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User.create(name: ‘dave’, email: ‘dave@example.org’, work(dev)* password: ‘secret’, password_confirmation: ‘secret’)
should be
User...
New
In the pdf the following sentence, does not have the spaces.
Well-designed binary protocols are inevitably more space-efficient when ser...
New
EDIT: I misread the scientific notation, I was getting, “-4.37114e-08”, turns out that’s almost 0. GTest’s ASSERT_FLOAT_EQ is super conse...
New
“between 100 and 200 characters.”
Should be
”between 100 and 200 words.”
New
Context
Hardware & OS:
OS: macOS Tahoe 26.0 arm64
Host: MacBook Pro
Observation
One of the code snippets as seen in epub is this...
New
This Week's Trending
Hi - thanks for the great resource.
I noticed a couple of places where the rails server errors with the sample code due to some extraneo...
New
Context
Hardware & OS:
OS: macOS Tahoe 26.0 arm64
Host: MacBook Pro
Observation
One of the code snippets as seen in epub is this...
New
“between 100 and 200 characters.”
Should be
”between 100 and 200 words.”
New
The book’s website at https://thevalebook.com/ has a ‘Resources’ section (top right of the site’s home page) which contains a link with t...
New
Chris McCord said on his keynote at ElixirConf US 2025 that “Agents are easier than you think” and provided a basic draft on how to imple...
New
User.create(name: ‘dave’, email: ‘dave@example.org’, work(dev)* password: ‘secret’, password_confirmation: ‘secret’)
should be
User...
New
EDIT: I misread the scientific notation, I was getting, “-4.37114e-08”, turns out that’s almost 0. GTest’s ASSERT_FLOAT_EQ is super conse...
New
In the pdf the following sentence, does not have the spaces.
Well-designed binary protocols are inevitably more space-efficient when ser...
New
This Month's Trending
After running
mix igniter.install ash_authentication_phonix
the book states: „Before we can test it out, there’s one manual change we n...
New
Chapter 9, section “Following a New Artist” is first instructing to add a new domain function follow_artist to Tunez.Music. But this func...
New
Hi,
I have created a free openai account and generated an api key.
When I run the generate embeddings code with the api key, I get the ...
New
The last section in chapter 3 about aggregates mentions “„Aggregates perform some kind of calculation on records in a relationship“. Howe...
New
I read chapters 1-3 so far.
I noted that the FunPark-Project has exactly one struct (domain-object) per bounded context.
I would be int...
New
@cplanas & @michaelswaine
On p150, under the header of “Configuring Solid Queue“, the file and content provided does not match the p...
New
There are two simple typos present on p223 and p227.
On p223, there is a missing space between “fact” and “that”.
With this option, ru...
New
Title: Agile Web Development with Rails 8: (Pg. 144)
Example: Programming Flutter: ‘pub get’ command not working (page 15)
rails80/depo...
New
This commit:
https://github.com/timpritlove/tunez/commit/811b01c605ea7e64e162e93a4b76088d84d131b4
adds the :stream strategy which someh...
New
Title: Agile Web Development with Rails 8: Old Content? (page 154)
Unless I’m missing something, I suggest the sentence starting with “A...
New
Sorry, I couldn’t figure out how to add a tag to a previous post (so that it shows up in the right section here), hence I just made a new...
New
In your great book you use structs as abstraction for your domain objects.
I understand, that you don’t want any dependencies.
But ther...
New
Title: Network Programming in Elixir and Erlang (p. 56)
Hi,
Thanks for the amazing book, first and foremost.
I found that Chat app int...
New
In Chapter 6. Task A: Creating the Application, page 70, there is a typo in the word `addtion`
Original: “If you examine that output, in...
New
On p150, under the header of “Configuring Solid Queue“, the file and content provided does not match the surrounding text.
The section b...
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
@autodidaddict
Real World Event Sourcing: Page 105 of version 3 (PDF)
Inconsistent descriptions around whether Aggregates can process ...
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’m just curious: in the preface, it says, “The biggest non-deployment related change is the introduction of a basic authentication gener...
New
Title: Agile Web Development with Rails 8 (page 9)
Suggestion: Add watchman to the list of packages to install
In Chapter 6 page 71 whe...
New
Installing the mentioned version of erlang gave me issues (I also tried with some other versions in 26.2…)
❯ asdf install erlang 26.2.1
...
New
I created my own tunez app from scratch using mix new tunes_hg
I successfully followed the book creating the ash_resource ‘artist’.
I c...
New
In reviewing the code for this chapter (autoscaling_and_optimizing_your_deployment_strategy -
modules/cloud/aws/compute/swarm/main.tf), ...
New
On page 93, reference is made to the file lorem.jpg, which should be located in the test/fixtures/files folder; however, the file is not ...
New
Hello, I was struggling a bit with completing chapter 11, iteration F4.
While the changes done in the “admin” (maintenance?) panel to st...
New
The text "“ What we do have is that suspension-point icon next to awaitResponse,”
presumes we didn’t have those icons in the execute ver...
New
@joemasilotti
In Chapter 1, Initiate the Visit Section, it says:
let baseURL = URL(string: “http://localhost:3000”)!
This doesn’t work ...
New
The regex on page 48 is hard to read:
~r/(^https:\/\/|\/images\/).+(\.png|\.jpg)$/
It can be improved by changing the delimiters which ...
New
Trending Last Three Years
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
@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
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
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
I’ve got to the end of Ch. 11, and the app runs, with all tabs displaying what they should – at first. After switching around between St...
New
Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
New
@mfazio23
I had the project running as of p. 249, but by the end of Ch. 10 (p. 258), something new has made the program crash when it tr...
New
@rubys
Title: Name of book: text: Agile Web Development Rails6, p. 183, Iteration G1: Capturing an Order.
I started working on a web de...
New
Is there any plan for volume 2? :slight_smile:
New
Disclaimer: I hope all of this is accurate, and not the result of some stupid typo I failed to notice. Anyways…
This post comprises 2 is...
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
@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
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
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