I think multiple implementations may be in your classpath.

# android

[sglim]

I think multiple implementations may be in your classpath.

[J-Rojas]

This is in my common module:
dependencies {
compile "org.jetbrains.kotlinkotlin stdlib$kotlin_version"
compile "org.jetbrains.kotlinkotlin reflect$kotlin_version"
implementation "org.jetbrains.kotlinkotlin stdlib common$kotlin_version"
testCompile "org.jetbrains.kotlinkotlin test annotations common$kotlin_version"
testCompile "org.jetbrains.kotlinkotlin test common$kotlin_version"
}`

[J-Rojas]

This is in my Android module:

dependencies {
expectedBy project(':common')
compile "org.jetbrains.kotlinkotlin stdlib$kotlin_version"
compile "org.jetbrains.kotlinkotlin reflect$kotlin_version"
implementation fileTree(dir: 'libs', include: ['*.jar'])
implementation "org.jetbrains.kotlinkotlin stdlib jre7$kotlin_version"
implementation 'com.android.supportappcompat v726.1.0'
implementation 'com.android.supportrecyclerview v726.1.0'
implementation 'com.android.support.constraintconstraint layout1.0.2'
testImplementation 'junitjunit4.12'
androidTestImplementation 'com.android.support.test🏃1.0.1'
androidTestImplementation 'com.android.support.test.espressoespresso core3.0.1'
}

[J-Rojas]

Removing some of the implementation/compile lines from the Android project does not remove the linting errors.

[sglim]

I think this like may cause the problem:

implementation fileTree(dir: ‘libs’, include: [‘*.jar’])

Please search the libs folder for any redundant kotlin dependencies and remove it.

[J-Rojas]

Thanks for the suggestion, but there's no files in the lib folder. Taking that out has no effect. That was boiler plate generated by the Android Studio project.

[J-Rojas]

The problem I'm seeing is related to this, however there's other problems not fully described by this bug report:
https://youtrack.jetbrains.com/issue/KT-20406