Question by srajabi · Aug 04, 2015 at 04:32 AM · android java androidplugin

Having issue with "unable to convert class to dex format" extremely simple JAR in empty project.

I'm having this error: CommandInvokationFailure: Unable to convert classes into dex format. See the Console for details. C:\Program Files\Java\jdk1.8.0_40\bin\java.exe -Xmx2048M -Dcom.android.sdkmanager.toolsdir="C:/Users/srajabi/AppData/Local/Android/android-sdk\tools" -Dfile.encoding=UTF8 -jar "C:/Program Files (x86)/Unity5/Editor/Data/BuildTargetTools/AndroidPlayer\sdktools.jar"

To reproduce see this: eclipse project

Or make a java project, reference the unity classes "classes.jar" (Unity version 5.1.1f1) and "android.jar" (version 22, or ICS).

Put in any class.

Make an empty Unity 5.1.1f1 project and put the jar in the plugins folder. Try to build for android and you'll get this issue.

androidunitytest.zip (3.6 kB)

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srajabi · Aug 04, 2015 at 12:03 AM 0

Even simpler. Just make a JAR with JDK 1.8, don't include anything, put one empty class in and then put the resulting JAR in the unity project. Still doesn't work.

srajabi · Aug 04, 2015 at 12:41 AM 0

Figured it out.

See here: http://docs.unity3d.com/Manual/PluginsForAndroid.html Note: Unity expects Java plugins to be built using JDK v1.6. If you are using v1.7, you should include “-source 1.6 -target 1.6” in the command line options to the compiler.

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Having issue with "unable to convert class to dex format" extremely simple JAR in empty project.

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