dachristenson

dachristenson

Kotlin and Android Development featuring Jetpack: Should app build by end of p. 294?

@mfazio23

My version of the app was building (version as of p. 284), but as of the end of p. 294, it fails to build with this error:

e: file:///D:/home/Derek/Dropbox/AndroidStudioProjects/AndroidBaseballLeague/app/src/main/java/com/example/abl/settings/SettingsFragment.kt:100:15 Unresolved reference: attr

When I look at that, Android Studio complains that the attribute colorPrimary is undefined. As far as I can tell, my theme files are almost identical to those in the provided code for Ch. 12, and colorPrimary is, indeed, defined for both day and night themes. So, why is it hanging up here and refusing to build? Am I missing something that is mentioned later in Ch. 12?

Also, Android Studio is giving me a warning about onBindPreferences, saying

PreferenceFragmentCompat.onBindPreferences can only be called from within the same library group prefix (referenced groupId=androidx.preference with prefix androidx from groupId=Android Baseball League)

That warning, however, does not seem to be preventing the build.

Marked As Solved

mfazio23

mfazio23

Author of Kotlin and Android Development featuring Jetpack

This one’s weird as I’m not sure what differs between your project and what I have set up. I’m assuming it’s something with the updated library versions, but I’m honestly not sure (and yes, I’m seeing the same thing on my version of your code).

That being said, an easy fix is to change the attribute reference to android.R.attr.colorPrimary. It’ll pull in the <item name="colorPrimary">@color/androidGreen</item> attribute from your themes all the same.

Where Next?

Popular Pragmatic Bookshelf topics Top

jimmykiang
This test is broken right out of the box… — FAIL: TestAgent (7.82s) agent_test.go:77: Error Trace: agent_test.go:77 agent_test.go:...
New
iPaul
page 37 ANTLRInputStream input = new ANTLRInputStream(is); as of ANTLR 4 .8 should be: CharStream stream = CharStreams.fromStream(i...
New
raul
Hi Travis! Thank you for the cool book! :slight_smile: I made a list of issues and thought I could post them chapter by chapter. I’m rev...
New
HarryDeveloper
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
jskubick
I’m running Android Studio “Arctic Fox” 2020.3.1 Patch 2, and I’m embarrassed to admit that I only made it to page 8 before running into ...
New
hazardco
On page 78 the following code appears: &lt;%= link_to ‘Destroy’, product, class: ‘hover:underline’, method: :delete, data: { confirm...
New
jonmac
The allprojects block listed on page 245 produces the following error when syncing gradle: “org.gradle.api.GradleScriptException: A prob...
New
andreheijstek
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
Keton
When running the program in chapter 8, “Implementing Combat”, the printout Health before attack was never printed so I assumed something ...
New
redconfetti
Docker-Machine became part of the Docker Toolbox, which was deprecated in 2020, long after Docker Desktop supported Docker Engine nativel...
New

Other popular topics Top

Devtalk
Reading something? Working on something? Planning something? Changing jobs even!? If you’re up for sharing, please let us know what you’...
1052 22283 402
New
AstonJ
You might be thinking we should just ask who’s not using VSCode :joy: however there are some new additions in the space that might give V...
New
New
PragmaticBookshelf
Rails 7 completely redefines what it means to produce fantastic user experiences and provides a way to achieve all the benefits of single...
New
PragmaticBookshelf
Author Spotlight Mike Riley @mriley This month, we turn the spotlight on Mike Riley, author of Portable Python Projects. Mike’s book ...
New
New
CommunityNews
A Brief Review of the Minisforum V3 AMD Tablet. Update: I have created an awesome-minisforum-v3 GitHub repository to list information fo...
New
PragmaticBookshelf
Get the comprehensive, insider information you need for Rails 8 with the new edition of this award-winning classic. Sam Ruby @rubys ...
New
PragmaticBookshelf
Fight complexity and reclaim the original spirit of agility by learning to simplify how you develop software. The result: a more humane a...
New
mindriot
Ok, well here are some thoughts and opinions on some of the ergonomic keyboards I have, I guess like mini review of each that I use enoug...
New

Sub Categories: