Friday, September 29, 2017

GWT 2.8.1 NoClassDefFoundError OptionJsInteropMode

Upgrading from GWT 2.7 to 2.8.1 with a fresh install of Eclipse Oxygen and receive this error when we trying to launch dev mode (sdm). Any ideas?

Exception in thread "main" java.lang.NoClassDefFoundError: com/google/gwt/dev/util/arg/OptionJsInteropMode$Mode



Caused by: java.lang.ClassNotFoundException:$Mode


at java.lang.ClassLoader.loadClass(

at sun.misc.Launcher$AppClassLoader.loadClass(

at java.lang.ClassLoader.loadClass(

... 2 more

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