"Bad class file magic" from setting up Android Studio for NDK

Question

I'm setting up a project to work with Androids NDK. By that I have to use the experimental Gradle plugin. Gradle syncs without errors and the make is without errors. But when I try to 'run app' Gradle gives this error message:

UNEXPECTED TOP-LEVEL EXCEPTION: Error:com.android.dx.cf.iface.ParseException: bad class file magic (cafebabe) or version (0034.0000) at com.android.dx.cf.direct.DirectClassFile.parse0(DirectClassFile.java:472) at com.android.dx.cf.direct.DirectClassFile.parse(DirectClassFile.java:406) at com.android.dx.cf.direct.DirectClassFile.parseToInterfacesIfNecessary(DirectClassFile.java:388) at com.android.dx.cf.direct.DirectClassFile.getMagic(DirectClassFile.java:251) at com.android.dx.command.dexer.Main.parseClass(Main.java:764) at com.android.dx.command.dexer.Main.access$1500(Main.java:85) at com.android.dx.command.dexer.Main$ClassParserTask.call(Main.java:1684) at com.android.dx.command.dexer.Main.processClass(Main.java:749) ... 19 more

From previous questions I can see that it might depend on me using Java 8 and Android requiring Java 7. But my other projects compile and run without this issue.

Answer 1

I missed this answer and the code snippet that solved the problem.

model {
    android {
        compileOptions.with {
            sourceCompatibility = JavaVersion.VERSION_1_7
            targetCompatibility = JavaVersion.VERSION_1_7
        }
        ... //rest of gradle code
    }
}

Sloppy research from my side.