java.lang.ClassNotFoundException: cpw.mods.fml.common.launcher.FMLTweaker

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If you're using Hibernate, this indicates you're missing FasterXML Classmate dependency, which you can add to your dependencies. To add it, the groupId is com.fasterxml and artifactId is Classmate.

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NoClassDefFoundError means java has failed to find a class you're trying to instantiate, look if you've added the class you're trying to instantiate to the dependencies.

Solutions on the web

via GitHub by tilly1709
, 2 years ago
cpw.mods.fml.common.launcher.FMLTweaker
via GitHub by UnvoicedTiger6
, 2 years ago
cpw.mods.fml.common.launcher.FMLTweaker
via feed-the-beast.com by Unknown author, 1 year ago
cpw.mods.fml.common.launcher.FMLTweaker
via minecraft.fr by Unknown author, 1 year ago
cpw.mods.fml.common.launcher.FMLTweaker
java.lang.ClassNotFoundException: cpw.mods.fml.common.launcher.FMLTweaker
at java.net.URLClassLoader$1.run(Unknown Source)
at java.net.URLClassLoader$1.run(Unknown Source)
at java.security.AccessController.doPrivileged(Native Method)
at java.net.URLClassLoader.findClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at sun.misc.Launcher$AppClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.ClassLoader.loadClass(Unknown Source)
at java.lang.Class.forName0(Native Method)
at java.lang.Class.forName(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:98)

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