Error: EACCESS error in Puma or while testing on Windows.

Fix: Sometimes a reload in the browser works, but not always.

For Puma, change the line in config/puma.rb from

max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 5 }

to

max_threads_count = ENV.fetch("RAILS_MAX_THREADS") { 1 }

Puma appears to be thread unsafe in some circumstances.

For testing, comment out the line

  parallelize(workers: :number_of_processors)

in test/test_helper.rb

---

Error:

None of the paths included in TZInfo::DataSources::ZoneinfoDataSource.search\_path are valid zoneinfo directories. (TZInfo::DataSources::ZoneinfoDirectoryNotFound)

Fix: comment out part of the line

gem "tzinfo-data", platforms: %i[ mingw mswin x64_mingw jruby ]

so it looks like

gem "tzinfo-data" #, platforms: %i[ mingw mswin x64_mingw jruby ]

---

Error:

An error occurred while installing psych (5.1.0), and Bundler cannot continue.

    In Gemfile:
      debug was resolved to 1.8.0, which depends on
        irb was resolved to 1.8.1, which depends on
          rdoc was resolved to 6.5.0, which depends on
            psych

Fix: You need to install a YAML library.

    sudo apt install libyaml-dev

or

    apk install yaml-dev

---

Error:

NameError: uninitialized constant Gem::Source

Fix:

gem update --system

---

Error when testing:

BooksLibrariesControllerTest#test_should_create_books_library: NameError: Rails couldn't find a valid model for BooksLibrary association.  Please provide the :class_name option on the association declaration. If :class_name is already provided, make sure it's an ActiveRecord::Base subclass.  <details>

Fix: add a class_name to the has_many’s before the has_many through’s

    class Book < ApplicationRecord
      has_many :books_libraries, class_name: "BooksLibraries"
      has_many :libraries, through: :books_libraries
    end

    class Library < ActiveRecord::Base
      has_many :books_libraries, class_name: "BooksLibraries"
      has_many :books, through: :books_libraries
    end

    class BooksLibraries < ApplicationRecord
      belongs_to :book
      belongs_to :library
    end

I’m not really sure why this is required as it would seem the class name is obvious.

---

Error: Podman on Windows not reinstalling correctly.

Fix: this is a bug in the Podman installer, it doesn’t remove the container directory in .config. Here’s what worked for me.

wsl --unregister podman-machine-default
podman machine rm podman-machine-default
del C:\users\drsjb\.config\containers\
podman machine init
podman machine start

---

Error: missing sqlite3 dll on Windows

Fix: from Stackover article

Replace

gem 'sqlite3', ">=2.1"

with

gem 'sqlite3', ">=2.1", git: "https://github.com/sparklemotion/sqlite3-ruby"

Then delete Gemfile.lock and do

bundle install