As of early June, Briefcase Android projects fail to build, with the message:
e: /Users/.../kotlin-stdlib-common-1.5.10.jar!/META-INF/kotlin-stdlib-common.kotlin_module: Module was compiled with an incompatible version of Kotlin. The binary version of its metadata is 1.5.1, expected version is 1.1.16.
To Reproduce
briefcase run android with a helloworld project.
Additional context
This appears to be due to the Kotlin 1.5.0 release.
Short term, increasing the ext.kotlin_version to "1.4.30" seems to fix the problem. Increasing to "1.5.0" fails because the Kotlin-gradle-plugin is incompatible.
Longer term... this is the second time in a month that a perfectly functioning build file has stopped working because of a Kotlin-related issue. This is approximately 2 times too many. Given we're not actually relying on any key Kotlin functionality, I'm inclined to rewrite Helpers.kt in Java and avoid these problems entirely in the future.
freakboy3742
commented
3 years ago
As of early June, Briefcase Android projects fail to build, with the message:
To Reproduce
briefcase run androidwith a helloworld project.Additional context
This appears to be due to the Kotlin 1.5.0 release.
Short term, increasing the
ext.kotlin_versionto "1.4.30" seems to fix the problem. Increasing to "1.5.0" fails because the Kotlin-gradle-plugin is incompatible.Longer term... this is the second time in a month that a perfectly functioning build file has stopped working because of a Kotlin-related issue. This is approximately 2 times too many. Given we're not actually relying on any key Kotlin functionality, I'm inclined to rewrite Helpers.kt in Java and avoid these problems entirely in the future.