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The inline HTML in the book references the functions upload_image_error, upload_error_message, and upload_error_to_string. They are not d...
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Please guide me in the right direction. I am able to get .as_graph() to display the model correctly
Axon.Display.as_graph(model, templa...
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Title: Advanced Functional Programming with Elixir (page 21)
Example: Programming Flutter: ‘pub get’ command not working (page 15)
Hi, ...
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@seanmor5 thank you for this captivating book (I bought both!). Not sure how it works in the book world when libraries change after the ...
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Hi Folks,
Not sure if anyone had same problem but when deploying the ghcr.io/beamops/kanban:infrastructure-page image in the section Tri...
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This Week's Trending
@seanmor5 thank you for this captivating book (I bought both!). Not sure how it works in the book world when libraries change after the ...
New
Hi Folks,
Not sure if anyone had same problem but when deploying the ghcr.io/beamops/kanban:infrastructure-page image in the section Tri...
New
Title: Advanced Functional Programming with Elixir (page 21)
Example: Programming Flutter: ‘pub get’ command not working (page 15)
Hi, ...
New
Please guide me in the right direction. I am able to get .as_graph() to display the model correctly
Axon.Display.as_graph(model, templa...
New
The inline HTML in the book references the functions upload_image_error, upload_error_message, and upload_error_to_string. They are not d...
New
This Month's Trending 
I am really enjoying the book so far but came across an issue in the first chapter. When running:
trained_model_state =
model
|> Axo...
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The latest book version, B 13.0 supposes to use the latest Phoenix 1.8.0 heex template variable interpolation syntax, what is not the ca...
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I am reading this book with great enthusiasm.
So far the code works great but while running the examples in Predicates That Span Context...
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Some programs automatically save YAML files with the extension ‘yaml’, which isn’t recognised by vale (which exclusively uses ‘yml’.
I s...
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It is imprecise to say “initialize a temporary Degrees{2}, and then copy-assign it” here, since Degrees{2} is a prvalue.
In a new editio...
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There seems to be a race condition in this example, I am actually experiencing this in a running application. The problem happens when th...
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Hello,
first of all, thanks for the book, it helped me a lot.
I just encountered an issue with the refraction, i have implemented the t...
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Chapter 7, Practice 21, Idea 48
The second paragraph ends with “royalty system”.
While it sounds very flattering, it was probably meant...
New
Chapter One makes a reference to DDD to use factories
In Domain-Driven Design, a factory creates domain objects in a consistent
way, ke...
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2, 3, & 6 are nice numbers for this test and do not require the result to be expressed in the form of a square root:
Scenario: Compu...
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pop_head method needs check before attempting to assign
self.first_node.previous_node = None
This is needed if Queue has only one eleme...
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Hi,
Under the ‘Further Reading’ on page 44, the first link is broken. It points to https://runrust.miraheze.org/wiki/Underscore, which s...
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This Year's Trending 
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...
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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...
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@autodidaddict
Real World Event Sourcing: Page 105 of version 3 (PDF)
Inconsistent descriptions around whether Aggregates can process ...
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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...
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I’m just curious: in the preface, it says, “The biggest non-deployment related change is the introduction of a basic authentication gener...
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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 ...
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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...
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In reviewing the code for this chapter (autoscaling_and_optimizing_your_deployment_strategy -
modules/cloud/aws/compute/swarm/main.tf), ...
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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
...
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Hello, I was struggling a bit with completing chapter 11, iteration F4.
While the changes done in the “admin” (maintenance?) panel to st...
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The first time the navigatorHostId is set it uses the value R.id.main_nav_host supposedly added to to activity_main.xml in previous step...
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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...
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In the “Defining an update action” section
artist = Tunez.Music.get_artist_by_id!("an-artist-id")
should be:
{:ok, artist} = Tunez...
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@joemasilotti
In Chapter 1, Initiate the Visit Section, it says:
let baseURL = URL(string: “http://localhost:3000”)!
This doesn’t work ...
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The regex on page 48 is hard to read:
~r/(^https:\/\/|\/images\/).+(\.png|\.jpg)$/
It can be improved by changing the delimiters which ...
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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_...
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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...
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@mfazio23
Android Studio will not accept anything I do when trying to use the Transformations class, as described on pp. 140-141. Googl...
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@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,...
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Getting an error when installing the dependencies at the start of this chapter:
could not compile dependency :exla, "mix compile" failed...
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Hello @herbert ! Trying to get the very first “Hello, Bracket Terminal!" example to run (p. 53). I develop on an Amazon EC2 instance runn...
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root_layout: {PentoWeb.LayoutView, :root},
This results in the following following error:
no “root” html template defined for PentoWeb...
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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...
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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 ...
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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...
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Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
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@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...
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Is there any plan for volume 2? :slight_smile:
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@rubys
Title: Name of book: text: Agile Web Development Rails6, p. 183, Iteration G1: Capturing an Order.
I started working on a web de...
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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...
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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...
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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...
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When I run the coverage example to report on missing lines, I get:
pytest --cov=cards --report=term-missing ch7
ERROR: usage: pytest [op...
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I found an issue in Chapter 7 regarding android:backgroundTint vs app:backgroundTint.
How to replicate:
load chapter-7 from zipfile i...
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your book suggests to use Image.toByteData() to convert image to bytes, however I get the following error: "the getter ‘toByteData’ isn’t...
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@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...
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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 ...
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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...
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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...
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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...
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The allprojects block listed on page 245 produces the following error when syncing gradle:
“org.gradle.api.GradleScriptException: A prob...
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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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