java.lang.NoClassDefFoundError: com/redhat/ceylon/common/tools/ModuleSpec$Option

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Samebug tips


you can change your scala version to 2.11.11

Expert tip

A few things cause this exception:
1) Check if you have all jars and if they're in the correct path.
2) Your classpath might be broken, you can define it in the command line with java -cp yourClassPath or at your IDE if you're using one.

Solutions on the web

via Google Groups by Unknown author, 1 year ago
java.lang.NoClassDefFoundError: com/redhat/ceylon/common/tools/ModuleSpec$Option
at java.lang.ClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at io.vertx.lang.ceylon.CeylonVerticleFactory.createVerticle(
at io.vertx.core.impl.DeploymentManager.createVerticles(
at io.vertx.core.impl.DeploymentManager.lambda$null$0(
at io.vertx.core.impl.ContextImpl.lambda$executeBlocking$2(
at java.util.concurrent.ThreadPoolExecutor.runWorker(
at java.util.concurrent.ThreadPoolExecutor$

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