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Please use the following format for the title of this thread:
Title: A Common-Sense Guide to Data Structures and Algorithms, Second Edit...
New
The CI/CD GitHub action jobs:ci:compile uses erlef/setup-beam@v1.17.3 which ubuntu-latest as of 05/25/25 does not support.
gh run view ...
New
In DHH’s foreward, near the bottom of the first page, is this text:
Think of all the incredible applications that run the internet with...
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Under “Add Pathfinding to your game” (under chapter 13 „Planning Routes and Creating Believable AI“) there is a paragraph about add/editi...
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I’ve been following along with the book and have noticed there’s some code missing.
Page 49: We create the inital Acceptor module, the p...
New
This Week's Trending
In DHH’s foreward, near the bottom of the first page, is this text:
Think of all the incredible applications that run the internet with...
New
Please use the following format for the title of this thread:
Title: A Common-Sense Guide to Data Structures and Algorithms, Second Edit...
New
I’ve been following along with the book and have noticed there’s some code missing.
Page 49: We create the inital Acceptor module, the p...
New
The CI/CD GitHub action jobs:ci:compile uses erlef/setup-beam@v1.17.3 which ubuntu-latest as of 05/25/25 does not support.
gh run view ...
New
Under “Add Pathfinding to your game” (under chapter 13 „Planning Routes and Creating Believable AI“) there is a paragraph about add/editi...
New
This Month's Trending
In the introduction, 2nd Paragraph first sentence:
... one resources does not a full application make
New
Hello!
I’m neither an Elixir nor Phoenix or Ash expert, but I believe I found misinformation in the A brief detour into LiveView process...
New
The User requires a valid email, such as:
User.create! email_address: "dave@example.org", name: "dave", password: Rails.application.cred...
New
Title: Ash Framework B5: subheading typo (page 96)
In the book:
Adding informative descriptiont ← this
Some of the defaults in the g...
New
I think there is a duplicate piece of code on page 267.
<%= form_with(model: support_request, local: true, class: "depot_from") do |f...
New
Typo in this phrase:
" We want to people without an administrative login to be able to purchase our products."
New
Page 238 is missing the translation of the pay_type label.
The correct code is:
<%= form.label :pay_type, t(".pay_type") %>
New
Page 254 shows an example of a log that is obtained following the sending of an e-mail.
However, the first string START SupportMailbox#p...
New
After deletion of the user, the user is recreated from the console. However, the email address is missing.
User.create(name: "dave", pas...
New
In the “shipped” test, particularly in the last assertion, if I use mail.body.to_s I get the following error:
Minitest::Assertion: Expec...
New
Page 229 gives the example that if the Spanish language (es) is requested, you should get an error such as “es translation not available”...
New
On page 211 we add the login function to the tests; however, if we do not add the name field to the users.yml fixture, the tests systemat...
New
I think that this task is too ambiguous:
“Build a component to render an HTML title, with a heading and a configurable message. Render t...
New
Simplicity (PragProg)
Section entitled “Let’s Change Our World — Again”
Pages ix to xi
Consider including one or both quotes from Leo...
New
In the Card class definition, the type hints for the summary, owner, and id attributes are currently specified as str, str, and int respe...
New
This Year's Trending
Hello @seanmor5 ,
When upgrading Axon to 0.7, evaluation fails with:
** (ArgumentError) argument at position 3 is not compatible with c...
New
When you generate a new Rails, app, there is no version constraint on tailwindcss-rails in the Gemfile. The gem released version 4.0.x on...
New
Just finished installing ruby 3.3.6 and rails 8.0.0 on ubuntu 24.04 LTS.
‘rails new demo’ seems to be building correctly but is throwin...
New
Ellie Fairholm @elliefairholm and Josep Giralt D’Lacoste @Gilacost,
After pushing the new branch in order to create the PR at the end of...
New
Ellie Fairholm @elliefairholm and Josep Giralt D’Lacoste @Gilacost,
Running dialyzer on both localhost and GitHub CI gives the following ...
New
To readers of “Programming Machine Learning”: the code in the book runs on old-ish versions of Python and its libraries. If you have trou...
New
@herbert
Copying the example code from GitHub - thebracket/HandsOnRust: The source code that accompanies Hands-on Rust: Effective Learni...
New
I am using elixir 1.16.2 and when I run the mix compile it’s erroring with:
== Compilation error in file lib/ecto/query.ex ==
** (Kernel...
New
@elliefairholm and @Gilacost
All of Chapter 2 works fine until this last bit.
variable “issues” {
type = list(object({
title = st...
New
@autodidaddict
Real World Event Sourcing: Page 105 of version 3 (PDF)
Inconsistent descriptions around whether Aggregates can process ...
New
Hi @parrt!
I’ve been working my way through the antlr4 reference book and having a great time at it. I’ve done all my exercises with th...
New
Hi again! Here’s another change that would update the book for eslint ^8.25.0 (‘flat config’): On page 53, .eslintignore files were depre...
New
I managed to install asdf, then erlang and elixir via asdf.
I was able to create and test the example Mix project (page 19) successfully...
New
@seanmor5
Location: In Chapter 1, on page 14
Description: While attempting to cast the species column to a category in normalized_iris,...
New
I found it challenging to use code examples from this book, particularly because the queries containing non-printing Unicode characters. ...
New
Trending Last Three Years
@mfazio23
I’m following the indications of the book and arriver ad chapter 10, but the app cannot be compiled due to an error in the Bas...
New
I got this error when executing the plot files on macOS Ventura 13.0.1 with Python 3.10.8 and matplotlib 3.6.1:
programming_ML/code/03_...
New
@mfazio23
Android Studio will not accept anything I do when trying to use the Transformations class, as described on pp. 140-141. Googl...
New
I just bought this book to learn about Android development, and I’m already running into a major issue in Ch. 1, p. 20: “Update activity...
New
I am using Android Studio Chipmunk | 2021.2.1 Patch 2
Build #AI-212.5712.43.2112.8815526, built on July 10, 2022
Runtime version: 11.0....
New
@mfazio23
I’ve applied the changes from Chapter 5 of the book and everything builds correctly and runs. But, when I try to start a game,...
New
Modern Front-End Development for Rails - application does not start after run bin/setup (page xviii)
After some hassle, I was able to finally run bin/setup, now I have started the rails server but I get this error message right when I vis...
New
Getting an error when installing the dependencies at the start of this chapter:
could not compile dependency :exla, "mix compile" failed...
New
Hello @herbert ! Trying to get the very first “Hello, Bracket Terminal!" example to run (p. 53). I develop on an Amazon EC2 instance runn...
New
root_layout: {PentoWeb.LayoutView, :root},
This results in the following following error:
no “root” html template defined for PentoWeb...
New
Hello faithful readers! If you have tried to follow along in the book, you are asked to start up the dev environment via dx/build and ar...
New
Title: Agile Web Development with Rails 7: (page 70)
I am running windows 11 pro with rails 7.0.3 and ruby 3.1.2p20 (2022-04-12 revision...
New
From page 13:
On Python 3.7, you can install the libraries with pip by running these commands inside a Python venv using Visual Studio ...
New
@parrt
In the context of Chapter 4.3, the grammar Java.g4, meant to parse Java 6 compilation units, no longer passes ANTLR (currently 4....
New
Modern front-end development for Rails, second edition - Struggling to get the first chapter to work
After running /bin/setup, the first error was: The foreman' command exists in these Ruby versions: That was easy to fix: gem install fore...
New
Trending Over 3 Years
Hi, I have just acquired Michael Fazio’s “Kotlin and Android Development” to learn about game programming for Android. I have a game in p...
New
When trying to generate the protobuf .go file, I receive this error:
Unknown flag: --go_opt
libprotoc 3.12.3
MacOS 11.3.1
Googling ...
New
I ran this command after installing the sample application:
$ cards add do something --owner Brian
And got a file not found error:
Fil...
New
When I run the coverage example to report on missing lines, I get:
pytest --cov=cards --report=term-missing ch7
ERROR: usage: pytest [op...
New
I found an issue in Chapter 7 regarding android:backgroundTint vs app:backgroundTint.
How to replicate:
load chapter-7 from zipfile i...
New
your book suggests to use Image.toByteData() to convert image to bytes, however I get the following error: "the getter ‘toByteData’ isn’t...
New
Running the examples in chapter 5 c under pytest 5.4.1 causes an AttributeError: ‘module’ object has no attribute ‘config’.
In particula...
New
I think I might have found a problem involving SwitchCompat, thumbTint, and trackTint.
As entered, the SwitchCompat changes color to hol...
New
I am working on the “Your Turn” for chapter one and building out the restart button talked about on page 27. It recommends looking into ...
New
Some minor things in the paper edition that says “3 2020” on the title page verso, not mentioned in the book’s errata online:
p. 186 But...
New
page 20: … protoc command…
I had to additionally run the following go get commands in order to be able to compile protobuf code using go...
New
The allprojects block listed on page 245 produces the following error when syncing gradle:
“org.gradle.api.GradleScriptException: A prob...
New
The following is cross-posted from the original Ray Tracer Challenge forum, from a post by garfieldnate. I’m cross-posting it so that the...
New
I’m a newbie to Rails 7 and have hit an issue with the bin/Dev script mentioned on pages 112-113.
Iteration A1 - Seeing the list of prod...
New
Hi @venkats,
It has been mentioned in the description of ‘Supervisory Job’ title that 2 things as mentioned below result in the same eff...
New
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