[07:59:34 WARN]: [GiantTrees] Task #124484 for GiantTrees v1.1 generated an exception
java.lang.VerifyError: class com.ryanmichela.trees.history.NoChangeBukkitWorld overrides final method setBlockType.(Lcom/sk89q/worldedit/Vector;I)Z
        at java.lang.ClassLoader.defineClass1(Native Method) ~[?:1.7.0_71]
        at java.lang.ClassLoader.defineClass(ClassLoader.java:800) ~[?:1.7.0_71]
        at java.security.SecureClassLoader.defineClass(SecureClassLoader.java:142) ~[?:1.7.0_71]
        at java.net.URLClassLoader.defineClass(URLClassLoader.java:449) ~[?:1.7.0_71]
        at java.net.URLClassLoader.access$100(URLClassLoader.java:71) ~[?:1.7.0_71]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:361) ~[?:1.7.0_71]
        at java.net.URLClassLoader$1.run(URLClassLoader.java:355) ~[?:1.7.0_71]
        at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_71]
        at java.net.URLClassLoader.findClass(URLClassLoader.java:354) ~[?:1.7.0_71]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[spigot.jar:git-Spigot-81e4ab7-6575597]
        at org.bukkit.plugin.java.JavaPluginLoader.getClassByName(JavaPluginLoader.java:195) ~[spigot.jar:git-Spigot-81e4ab7-6575597]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:97) ~[spigot.jar:git-Spigot-81e4ab7-6575597]
        at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot.jar:git-Spigot-81e4ab7-6575597]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:425) ~[?:1.7.0_71]
        at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ~[?:1.7.0_71]
        at com.ryanmichela.trees.rendering.WorldChangeTracker.applyChanges(WorldChangeTracker.java:72) ~[?:?]
        at com.ryanmichela.trees.rendering.Draw3d.applyChanges(Draw3d.java:41) ~[?:?]
        at com.ryanmichela.trees.rendering.TreeRenderer$1$1.run(TreeRenderer.java:85) ~[?:?]
        at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot.jar:git-Spigot-81e4ab7-6575597]
        at org.bukkit.craftbukkit.v1_8_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot.jar:git-Spigot-81e4ab7-6575597]
        at net.minecraft.server.v1_8_R1.MinecraftServer.z(MinecraftServer.java:694) [spigot.jar:git-Spigot-81e4ab7-6575597]
        at net.minecraft.server.v1_8_R1.DedicatedServer.z(DedicatedServer.java:316) [spigot.jar:git-Spigot-81e4ab7-6575597]
        at net.minecraft.server.v1_8_R1.MinecraftServer.y(MinecraftServer.java:623) [spigot.jar:git-Spigot-81e4ab7-6575597]
        at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:526) [spigot.jar:git-Spigot-81e4ab7-6575597]
        at java.lang.Thread.run(Thread.java:745) [?:1.7.0_71]