2 is not part of the bundle. Add it to your Gemfile.

Of course, the gem is already in my Gemfile (and Gemfile.lock), and its installed on the deployment machine. I had made some unrelated Gemfile changes (switched to mini_racer and added bcrypt), which required me to update to Bundler 2.0.2 over 2.0.1, but that's it.

Things I've tried:

1. I've tried going back to the code base before any gem changes and switched back to bundler 2.0.1, but I still hit the same problem on deployment - now it's broken, it seems to be staying broken.

2. I tried deploying to a entirely independent server I have set up (still on Ubuntu 18.04) and now see the same problem.

3. I found these apparent duplicate questions, and there the fix was to go back to an earlier version of the mysql2 gem (I tried 0.3.20 as I saw mention that 0.3.21 doesn't work), but that doesn't fix it in my case. I've tried uninstalling all other versions on the server side.

4. The comments around the above linked question say this will be fixed in Rails 5 (I was already using 5.1) but I went through the exercise of updating my Rails app to 5.2 to get the very latest gems, and specified mysql 0.5.2 to see if I could leap frog the versions of mysql2 with the issue, but still I hit the same problem.

My 'current' Gemfile.lock file is pasted below, but this issue started with Rails 5.1.7 and Bundler 2.0.1 and I've tried all permutations of mysql2 0.3.18, 0.3.20 and 0.5.2.

Without a fix I am unable to deploy a Rails app update, so any suggestions as to how to overcome this deployment problem much appreciated.