Gradle finished with non-zero exit value 1 (ic_launcher.png: error: Duplicate file)

Question

I got this strange error with gradle, please help me!

/.../app/build/intermediates/res/debug/drawable-xxhdpi-v4/ic_launcher.png:
    error: Duplicate file
/.         


        

Answer 1

I had the same problem and what follows worked for me:

• rename your icon
• add tools:replace="android:icon" to your <application> tag in the Manifest

You can try just the first step, but I still had problems when merging the manifest files. This way it should override whatever resource was used in the library.

Answer 2

Upgrade to 1.2.3, but ensure that your gradle and buildToolsVersion are identically in your project and the used aars.

In case you use external libs where you can't control the gradle/build version: Contact the author or check the sources by your own. Some libraries have unused launcher icons which will cause this conflict. Removing this icons will solve your problem. Identically named sources (e.g menu.xml) could also cause this issue in rare cases. An easy workaround would be to rename your ressource.

Answer 3

I had the same problem while using a third party library.(RomainPiel/Shimmer-android library on Github)

To solve it, I moved my ic_launcher.png files from drawable folder to mipmap folder. And problem solved.

Answer 4

For me a simple "clean project" and "rebuild project" did the trick.

Answer 5

I managed to trigger this problem by inconsistent capitalisation of filename extensions. I had a .jpg image in one drawable directory, but an image of the same filename but .JPG in a different drawable directory. The filenames and directories were right, but the extensions weren't.

Answer 6

Just rename ic_launcher.png to something else (e.g ico_launcher.png)