java.lang.NoClassDefFoundError: joptsimple/OptionException

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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.


you can change your scala version to 2.11.11

Solutions on the web

via GitHub by inodb
, 1 year ago
java.lang.ClassNotFoundException: joptsimple.OptionException
at java.lang.ClassLoader.loadClass(
at sun.misc.Launcher$AppClassLoader.loadClass(
at java.lang.ClassLoader.loadClass(
at org.mskcc.cbio.portal.scripts.ConsoleRunnable.runInConsole(
at org.mskcc.cbio.portal.scripts.ImportCancerStudy.main(

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