Solved WorldGuard Custom Flag Error

Hi everyone.

I have made custom flags for WorldGuard before with no issues, however now it just seems to error on start up no matter what I do.

I'm using the latest WorldGuard and WGCustomFlags plugins, which are being used on my Build path and also present in the "plugins" folder.

The weird part is that any of my old flags, I can export and they will work fine, any new flags I create just error. So I was wondering if I'm doing something wrong, has anyone come across this error and is there a way for me to fix it?

Here is the error code:

Code:

[11:10:16] [Server thread/ERROR]: Could not load 'plugins\BreadFlags.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: java.lang.NoClassDefFoundError: com/sk89q/worldguard/protection/flags/Flag
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:135) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:329) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:251) [craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugins(CraftServer.java:288) [craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:152) [craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:494) [craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at java.lang.Thread.run(Unknown Source) [?:1.7.0_40]
Caused by: java.lang.NoClassDefFoundError: com/sk89q/worldguard/protection/flags/Flag
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_40]
    at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_40]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    ... 6 more
Caused by: java.lang.ClassNotFoundException: com.sk89q.worldguard.protection.flags.Flag
    at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_40]
    at java.net.URLClassLoader$1.run(Unknown Source) ~[?:1.7.0_40]
    at java.security.AccessController.doPrivileged(Native Method) ~[?:1.7.0_40]
    at java.net.URLClassLoader.findClass(Unknown Source) ~[?:1.7.0_40]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_40]
    at java.lang.ClassLoader.loadClass(Unknown Source) ~[?:1.7.0_40]
    at java.lang.Class.forName0(Native Method) ~[?:1.7.0_40]
    at java.lang.Class.forName(Unknown Source) ~[?:1.7.0_40]
    at org.bukkit.plugin.java.PluginClassLoader.<init>(PluginClassLoader.java:64) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:131) ~[craftbukkit.jar:git-Spigot-b8f6402-a646500]
    ... 6 more

Thanks,
Brad

 

@hellobrad100
Looks like the version of WorldGuard you're using doesn't have the "Flag" class (located at com.sk89q.worldguard.protection.flags.Flag) but, your plugin uses said class casing the ClassNotFoundException.

 

@TGRHavoc
I assumed that at first, however I have used a few different versions and decompiled the version I was using and saw that it did have the class it says it is missing o.o

 

Have you made sure your plugin has depends or softdepends in your plugin.yml for WorldGuard?

Otherwise I think this will happen if Bukkit loads your plugin before it loads WorldGuard.

 

Ye, got both the depends in the plugin.yml for both WorldGuard and WGCustomFlags

I am very very disappointed in myself.

Typeo in the plugin.yml

Instead of putting:

Depend: [WorldGuard, WGCustomFlags]

I put:
Depends: [WorldGuard, WGCustomFlags]

That little "s" has been the trouble maker all this time.

I think I should quit xD

Thanks for your help anyway guys.

EDIT by Moderator: merged posts, please use the edit button instead of double posting.

 

I thought it was "depends" too! Glad you found it