ok, now things get complicated. Previously, I made an example of code sharing between iOS and Android via Kotlin native. I even made example of code sharing among jvm, js and kotlin native. They all works. Now the requirement is changed to I need to further separate the platform API into a separate repo. So, now the overall structure becomes something like this: project-platforms: -

common

module: Only contain

expect class

and no implementation just like plain

interface

. Build with plugin

kotlin-platform-common

- `platformsjvm`: actual implementation on jvm. It generates library, and I tried in Android Studio, it works. Build with plugin

kotlin-platform-jvm

project-lib: - `common`: It contains code which mean to be the same across all platforms. But it depends on the API from

common

of

project-platforms

. Which means it just depends on the

common

code rather than the actual implementation of a certain platform. Build with plugin

kotlin-platform-common

- `forBuild:JVM`: Its purpose is for testing

common

and build for jvm. So it just embed the source code from

common

, and add the generated jar file from

project-platforms :platforms:jvm

as dependencies and do the test and build. The testing part works, it will compile and run the test from

common

. And build without error. Now the problem is when use the generated jar file from

forBuild:JVM

in Android studio. It said:

java.lang.NoClassDefFoundError: Failed resolution of: Lnz/salect/kotlinidiom/Platform; Caused by: java.lang.ClassNotFoundException: Didn't find class "nz.salect.kotlinidiom.Platform" on path: DexPathList[[zip file "/data/app/nz.salect.handset-1/base.apk", zip file "/data/app/nz.salect.handset-1/split_lib_dependencies_apk.apk"],nativeLibraryDirectories=[/data/app/nz.salect.handset-1/lib/x86, /system/lib, /vendor/lib]]

And the

Platform

class is from

project-platforms

which already add its jar file as dependencies. I tried built with either

kotlin-platform-jvm

or

org.jetbrains.kotlin.jvm

, both yield the same error. What am I missing here?

cc @ilya.gorbunov @udalov

@anton.bannykh To make it more modularize so we can write other libs like

project-lib

. I am not fully agree with this change due to the fact that KMP is still pretty new, but I just think it should work because it is really isn’t that complex, so I decide to give it a try. 🙂 I think I miss something here.

@albertgao Do you have a dependency on

:platforms:jvm

in

forBuild:jvm

project?

@ilya.gorbunov Hi, since they are in different projects, so I add the generated jar file as a dependency like

compile files('../../project-platforms/build/platforms-jvm.jar')

, but it doesn’t work as I described in the post, so I just embed the source code instead, then it works.

Could you check that jar, whether it contains the missing Platform class?

@ilya.gorbunov So, how could I know that it doesn’t contain that missing platform class?