java.lang.NoClassDefFoundError

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    • java.lang.NoClassDefFoundError: net/minecraft/server/v1_9_R1/Packet at me.blackvein.quests.NpcEffectThread.showEffect_1_9_R1(NpcEffectThread.java:134)[?:?] at me.blackvein.quests.NpcEffectThread.showEffect(NpcEffectThread.java:79)[?:?] at me.blackvein.quests.NpcEffectThread.run(NpcEffectThread.java:45)[?:?] at org.bukkit.craftbukkit.v1_9_R2.scheduler.CraftTask.run(CraftTask.java:71)[spigot.jar:git-Spigot-8a048fe-d8637df] at org.bukkit.craftbukkit.v1_9_R2.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350)[spigot.jar:git-Spigot-8a048fe-d8637df] at net.minecraft.server.v1_9_R2.MinecraftServer.D(MinecraftServer.java:734)[spigot.jar:git-Spigot-8a048fe-d8637df] at net.minecraft.server.v1_9_R2.DedicatedServer.D(DedicatedServer.java:399)[spigot.jar:git-Spigot-8a048fe-d8637df] at net.minecraft.server.v1_9_R2.MinecraftServer.C(MinecraftServer.java:665)[spigot.jar:git-Spigot-8a048fe-d8637df] at net.minecraft.server.v1_9_R2.MinecraftServer.run(MinecraftServer.java:564)[spigot.jar:git-Spigot-8a048fe-d8637df] at java.lang.Thread.run(Unknown Source)[?:1.8.0_91] Caused by: java.lang.ClassNotFoundException: net.minecraft.server.v1_9_R1.Packet at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:91)[spigot.jar:git-Spigot-8a048fe-d8637df] at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86)[spigot.jar:git-Spigot-8a048fe-d8637df] at java.lang.ClassLoader.loadClass(Unknown Source)[?:1.8.0_91] at java.lang.ClassLoader.loadClass(Unknown Source)[?:1.8.0_91] ... 10 more

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