java.lang.IncompatibleClassChangeError

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  • java.lang.IncompatibleClassChangeError: Class com.google.gson.FieldNamingPolicy$1 does not implement the requested interface com.google.gson.d at com.google.gson.rb.a(Unknown Source)[?:?] at com.google.gson.rb.a(Unknown Source)[?:?] at com.google.gson.rb.a(Unknown Source)[?:?] at com.google.gson.rb.a(Unknown Source)[?:?] at com.google.gson.e.a(Unknown Source)[?:?] at com.google.gson.e.a(Unknown Source)[?:?] at com.google.gson.e.a(Unknown Source)[?:?] at com.minelazz.epicworldgenerator.nativeAPI.implementations.v1_9_R1.NMSImplementation.a(Unknown Source)[?:?] at com.minelazz.epicworldgenerator.EpicConfigManager.a(Unknown Source)[?:?] at com.minelazz.epicworldgenerator.EpicWorldGenerator.onEnable(Unknown Source)[?:?] at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:291)[patched_1.9.jar:git-Paper-472] at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:332)[patched_1.9.jar:git-Paper-472] at com.massivecraft.massivelag.inject.event.MassiveLagPluginLoader.enablePlugin(MassiveLagPluginLoader.java:216)[MassiveLag.jar:?] at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:407)[patched_1.9.jar:git-Paper-472] at org.bukkit.craftbukkit.v1_9_R1.CraftServer.loadPlugin(CraftServer.java:355)[patched_1.9.jar:git-Paper-472] at org.bukkit.craftbukkit.v1_9_R1.CraftServer.enablePlugins(CraftServer.java:315)[patched_1.9.jar:git-Paper-472] at net.minecraft.server.v1_9_R1.DedicatedServer.init(DedicatedServer.java:206)[patched_1.9.jar:git-Paper-472] at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:564)[patched_1.9.jar:git-Paper-472] at java.lang.Thread.run(Thread.java:745)[?:1.8.0_60]
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