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``` :android:app:transformClassesWithDexForDebug D...
# kotlin-native
b
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:android:app:transformClassesWithDexForDebug
Dex: Error converting bytecode to dex:
Cause: Dex cannot parse version 52 byte code.
This is caused by library dependencies that have been compiled using Java 8 or above.
If you are using the 'java' gradle plugin in a library submodule add
targetCompatibility = '1.7'
sourceCompatibility = '1.7'
to that submodule's build.gradle file.
    UNEXPECTED TOP-LEVEL EXCEPTION:
    java.lang.RuntimeException: Exception parsing classes
        at com.android.dx.command.dexer.Main.processClass(Main.java:781)
        at com.android.dx.command.dexer.Main.processFileBytes(Main.java:747)
        at com.android.dx.command.dexer.Main.access$1200(Main.java:88)
        at com.android.dx.command.dexer.Main$FileBytesConsumer.processFileBytes(Main.java:1689)
        at com.android.dx.cf.direct.ClassPathOpener.processArchive(ClassPathOpener.java:284)
        at com.android.dx.cf.direct.ClassPathOpener.processOne(ClassPathOpener.java:166)
        at com.android.dx.cf.direct.ClassPathOpener.process(ClassPathOpener.java:144)
        at com.android.dx.command.dexer.Main.processOne(Main.java:695)
        at com.android.dx.command.dexer.Main.processAllFiles(Main.java:592)
        at com.android.dx.command.dexer.Main.runMonoDex(Main.java:321)
        at com.android.dx.command.dexer.Main.run(Main.java:292)
        at com.android.builder.internal.compiler.DexWrapper.run(DexWrapper.java:54)
        at com.android.builder.core.DexByteCodeConverter.lambda$dexInProcess$0(DexByteCodeConverter.java:174)
        at java.util.concurrent.FutureTask.run(FutureTask.java:266)
        at java.util.concurrent.ThreadPoolExecutor.runWorker(ThreadPoolExecutor.java:1149)
        at java.util.concurrent.ThreadPoolExecutor$Worker.run(ThreadPoolExecutor.java:624)
        at java.lang.Thread.run(Thread.java:748)
    Caused by: 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:476)
        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:793)
        at com.android.dx.command.dexer.Main.access$1600(Main.java:88)
        at com.android.dx.command.dexer.Main$ClassParserTask.call(Main.java:1728)
        at com.android.dx.command.dexer.Main.processClass(Main.java:779)
g
Looks that you compiled Android app with target java 1.8 instead of 1.6-1.7. Also, maybe you have old version of Android Build Tools
b
emm, i'm using new build tools. its 26.0.2 and gradle 4.4.1
apart from that, I'm just clone the source and not changing anything
v
Try to run gradle with jdk 1.8
b
yes, I have it, still not working
v
What is your JAVA_HOME set to?
b
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echo $JAVA_HOME
/Library/Java/Home
/Library/Java/Home/bin/java -version
Picked up JAVA_TOOL_OPTIONS: -Dapple.awt.UIElement=true
java version "1.8.0_162"
Java(TM) SE Runtime Environment (build 1.8.0_162-b12)
Java HotSpot(TM) 64-Bit Server VM (build 25.162-b12, mixed mode)
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