[16:00:55 INFO]: [mcMMO] Enabling mcMMO v1.5.05-SNAPSHOT-b${BUILD_NUMBER}
[16:00:55 ERROR]: [mcMMO] There was an error while enabling mcMMO!
[16:00:55 WARN]: java.lang.NoSuchMethodError: org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(Ljava/io/InputStream;)Lorg/bukkit/configuration/file/YamlConfiguration;
[16:00:55 WARN]: at com.gmail.nossr50.config.HiddenConfig.load(HiddenConfig.java:33)
[16:00:55 WARN]: at com.gmail.nossr50.config.HiddenConfig.<init>(HiddenConfig.java:20)
[16:00:55 WARN]: at com.gmail.nossr50.config.HiddenConfig.getInstance(HiddenConfig.java:25)
[16:00:55 WARN]: at com.gmail.nossr50.mcMMO.loadConfigFiles(mcMMO.java:404)
[16:00:55 WARN]: at com.gmail.nossr50.mcMMO.onEnable(mcMMO.java:145)
[16:00:55 WARN]: at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264)
[16:00:55 WARN]: at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337)
[16:00:55 WARN]: at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:403)
[16:00:55 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:381)
[16:00:55 WARN]: at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:330)
[16:00:55 WARN]: at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:206)
[16:00:55 WARN]: at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:545)
[16:00:55 WARN]: at java.lang.Thread.run(Thread.java:748)
[16:00:55 INFO]: [mcMMO] Disabling mcMMO v1.5.05-SNAPSHOT-b${BUILD_NUMBER}
[16:00:55 ERROR]: Error occurred while disabling mcMMO v1.5.05-SNAPSHOT-b${BUILD_NUMBER} (Is it up to date?)
java.lang.NoSuchMethodError: org.bukkit.configuration.file.YamlConfiguration.loadConfiguration(Ljava/io/InputStream;)Lorg/bukkit/configuration/file/YamlConfiguration;
at com.gmail.nossr50.config.AutoUpdateConfigLoader.loadFile(AutoUpdateConfigLoader.java:28) ~[?:?]
at com.gmail.nossr50.config.ConfigLoader.<init>(ConfigLoader.java:26) ~[?:?]
at com.gmail.nossr50.config.AutoUpdateConfigLoader.<init>(AutoUpdateConfigLoader.java:22) ~[?:?]
at com.gmail.nossr50.config.AdvancedConfig.<init>(AdvancedConfig.java:21) ~[?:?]
at com.gmail.nossr50.config.AdvancedConfig.getInstance(AdvancedConfig.java:27) ~[?:?]
at com.gmail.nossr50.skills.alchemy.Alchemy.<clinit>(Alchemy.java:51) ~[?:?]
at com.gmail.nossr50.mcMMO.onDisable(mcMMO.java:211) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:361) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at org.bukkit.plugin.SimplePluginManager.disablePlugin(SimplePluginManager.java:422) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at com.gmail.nossr50.mcMMO.onEnable(mcMMO.java:201) [mcMMO.jar:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:337) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:403) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:381) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:330) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:206) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:545) [minecraft_server.jar:git-Spigot-2cf50f0-2b93d83]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_152]