Android Gradle compiling commons-io creates duplicate in library tree

Question

I\'m trying to build and maintain an old application for work but I can\'t get past the build phase. In my app/build.gradle file I have

depend         


        

Answer 1

It could be possible that other libraries in the project have the commons-io dependency causing duplicate entries.

See if this helps - Gradle Duplicate Entry: java.util.zip.ZipException

Answer 2

I know that this thread is old enough, but if someone faces this issue, the reason may be in the artifact itself.

com.apache.commons:commons-io:XXX has been moved to commons-io:commons-io:XXX and fetching of the old artifact may produce unexpected behavior.

Answer 3

There is a simple way to exclude the double classes. At first you need to find out which dependency is causing that if you know that use this code:

compile('com.example:some-dependency:4.2') {
    exclude module: 'commons-io'
}

Answer 4

There is an option to fix it on gradle dependency resolution level

configurations.all {
    resolutionStrategy.dependencySubstitution {
        substitute module('org.apache.commons:commons-io:1.3.2') with module('commons-io:commons-io:1.3.2')
    }
}

Reason of the conflict is that org.apache.commons:commons-io:1.3.2 was pushed by mistake https://stackoverflow.com/a/37421794/624706

You can see where dependency is coming from with

gradle :main:dependencyInsight --configuration compile --dependency commons-io