nicoatridge

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

Hi, I have just acquired Michael Fazio’s “Kotlin and Android Development” to learn about game programming for Android. I have a game in python, js, and - in a basic, command line form - in kotlin and want to port it to Android (web version at https://basilisk.net). Anyway, got to page 8 and was editting the build.graddle file and found that the line

implementation “org.jetbrains.kotlin:kotlin-stdlib-jdk8:$kotlin_version”

threw up an error “Could not get unknown property ‘kotlin_version’…”

the line jvmTarget = ‘1.8’ was already in the build.graddle file but the dependencies identified were not. Editting out the problematic kotlin_version line and the program runs fine, but I don’t want to waste my time if this is something that causes more problems downstream.

I am on Arctic Fox 2020.3.1 Patch 1.

6 comments

/book-kotlin-and-android-development-featuring-jetpack

0 7936 6

3 years ago

Marked As Solved

mfazio23

Author of Kotlin and Android Development featuring Jetpack

Hey Nic! This is a known issue when using newer versions of Android Studio. They used to add the $kotlin_version variable for you when creating a new project, but no longer.

If you open the project’s build.gradle file (not the app’s file of the same name), you can add an ext block to the buildscript block to include that variable:

buildscript {
    ext {
        kotlin_version = '1.4.10'
        gradle_version = '4.1.0'
    }
   // The rest of the buildscript lives down here.
}

Let me know if this helps!

Post #2

Popular Prag Prog topics

PragProg Customers

Distributed Services With Go - Agent_test.go error line 77

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:...

/book-distributed-services-with-go #errata

4 1547 7

5 years ago

New

PragProg Customers

The Ray Tracer Challenge - where are the errata?

As per the title, thanks.

/book-the-ray-tracer-challenge

6 1671 4

5 years ago

New

PragProg Customers

The Ray Tracer Challenge: "Computing the normal on a transformed sphere" ebook test

Hi Jamis, I think there’s an issue with a test on chapter 6. I own the ebook, version P1.0 Feb. 2019. This test doesn’t pass for me: ...

#errata /book-the-ray-tracer-challenge

10 1443 5

3 months ago

New

PragProg Customers

Concurrent Data Processing in Elixir: various errata

Hi @Margaret , On page VII the book tells us the example and snippets will be all using Elixir version 1.11 But on page 3 almost the en...

#errata /book-concurrent-data-processing-in-elixir

15 1542 13

4 years ago

New

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

3 years ago

New

PragProg Customers

Web Development with Clojure, Third Edition (vB17.0): create table syntax invalid

Title: Web Development with Clojure, Third Edition, vB17.0 (p9) The create table guestbook syntax suggested doesn’t seem to be accepted ...

#errata /book-web-development-with-clojure-third-edition

0 1830 1

4 years ago

New

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 1436 3

4 months ago

New

PragProg Customers

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

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...

/book-kotlin-and-android-development-featuring-jetpack

0 7935 6

3 years ago

New

PragProg Customers

Python Testing with pytest, Second Edition: unrecognized arguments error (page 122)

When I run the coverage example to report on missing lines, I get: pytest --cov=cards --report=term-missing ch7 ERROR: usage: pytest [op...

#errata /book-python-testing-with-pytest-second-edition

0 3915 1

3 years ago

New

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

2 years ago

New

Other popular topics

Linux Developer Forum>Questions/Help

AMD or Intel for Programming with Linux as the OS?

I am thinking in building or buy a desktop computer for programing, both professionally and on my free time, and my choice of OS is Linux...

#web-development #mobile #android #linux #desktop-computer #mobile-development

36 5150 10

5 years ago

New

Backend Developer Forum>Chat/Discussions

Would you use Erlang now when there is Elixir?

Why, if your answer is yes?

/elixir /erlang

167 4164 52

4 years ago

New

In The News

Bit – A modernized Git CLI written in Go

github.com

#git /go

1 5353 0

5 years ago

New

macOS Developer Forum>Chat/Discussions

Your Mac Isn't Yours - worse, it spies on you and sends it home unencrypted

On modern versions of macOS, you simply can’t power on your computer, launch a text editor or eBook reader, and write or read, without a ...

sneak.berlin

#macos #macs #apple #privacy #mac-privacy #big-sur

24 3384 24

4 years ago

New

In The Spotlight

Spotlight: Paolo Perrotta (Author)

“A Mystical Experience” Hero’s Journey with Paolo Perrotta @nusco Ever wonder how authoring books compares to writing articles?...

#community #author-spotlight /book-programming-machine-learning /book-metaprogramming-ruby-2

31 3355 15

4 years ago

New

Journals & Book Clubs

Programming Crystal Book Club

Crystal recently reached version 1. I had been following it for awhile but never got to really learn it. Most languages I picked up out o...

/crystal /book-programming-crystal #book-club

155 4122 65

4 years ago

New

Data Science Forum

Can AI/ML predict a lottery win?

Biggest jackpot ever apparently! :upside_down_face: I don’t (usually) gamble/play the lottery, but working on a program to predict the...

#ai #machine-learning

19 2841 10

4 years ago

New

General Dev Chat

Roc Language - a new purely functional programming language built for speed and ergonomics

Hi folks, I don’t know if I saw this here but, here’s a new programming language, called Roc Reminds me a bit of Elm and thus Haskell. ...

#programminguages #functional-programming

49 4145 14

3 years ago

New

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 4341 1

3 years ago

New

Artificial Intelligence Forum

DeepSeek (671B) running on a cluster of 8 Mac Mini Pros with 64GB RAM each

This is cool! DEEPSEEK-V3 ON M4 MAC: BLAZING FAST INFERENCE ON APPLE SILICON We just witnessed something incredible: the largest open-s...

#ai #macs /deepseek

0 2498 1

3 months ago

New

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

nicoatridge

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

Marked As Solved

mfazio23

Popular Prag Prog topics

Distributed Services With Go - Agent_test.go error line 77

The Ray Tracer Challenge - where are the errata?

The Ray Tracer Challenge: "Computing the normal on a transformed sphere" ebook test

Concurrent Data Processing in Elixir: various errata

Distributed Services with Go: Chapter 3 suggestions

Web Development with Clojure, Third Edition (vB17.0): create table syntax invalid

Build a Weather Station with Elixir and Nerves: 'mix deps.get' does not work if user has not created a keyfile (page 16)

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

Python Testing with pytest, Second Edition: unrecognized arguments error (page 122)

Programming Phoenix LiveView: Live Upload Match Error

Other popular topics

AMD or Intel for Programming with Linux as the OS?

Would you use Erlang now when there is Elixir?

Bit – A modernized Git CLI written in Go

Your Mac Isn't Yours - worse, it spies on you and sends it home unencrypted

Spotlight: Paolo Perrotta (Author)

Programming Crystal Book Club

Can AI/ML predict a lottery win?

Roc Language - a new purely functional programming language built for speed and ergonomics

Effective Haskell

DeepSeek (671B) running on a cluster of 8 Mac Mini Pros with 64GB RAM each

Latest in PragProg

Latest (all)

We ❤️ helpful members!

Categories:

Popular Portals

We're in Beta

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

nicoatridge

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

Marked As Solved

mfazio23

Popular Prag Prog topics

Distributed Services With Go - Agent_test.go error line 77

The Ray Tracer Challenge - where are the errata?

The Ray Tracer Challenge: "Computing the normal on a transformed sphere" ebook test

Concurrent Data Processing in Elixir: various errata

Distributed Services with Go: Chapter 3 suggestions

Web Development with Clojure, Third Edition (vB17.0): create table syntax invalid

Build a Weather Station with Elixir and Nerves: 'mix deps.get' does not work if user has not created a keyfile (page 16)

Kotlin and Android Development: Could not get unknown property ‘kotlin_version’…

Python Testing with pytest, Second Edition: unrecognized arguments error (page 122)

Programming Phoenix LiveView: Live Upload Match Error

Other popular topics

AMD or Intel for Programming with Linux as the OS?

Would you use Erlang now when there is Elixir?

Bit – A modernized Git CLI written in Go

Your Mac Isn't Yours - worse, it spies on you and sends it home unencrypted

Spotlight: Paolo Perrotta (Author)

Programming Crystal Book Club

Can AI/ML predict a lottery win?

Roc Language - a new purely functional programming language built for speed and ergonomics

Effective Haskell

DeepSeek (671B) running on a cluster of 8 Mac Mini Pros with 64GB RAM each

Latest in PragProg

Latest (all)

We ❤️ helpful members!

Devtalk Sponsors

Categories:

Popular Portals

Devtalk Sponsors

We're in Beta