Kotlinx.coroutines: There is a problem about kotlinx.coroutines 0.23.1

[zondaOf2012]

android studio 3.1.3
kotlin version 1.2.30

When implementation kotlinx.coroutines 0.23.1 in the gradle.

Problems with Project \:
More than one file was found with OS independent path 'META-INF/main.kotlin_module'

[JakeWharton]

You should be excluding all .kotlin_module files from your APK in the first place.

This will be fixed by updating the library's Kotlin to 1.2.50 and recompiling as it will honor archivesBaseName in common projects.

[zondaOf2012]

@JakeWharton Thanks for your answer.

But it didn't solve the problem.

According this plan and updating the library's Kotlin to 1.2.50，however, another problem appears: Please select android SDK.

I'm already specifies these options：
compileSdkVersion 27
buildToolsVersion '27.0.3'
Android SDK Path

In the project's "app.iml" file , I found orderEntry type="jdk" jdkName="Android API 27 Platform" jdkType="Android SDK" change to orderEntry type="jdk" jdkName="Kotlin SDK" jdkType="KotlinSDK"

[zondaOf2012]

In order to use kotlin-coroutines, 0.19.3 version had no choice.

This current plans:
android studio version 3.1.3
kotlin version 1.2.30
kotlinx-coroutines-core 0.19.3

[mrmitew]

Just add

packagingOptions {
        exclude 'META-INF/main.kotlin_module'
    }

inside the android {} closure in your build.gradle file and it will compile fine ;)

[zondaOf2012]

@mrmitew This can't solve my problems.

According this plan and updating the library's Kotlin to 1.2.50，however, another problem appears: Please select android SDK.

[zondaOf2012]

If I 'd start to config with this：

This is OK !

But, discover a very strange problem 😂：

If I change to config with this:

As mentioned above, problem will reappear. It doesn’t matter if I change back to first picture and clean/rebuild project etc.

Now，I change to config with this:

This is OK ! Now, There is no problem if I change back to first picture.

In a word, I have found the solution, but I did not understand.

[elizarov]

Can you, please, try with the latest released version of coroutines: 0.23.3. Do you have this problem?

[zondaOf2012]

@elizarov Thank you for the reply.
If a new project begins with 0.23.3, this's usually fine. However, if a new project begin with 0.23.2, then upgrade 0.23.3, problem will reappear. In this case, I try to change version of coroutines to 0.19.3, then upgrade 0.23.3 ,this's usually fine.

[tmexcept]

@zondaOf2012 change kotlin_version from '1.2.50' to '1.2.40', it will be ok
under android studio 3.1.3

[zondaOf2012]

@tmexcept Thank you~~

[nb312]

if the version is '1.2.50' there is a problem in windows, just change to '1.2.40', the problem will be solved.
@mrmitew @zondaOf2012 Thank both of you.