问题
Our project uses RxJava 1:
compile 'io.reactivex:rxjava:1.1.6'
There is a library we use that uses RxJava 2 internally:
compile 'io.reactivex.rxjava2:rxjava:2.0.9'
When I do ./gradlew assembleDebug I get this error:
com.android.build.api.transform.TransformException:com.android.builder.packaging.DuplicateFileException: Duplicate files copied in APK META-INF/rxjava.properties
File1: /Users/darklord/.gradle/caches/modules-2/files-2.1/io.reactivex/rxjava/1.1.6/2586312cd2b8a511e4c6236736f5a039fc0f2273/rxjava-1.1.6.jar
File2: /Users/darklord/.gradle/caches/modules-2/files-2.1/io.reactivex.rxjava2/rxjava/2.0.9/a5aad74623ade11162dd53cdf0645a51b12221a0/rxjava-2.0.9.jar
I think it is said that RxJava 1 and RxJava 2 can be used at the same time, why I am still getting this error?
回答1:
rxjava.properties file is not required at run time.
So you can exclude the file while packaging your android app by setting packagingOptions in app/build.gradle file as shown below.
android {
...
packagingOptions {
exclude 'META-INF/**rxjava.properties**'
}
}
来源：https://stackoverflow.com/questions/44792066/rxjava-1-and-rxjava-2-in-the-same-project