paperclip | safe way to build re-usable presentational components | Frontend Framework library

Im running ruby version 2.6.1 with docker. Rake gem is version 13.0.1.
Whenever I tried docker-compose up, it always fails and throws this error everytime:
This error did not exist before.

How would I create a post mechanism on my website like stackoverflow with bold text and italic text and other customization like that? Right now my php database has this table for posts :

I want the user to view another page when the user clicks the button. inside the new page, some information is already fetched from the database. however, I declare everything but it still saying undefined variable.

form.blade.php

I'm upgrading rails from 4.2 to 5.0, and I'm getting some mean dependency issues. When I run bundle update i get the following output. The thing is that when i look through the messages, it looks like the gems should be able to install just fine when looking at the version requirements.

I also tried to delete my Gemfile.lock, that didn't help.

Any suggestions would be appreciated.

I have an issue with < a > < finger > < img > < figcaption > ...!

Whey I use only tag < a > and < img > in loop of :::

I am more of a Java programmer and still somewhat new to development (2 years or so, can write Java code & web apps just fine) however the company I work for has 4 Rails applications and was asked to get this application working called CtrlPanel. I have been having to learn Ruby on Rails in order to help get this issue with this app fixed and get it working.

I have been working on this problem for over a week all day long every day and nothing I do is fixing it.

I fixed everything to the point the app comes up, web server runs serves the pages but all views are white screens as long as this application.html.haml file is present. I re-wrote the file with very basic bootstrap and it sort of works but nothing looks right. The problem seems to stem from 1 single like that simply says: = javascript_include_tag "application"

I have been all over the internet and have tried every single fix from changing coffee-script-source to v1.8.0 as I read Windows has an issue with newer rails and that file, I have tried every variation of changing it from application to default, and every type of ending you can think of no matter what I do it gives me this error message which I can not seem to find.

I am not even sure WHAT that line does, I assume it has to do with the new Google Maps API and I verified the key is valid and it was working before.

This is the error is it giving it says the line with "= javascript_include_tag" "application" giving error ExecJS::RuntimeError at / SyntaxError: [stdin]:1:1: unexpected //=

I am running a PC on Windows 10 20H2 x64 UEFI ruby 2.7.2p137 (2020-10-01 revision 5445e04352) [x64-mingw32] Rails 6.1.3

(I did also install Ubuntu on another machine and it gives the exact same error, also gives the same error on another Windows machine)

The app is working IF I delete the "application.html.haml" file and put in a skeleton basic version all of the other views start working but of course none of them look right no menus no bootstrap no nothing.
Here is the application.html.haml file.

I had a program that worked a few weeks ago and I wiped it out and had to re-install my ruby and rails enviornment and now I can not bundle install the same program because Paperclip requires Mimemagic and apparently the working versions of the gems no longer exist. Any versions of the gem that remain require this freedesktop.org.xml thing which I went to their site and downloaded but I do not understand on a windows machine how to install the freedesktop.org.xml package so that I can use Ruby on Rails again.

Does anyone know how to install the freedesktop.org.xml package/script/whatever it is so that rails will work properly again? If ANY of our apps break now we are going to be a HORRIBLE place due to this. I have been searching for hours and everything references a MAC or Linux, I am on a PC and I can find NOPLACE that has understandable instructions for how to do this on a Windows 10 PC.

Please HELP!

Thank You, Scott

Update: I tried the suggestion to add:

gem 'mimemagic', git: 'git@github.com:mimemagicrb/mimemagic.git', tag: "v#{[0.3.0]}"

into the gemfile and this is the results I get.

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:

I am using rails as a backend and angular as a frontend. I want to save images to rails backend. I decided to use the paperclip gem. Here is the error below.

↳ app/controllers/products_controller.rb:49:in `set_product' Unpermitted parameters: :id, :created_at, :updated_at, :image_file_name, :image_content_type, :image_file_size, :image_updated_at

Here is some model for angular.