jskubick

jskubick

Kotlin and Android Development featuring Jetpack: Error in generated Game.java (page 136)

I’m under the impression that when the reader gets to page 136 (“View Data with the Database Inspector”), the code SHOULD be able to build without errors.

Reasons for the assumption:

  • The Database Inspector ISN’T appearing (as far as I can tell, in Arctic Fox, it was moved to the “App Inspection” tab and no longer exists as a Tool window of its own).

  • I assume the act of successfully building and running the app is what creates and populates the database on the emulator, and…

  • once that database exists, Android Studio notices it & reveals the Database Inspector functionality.

There are no visible errors in the sourcecode itself (no red squiggly lines in any editable source files, no red marks along the right margin), but I’m getting a slew of errors in the generated app/build/tmp/kapt3/stubs/debug/dev/mfazio/pennydrop/data/Game.java class, PennyDropDao.java, and Player.java (note: all are *.java and presumably generated, the *.kt files seem to be fine) that I’m not sure how to troubleshoot:

C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:7: warning: There are multiple good constructors and Room will pick the no-arg constructor. You can use the @Ignore annotation to eliminate unwanted constructors.
public final class Game {
             ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:11: error: Cannot find setter for field.
    private final dev.mfazio.pennydrop.data.GameState gameState = null;
                                                      ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:13: error: Cannot find setter for field.
    private final java.time.OffsetDateTime startTime = null;
                                           ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:15: error: Cannot find setter for field.
    private final java.time.OffsetDateTime endTime = null;
                                           ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:17: error: Cannot find setter for field.
    private final java.util.List<java.lang.Integer> filledSlots = null;
                                                    ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:19: error: Cannot find setter for field.
    private final java.lang.Integer lastRoll = null;
                                    ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:21: error: Cannot find setter for field.
    private final java.lang.String currentTurnText = null;
                                   ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:22: error: Cannot find setter for field.
    private final boolean canRoll = false;
                          ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:23: error: Cannot find setter for field.
    private final boolean canPass = false;
                          ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:7: warning: There are multiple good constructors and Room will pick the no-arg constructor. You can use the @Ignore annotation to eliminate unwanted constructors.
public final class Game {
             ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:11: error: Cannot find setter for field.
    private final dev.mfazio.pennydrop.data.GameState gameState = null;
                                                      ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:13: error: Cannot find setter for field.
    private final java.time.OffsetDateTime startTime = null;
                                           ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:15: error: Cannot find setter for field.
    private final java.time.OffsetDateTime endTime = null;
                                           ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:17: error: Cannot find setter for field.
    private final java.util.List<java.lang.Integer> filledSlots = null;
                                                    ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:19: error: Cannot find setter for field.
    private final java.lang.Integer lastRoll = null;
                                    ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:21: error: Cannot find setter for field.
    private final java.lang.String currentTurnText = null;
                                   ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:22: error: Cannot find setter for field.
    private final boolean canRoll = false;
                          ^
C:\src\experiments\android\PennyDrop\app\build\tmp\kapt3\stubs\debug\dev\mfazio\pennydrop\data\Game.java:23: error: Cannot find setter for field.
    private final boolean canPass = false;
                          

Any idea which class to even start looking at to figure out what’s wrong? I’m guessing I forgot an annotation somewhere… or possibly, in an attempt to fix an earlier typo problem by copying files from the .zip file, might have created a bigger one by prematurely copying something mentioned later in the chapter that’s now triggering the error above by expecting the presence of something that officially hasn’t been added yet as of page 136.

For what it’s worth, it looks like the following methods of PennyDropDao.kt haven’t yet been mentioned as of page 136, but are in the .zip file’s version, and the references to them by the lines added prior to page 136 will generate errors in PennyDropDao.kt itself unless they’re added:

getPlayer()
insertGame()
insertPlayer()
insertPlayers()
updateGame()

According to WinMerge, my versions of Converters.kt, Game.kt, GameState.kt, GameStatus.kt, PennyDropDatabase.kt, and PennyDropRepository.kt are presently identical to the versions in the zipfile.

As far as I can recall, my copy of PennyDropDao.kt was identical, until I commented the methods out, then went through chapter 5 from the start and moved the methods from inside the comment block to the outside in the order they’re mentioned in the chapter. That’s how I noticed that 5 methods listed above were referenced by the code, but not mentioned yet as of page 136… they were still in the comment block as of page 136.

Marked As Solved

mfazio23

mfazio23

Author of Kotlin and Android Development featuring Jetpack

Jeff, I think I got it. The book was written against Room 2.3.0-beta01 which doesn’t play nice with Kotlin 1.5.30. If you upgrade your Room dependency to 2.3.0, it should work without trouble.

Please let me know either way!

Also Liked

mfazio23

mfazio23

Author of Kotlin and Android Development featuring Jetpack

Hey Jeff,
I’m looking through what you have here and I’m trying to figure out what’s going on.

The first thing I want to hit are those five functions from PennyDropDao. All five are on pages 118 and 119 when we first create the abstract class. Are these the functions you’re referencing here?

The issue with the Game class looks familiar from my initial development work, though I do not remember what caused that specific problem. Could you share what your Game class looks like? And an offer: if you wanted to upload your work to GitHub or something similar, I’d be willing to troubleshoot things that way with you. I want to make sure you can get as much as possible out of the book.

For reference, you’re right on point with the *.java files being generated. :+1: Also, you’re correct on the Database Inspector being moved in Arctic Fox. I’m really starting to dislike this new Android Studio update.

Let me know on your Game class (and if you want to put the whole project out somewhere I can access it) and we’ll go from there!

jskubick

jskubick

OK, that fixed it. Thanks!!!

Where Next?

Popular Pragmatic Bookshelf topics Top

abtin
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
cro
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
gilesdotcodes
In case this helps anyone, I’ve had issues setting up the rails source code. Here were the solutions: In Gemfile, change gem 'rails' t...
New
New
brian-m-ops
#book-python-testing-with-pytest-second-edition Hi. Thanks for writing the book. I am just learning so this might just of been an issue ...
New
jskubick
I think I might have found a problem involving SwitchCompat, thumbTint, and trackTint. As entered, the SwitchCompat changes color to hol...
New
jgchristopher
“The ProductLive.Index template calls a helper function, live_component/3, that in turn calls on the modal component. ” Excerpt From: Br...
New
jskubick
I’m under the impression that when the reader gets to page 136 (“View Data with the Database Inspector”), the code SHOULD be able to buil...
New
NaplesDave
@mfazio23 I am following along and I have gotten up to adding the data binding items. The project has built alright until I added the da...
New
dachristenson
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

Other popular topics Top

Devtalk
Hello Devtalk World! Please let us know a little about who you are and where you’re from :nerd_face:
New
PragmaticBookshelf
Take your Go skills to the next level by learning how to design, develop, and deploy a distributed service. Start from the bare essential...
New
New
DevotionGeo
I know that -t flag is used along with -i flag for getting an interactive shell. But I cannot digest what the man page for docker run com...
New
mafinar
This is going to be a long an frequently posted thread. While talking to a friend of mine who has taken data structure and algorithm cou...
New
AstonJ
Was just curious to see if any were around, found this one: I got 51/100: Not sure if it was meant to buy I am sure at times the b...
New
PragmaticBookshelf
Author Spotlight: VM Brasseur @vmbrasseur We have a treat for you today! We turn the spotlight onto Open Source as we sit down with V...
New
PragmaticBookshelf
Author Spotlight: Peter Ullrich @PJUllrich Data is at the core of every business, but it is useless if nobody can access and analyze ...
New
First poster: bot
zig/http.zig at 7cf2cbb33ef34c1d211135f56d30fe23b6cacd42 · ziglang/zig. General-purpose programming language and toolchain for maintaini...
New
AstonJ
If you’re getting errors like this: psql: error: connection to server on socket “/tmp/.s.PGSQL.5432” failed: No such file or directory ...
New

Sub Categories: