[07:31:30 WARN]: [Announcement] Task #12 for Announcement v1.0.3 generated an exception
java.lang.NoSuchMethodError: org.bukkit.Bukkit.getOnlinePlayers()[Lorg/bukkit/entity/Player;
        at eu.tomwilson.announcement.Announcement.broadcastMessage(Announcement.java:221) ~[?:?]
        at eu.tomwilson.announcement.Announcement.broadcastNextMessage(Announcement.java:92) ~[?:?]
        at eu.tomwilson.announcement.AnnouncementThread.run(AnnouncementThread.java:30) ~[?:?]
        at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftTask.run(CraftTask.java:71) ~[spigot-1.9.jar:git-Spigot-dd155ed-23ad72b]
        at org.bukkit.craftbukkit.v1_9_R1.scheduler.CraftScheduler.mainThreadHeartbeat(CraftScheduler.java:350) [spigot-1.9.jar:git-Spigot-dd155ed-23ad72b]
        at net.minecraft.server.v1_9_R1.MinecraftServer.D(MinecraftServer.java:729) [spigot-1.9.jar:git-Spigot-dd155ed-23ad72b]
        at net.minecraft.server.v1_9_R1.DedicatedServer.D(DedicatedServer.java:400) [spigot-1.9.jar:git-Spigot-dd155ed-23ad72b]
        at net.minecraft.server.v1_9_R1.MinecraftServer.C(MinecraftServer.java:660) [spigot-1.9.jar:git-Spigot-dd155ed-23ad72b]
        at net.minecraft.server.v1_9_R1.MinecraftServer.run(MinecraftServer.java:559) [spigot-1.9.jar:git-Spigot-dd155ed-23ad72b]
        at java.lang.Thread.run(Thread.java:745) [?:1.8.0_74]