Скачать или смотреть Fixing Kotlin Multiplatform Build Failures: Target Configuration for Android

Discover how to solve Kotlin Multiplatform build failures caused by incorrect Android target versions, ensuring a smooth development experience.
---
This video is based on the question https://stackoverflow.com/q/63064301/ asked by the user 'DatLag' ( https://stackoverflow.com/u/11306245/ ) and on the answer https://stackoverflow.com/a/63073489/ provided by the user 'Sam Hill' ( https://stackoverflow.com/u/6621956/ ) at 'Stack Overflow' website. Thanks to these great users and Stackexchange community for their contributions.

Visit these links for original content and any more details, such as alternate solutions, latest updates/developments on topic, comments, revision history etc. For example, the original title of the Question was: Kotlin Multiplatform build failure due to android target

Also, Content (except music) licensed under CC BY-SA https://meta.stackexchange.com/help/l...
The original Question post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license, and the original Answer post is licensed under the 'CC BY-SA 4.0' ( https://creativecommons.org/licenses/... ) license.

If anything seems off to you, please feel free to write me at vlogize [AT] gmail [DOT] com.
---
Fixing Kotlin Multiplatform Build Failures: Target Configuration for Android

Kotlin Multiplatform is a powerful tool that allows developers to share code across various platforms, bridging the gap between mobile, web, and desktop applications. However, building a Kotlin Multiplatform library, especially one that supports Android, can sometimes lead to frustrating errors. One common issue developers face is build failures due to Android target misconfiguration. This guide will guide you through understanding and fixing this problem, ensuring your project builds smoothly.

The Problem

While trying to build a Kotlin Multiplatform library with Android support using Gradle, you may encounter an error message regarding the inability to find a target version. Here are a couple of examples of such errors:

Error Message 1:

[[See Video to Reveal this Text or Code Snippet]]

Error Message 2:

[[See Video to Reveal this Text or Code Snippet]]

These messages indicate that the build system is unable to locate the specified Android SDK target version, which can halt your development process.

Understanding the Cause

The error typically arises from how the compileSdkVersion is defined in your project's build.gradle.kts file. In Kotlin DSL for Gradle, it is crucial to use the correct data type when specifying the SDK version. Using a string can lead to unexpected behavior and subsequently produce the errors you see.

Common Mistakes:

Using compileSdkVersion = "29" instead of just providing the integer like compileSdkVersion(29).

The Solution: Correct Configuration

To fix this error, it's essential to modify the way you configure the compileSdkVersion in the lib/build.gradle.kts file. Here's how to implement the correct syntax:

Step-by-Step Fix:

Locate the lib/build.gradle.kts file:

This file contains the configurations specific to your library module.

Modify the SDK Configuration:

Replace the existing line where compileSdkVersion is defined with the following line:

[[See Video to Reveal this Text or Code Snippet]]

By passing the integer directly to compileSdkVersion, Gradle automatically appends the required prefix (android-), setting the version correctly.

Additional Tips:

Always ensure that your development environment includes the necessary Android SDK platforms. You can verify which SDK versions you have installed using Android Studio or the command line.

Check for any potential updates in your tools and libraries that might affect compatibility with your project setup.

Conclusion

By following the steps outlined above, you should be able to resolve Kotlin Multiplatform build failures related to Android target configuration. Ensuring that you use the correct syntax for specifying compileSdkVersion is essential for a smooth development experience. If you encounter further issues, revisiting your setup and dependencies is always a good practice. Happy coding!