How to find which files are using a particular external library in an Android Studio project

Question

The problem

Under "External Libraries" in the project view of an Android Studio project I have these libraries "stax-stax-api:1.0.1@jar" and "xpp3:xpp3:1.1.3.3@jar". They're causing me problems such that I can't build the project. I can't seem to figure out how they got there or where they're being used.

The error message I get when I build right now is:

"Error:Error: xpp3 defines classes that conflict with classes now provided by Android. Solutions include finding newer versions or alternative libraries that don't have the same problem (for example, for httpclient use HttpUrlConnection or okhttp instead), or repackaging the library using something like jarjar. [DuplicatePlatformClasses]"

The error message is good except that it doesn't tell me who's using this lib in the first place.

The question

Is there an easy way to find out where they're being used in the project? Or even a way that it's easy but doesn't require looking at every file? It's a multi module project with lots of files. If I could delete them this would tell me but there's no delete option.

This could be something really simple that I'm overlooking. Any help appreciated. Happy to add more info as requested.

What I've tried

I've tried to "Analyze Dependencies" but it doesn't show me any references that I can see.

Update: I forgot to mention that I've also tried ./gradlew app:dependencies but it only tells me that my project depends on these libraries. I already know this. Is there a way to get some more specific information so I can remove the libraries?

Update 2: The accepted answer does work but I needed to redirect console output.

Answer 1

gradle app:dependencies

It will show you the dependencies tree of your project

At this link it is explained quite well about the command and how to use it.

Use this to redirect console output if it's clipped:

./gradlew app:dependencies > dependencies.txt