PragProg Customers

Kotlin and Android Development featuring Jetpack:

milhouse34521

milhouse34521

Kotlin and Android Development featuring Jetpack:

Is there an issue with the posted source code file? I’ve downloaded it twice and many of the files are filled with null content (Notepad++). For example
Chapter One: activity_main.xml:

NULNULNULNULNULNULNULNULNULNULNULNUL

In a browser, the error is: error on line 9 at column 1: Document is empty

Kotlin files (MainActivity.kt, Chapter One, for example) don’t even have the header. They are just completely filled with NUL

2 comments
#question/book-kotlin-and-android-development-featuring-jetpack
0 707 2

Marked As Solved

mfazio23

mfazio23

Author of Kotlin and Android Development featuring Jetpack

This is fixed up now. Somehow my code for chapter 1 got corrupted and I sent that out (which isn’t terribly helpful to anyone).

@milhouse34521 - let me know if you have any other issues!

Post #3

Popular Prag Prog topics Top

Razor54672
PragProg Customers

Practical Programming, Third Edition: Incorrect Answer in Chapter 5 Exercise Solution
The answer to 3rd Problem of Chapter 5 (Making Choices) of “Practical Programming, Third Edition” seems incorrect in the given answer ke...
#errata/book-practical-programming-third-edition
2 1040 0
New
raul
PragProg Customers

Distributed Services with Go: Chapter 3 suggestions
Page 28: It implements io.ReaderAt on the store type. Sorry if it’s a dumb question but was the io.ReaderAt supposed to be io.ReadAt? ...
#errata/book-distributed-services-with-go
0 1290 3
New
Chrichton
PragProg Customers

Programming Phoenix LiveView: B03 (page 56-57) auth exercise
Dear Sophie. I tried to do the “Authorization” exercise and have two questions: When trying to plug in an email-service, I found the ...
#question/book-programming-phoenix-liveview
1 1178 3
New
curtosis
PragProg Customers

Build a Weather Station with Elixir and Nerves: 'mix deps.get' does not work if user has not created a keyfile (page 16)
Running mix deps.get in the sensor_hub directory fails with the following error: ** (Mix) No SSH public keys found in ~/.ssh. An ssh aut...
#errata/book-build-a-weather-station-with-elixir-and-nerves
2 1434 3
New
akraut
PragProg Customers

Programming Phoenix LiveView: Display Image Uploads (pdf p142)
The markup used to display the uploaded image results in a Phoenix.LiveView.HTMLTokenizer.ParseError error. lib/pento_web/live/product_l...
#errata/book-programming-phoenix-liveview
2 2080 9
New
kolossal
PragProg Customers

Hands on Rust: Need help with error - thread 'main' panicked at 'Failed to load texture
Hi, I need some help, I’m new to rust and was learning through your book. but I got stuck at the last stage of distribution. Whenever I t...
/book-hands-on-rust#question
3 1944 5
New
mert
PragProg Customers

Agile Web Development with Rails 7: page 152, page 153:
AWDWR 7, page 152, page 153: Hello everyone, I’m a little bit lost on the hotwire part. I didn’t fully understand it. On page 152 @rub...
#question/book-agile-web-development-with-rails-7
0 1222 4
New
jwandekoken
PragProg Customers

Programming Phoenix LiveView: Live Upload Match Error
Book: Programming Phoenix LiveView, page 142 (157/378), file lib/pento_web/live/product_live/form_component.ex, in the function below: d...
#errata/book-programming-phoenix-liveview
7 1151 10
New
tkhobbes
PragProg Customers

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...
#errata/book-modern-front-end-development-for-rails
0 1460 5
New
NaplesDave
PragProg Customers

PragProg Customers Kotlin and Android Development: pg. 8 Build Gradle error: Could not get unknown property 'kotlin_version'
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....
#question/book-kotlin-and-android-development-featuring-jetpack
0 1377 2
New

Other popular topics Top

AstonJ
Hardware

Custom keyboard keycaps
There’s a whole world of custom keycaps out there that I didn’t know existed! Check out all of our Keycaps threads here: https://forum....
#hardware/keyboards#keycaps#mechanical-keyboards
15 7812 20
New
DevotionGeo
Code Editors

Dendron: a personal knowledge management tool on top of VSCode
/vscode#visual-studio-code
28 5663 9
New
AstonJ
Hardware

Planck vs Preonic vs Subatomic (Keyboards)
I ended up cancelling my Moonlander order as I think it’s just going to be a bit too bulky for me. I think the Planck and the Preonic (o...
/keyboards#mechanical-keyboards#ortholinear#planck#preonic
105 13994 48
New
AstonJ
Hardware

BIIP MT3 Extended 2048 Custom Keycap Set (Drop)
This looks like a stunning keycap set :orange_heart: A LEGENDARY KEYBOARD LIVES ON When you bought an Apple Macintosh computer in the e...
/keyboards#apple#mechanical-keyboards#keycaps
14 5750 7
New
rustkas
Backend Developer Forum>Chat/Discussions

Using Regular Expressions in Erlang
Intensively researching Erlang books and additional resources on it, I have found that the topic of using Regular Expressions is either c...
/erlang#regular-expressions
91 4879 44
New
PragmaticBookshelf
Backend Developer Forum>Learning Resources

Agile Web Development with Rails 7
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
#pragprog#web-development/ruby/rails#published-book/book-agile-web-development-with-rails-7
32 2728 10
New
PragmaticBookshelf
Backend Developer Forum>Learning Resources

Effective Haskell
Build efficient applications that exploit the unique benefits of a pure functional language, learning from an engineer who uses Haskell t...
#pragprog/haskell#published-book/book-effective-haskell
15 4338 2
New
First poster: bot
In The News

The overengineered Solution to my Pigeon Problem
The overengineered Solution to my Pigeon Problem. TL;DR: I built a wifi-equipped water gun to shoot the pigeons on my balcony, controlle...
maxnagy.com
0 4160 1
New
PragmaticBookshelf
In The Spotlight

Spotlight: Peter Ullrich (Author) Interview and AMA!
Author Spotlight: Peter Ullrich @PJUllrich Data is at the core of every business, but it is useless if nobody can access and analyze ...
/elixir/phoenix/book-building-table-views-with-phoenix-liveview
72 3682 22
New
PragmaticBookshelf
In The Spotlight

Spotlight: Noel Rappin (Author)
A Ruby-Centric Chat with Noel Rappin @noelrappin Once you start noodling around with Ruby you quickly figure out, as Noel Rappi...
/ruby/book-programming-ruby-3-2-5th-edition#author-spotlight/rails
41 2554 20
New
Back to top

Latest in PragProg

Real-World Event Sourcing: `handle_command` for subtract doesn't make sense (pg 8)
PragProg Customers
Network Programming in Elixir and Erlang:Designing a Simple Chat Protocol broadcast message (page 39)
PragProg Customers
Ash Framework B4: `mix ash.gen.domain Tunez.Music` fails (page 6)
PragProg Customers
The Ray Tracer Challenge: Gradient pattern is not a gradient
PragProg Customers
Clojure Brain Teasers (pg 76) - typo in example
PragProg Customers
Ash Framework B4: typo (page 149)
PragProg Customers
Ash Framework B4: typo (page 138)
PragProg Customers
The Art of Functional Programming: choices for quiz 6 (page 251)
PragProg Customers
Ash Framework B4: typo (page 204)
PragProg Customers
Ash Framework B4: passing map instead of string in search_artists! (page 85)
PragProg Customers
Hotwire Native for Rails Developers: navigatorHostId value (pages 28, 29, 30)
PragProg Customers
Ash Framework B4: typo and missing comma (143)
PragProg Customers
Machine Learning in Elixir: Chapter 4. Bug with avg_loss counting
PragProg Customers
Agile Web Development with Rails 8: (page 54)
PragProg Customers
Advanced Hands-on Rust: Mars elements mismatch in text and code (B3 p264)
PragProg Customers
Advanced Hands-on Rust: Mars mesh calculation wrong (B3 p248)
PragProg Customers
Tmux 3: paste-command not recognized (pg 59)
PragProg Customers
Pragmatic Unit Testing in Java with JUnit, Third Edition: assertEquals arguments reversed (page 241)
PragProg Customers
Advanced Hands-on Rust: Mars bounce code wrong (B3 p236)
PragProg Customers
Advanced Hands-on Rust: Flappy dimensions are wrong (height should be 45)
PragProg Customers

View all threads ❯

Latest (all)

Good and bad tools for creating branching dialogues
Game Dev Chat/Discussions
Every FLOP Counts: Scaling a 300B Mixture-of-Experts LING LLM without Premium GPUs
In The News
Apple Needs a Snow Sequoia
In The News
13 things I would have told myself before building an autorouter
In The News
Calculate Throughput with LLVM's Scheduling Model
In The News
Erlang OTP-27.3.1, OTP-26.2.5.10 and OTP-25.3.2.19 released!
Backend News
Symfony v7.2.5 and v6.4.20 released!
Backend News
Vapor 4.114.1 released!
Backend News
Clojure Deref (Mar 28, 2025)
Backend News
Kubuntu Plucky Puffin (25.04) Beta released
Linux News
Debian: Viridien Platinum Sponsor of DebConf25
Linux News
A Shell for the Container Age: Introducing Dagger Shell - Dagger
In The News
I tried making artificial sunlight at home
In The News
Sgnly - Smart Signature Simplifier - 5x faster document workflows
In The News
Node.js v18.20.8 released!
Backend News

View all threads ❯

We ❤️ helpful members!

We reward our most helpful members via our MOTM scheme - by giving away a whopping 25 books per year!

Member of the Month

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

Categories:

Popular Portals

Devtalk Sponsors

Pragmatic Bookshelf

Practical resources that improve the lives of professional developers.

Erlang Solutions

We build trusted fault-tolerant systems that scale to billions of users.

AppSignal

Catch errors, track performance, monitor hosts and more.

WyeWorks

Enabling companies to succeed by building software people love.

Pragmatic Studio

Courses that'll move you from confusion to "Aha, now I get it!"

View all our sponsors ❯

We're in Beta

About us Mission Statement See our Roadmap