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Editorial Team
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Asked: 2026-06-12T20:39:57+00:00

I need help with a project dependency issue in the Android SDK. I have

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I need help with a project dependency issue in the Android SDK.

I have the following projects:
“Sync” (a Java only project)
“Agonis” (an Android Library project)
“Dragonis” (an Android application project)

Agonis has a project dependency on Sync, and Dragonis has a project dependency on Agonis, like so:

Dragonis->Agonis->Sync

I have correctly used the Properties->Android->Library dialog to add Agonis as an Android Library. I have exported the Sync project in the Agonis build path setup:

https://i.stack.imgur.com/GsQIR.png

In the Dragonis project, I see both Agonis and Sync in the “Android Dependencies” virtual folder:

https://i.stack.imgur.com/EhH8L.png

From here, I would expect everything to just work, but it doesn’t.

I can start the app, but as soon as I instantiate a type from the Agonis project (com.mob.agonis.AgonisServer), I get a NoClassDefFoundError. If it matters, the Agonis type I am trying to instantiate extends a type that is in the Sync project (com.mob.sync.Server).

I tried cleaning all the projects, and using Android Tools->Fix Project Properties on both Agonis and Dragonis to no avail.

Am I overlooking something?

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1 Answer

  1. Editorial Team

    I figured it out.

    The Sync Java-only library was compiling to 1.7 Java byte code. Android only supports converting Java 1.6 byte code to DEX.

    Scroll to the top of the console, kids.

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