Duplicated file: MANIFEST.MF

[Peter Siegmund]

I've got a problem with external dependencies. My project structure uses shared code for java projects and Android.

The shared code creates jar files and are linked (scope: compile) into my Android library (AAR). This works perfect. But then, I want to use the AAR dependency into my APK and I get an Duplicated file: MANIFEST.MF error, because the APK will include it.

<extractDuplicates>true</extractDuplicates> doesn't do anything for these manifest.mf file. How can I fix this?

This is the error from the shell:

[ERROR] Failed to execute goal com.simpligility.maven.plugins:android-maven-plugin:4.3.0:apk (default-apk) on project com.example: Duplicated file: MANIFEST.MF, found in archive ~/.m2/repository/com/example/shared/1.0.0-SNAPSHOT/com.example.shared-1.0.0-SNAPSHOT.jar and ~/.m2/repository/com/example/server/1.0.0-SNAPSHOT/com.example.server-1.0.0-SNAPSHOT.jar: Duplicate files at the same path inside the APK -> [Help 1]

[ERROR] [Help 1] http://cwiki.apache.org/confluence/display/MAVEN/MojoExecutionException

[Peter Siegmund]

I use shared code for Java and Android projects and can't build an APK, because of Duplicated file: MANIFEST.MF. The jar files are connected to my Android library with scope: compile.

The <extractDuplicates>true</extractDuplicates> doesn't do anything against this problem.

[ERROR] Failed to execute goal com.simpligility.maven.plugins:android-maven-plugin:4.3.0:apk (default-apk) on project com.example: Duplicated file: MANIFEST.MF, found in archive ~/.m2/repository/com/example/shared/1.0.0-SNAPSHOT/com.example.shared-1.0.0-SNAPSHOT.jar and ~/.m2/repository/com/example/server/1.0.0-SNAPSHOT/com.example.server-1.0.0-SNAPSHOT.jar: Duplicate files at the same path inside the APK -> [Help 1]

[ERROR]

[ERROR] To see the full stack trace of the errors, re-run Maven with the -e switch.

[ERROR] Re-run Maven using the -X switch to enable full debug logging.

[ERROR]

[ERROR] For more information about the errors and possible solutions, please read the following articles:

[Andrew Bowley]

Hi Peter

I found a bug with extractDuplicates which you can see at https://github.com/simpligility/android-maven-plugin/issues/660#

A possible workaround is to edit jar files in the repository to remove duplicates. This is ok for files like license.txt, but may be problematic for manifests.

Regards

Andrew

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[Csaba Kozák]

It seems that problem is now fixed. However i really advise against editing the dependency jar files downloaded to the
local repository. This means everytime somebody downloads such a dependency, he/she has to edit the jar file.
This will lead to problematic, unreproducable builds which will kick dependency management in the back.

You could use this workaround:

<excludeJarResources>
    <excludeJarResource>MANIFEST.MF,etc</excludeJarResource>
</excludeJarResources>