What I have typed wrong???

I got an error while parsing my plugin's plugin.yml. Can you help me?

plugin.yml:

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name: mcGuns
main: org.hihii55.mcGuns.McGuns
version: Alpha 0.1-dev
authors: [hihii55]
description: mcGuns gives you to use modern weapons, like guns, grenades, molotov cocktails, etc. They do not look like guns. Their name plate is the original, but they still are guns. They have different properties. Even sniper is in development.
commands:
mcguns:
description: The main help page of mcGuns
guns:
description: The main help page of mcGuns
gun:
description: The main help page of mcGuns
permissions:
mcguns.*:
description: Gives ALL mcGuns permissions
children:
mcguns.help: true
mcguns.use.*: true
mcguns.admin.*: op
mcguns.info: true
mcguns.owner: false
mcguns.help:
description: Gives access to use the main/help command
mcguns.use.*:
description: Gives access to do default things
children:
mcguns.use.craft.*: true
mcguns.use.shoot.*: true
mcguns.use.holding.*: true
mcguns.admin.*:
description: Gives access to use admin commands/things
children:
mcguns.admin.adminhelp: op
mcguns.admin.inifiteammo: op
mcguns.admin.seize: op
mcguns.admin.givegun.*: op
mcguns.admin.giveammo.*: op
mcguns.use.craft.*:
description: Gives access to player to craft guns
children:
mcguns.use.craft.pistol.*: true
mcguns.use.craft.assaultrifle.*: true
mcguns.use.craft.shotgun.*: true
mcguns.use.craft.sniper.*: true
mcguns.use.shoot.*:
description: Gives access to shoot/throw
children:
mcguns.use.shoot.pistol.*: true
mcguns.use.shoot.assaultrifle.*: true
mcguns.use.shoot.shotgun.*: true
mcguns.use.shoot.sniper.*: true
mcguns.admin.givegun.*:
description: Gives access to make guns from nothing, like /give
children:
mcguns.admin.givegun.pistol.*: op
mcguns.admin.givegun.assaultrifle.*: op
mcguns.admin.givegun.shotgun.*: op
mcguns.admin.givegun.sniper.*: op
mcguns.admin.adminhelp:
description: Gives access to use /mcguns admin-command
mcguns.use.shoot.pistol.*:
children:
mcguns.use.shoot.pistol.deserteagle
mcguns.use.shoot.pistol.m1911
mcguns.use.shoot.pistol.g18
mcguns.admin.givegun.pistol.*:
children:
mcguns.admin.givegun.pistol.deserteagle
mcguns.admin.givegun.pistol.m1911
mcguns.admin.givegun.pistol.g18

you can also read this at pastebin:
http://pastebin.com/LE23qJuK

The errors/server log:

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[SEVERE] Could not load 'plugins/mcGuns.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:203)
at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:132)
at org.bukkit.craftbukkit.CraftServer.loadPlugins(CraftServer.java:207)
at org.bukkit.craftbukkit.CraftServer.<init>(CraftServer.java:183)
at net.minecraft.server.ServerConfigurationManager.<init>(ServerConfigurationManager.java:53)
at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:156)
at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:422)
at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)
Caused by: mapping values are not allowed here
in "<reader>", line 40, column 21:
children:
^

at org.yaml.snakeyaml.scanner.ScannerImpl.fetchValue(ScannerImpl.java:733)
at org.yaml.snakeyaml.scanner.ScannerImpl.fetchMoreTokens(ScannerImpl.java:305)
at org.yaml.snakeyaml.scanner.ScannerImpl.checkToken(ScannerImpl.java:179)
at org.yaml.snakeyaml.parser.ParserImpl$ParseBlockMappingKey.produce(ParserImpl.java:563)
at org.yaml.snakeyaml.parser.ParserImpl.peekEvent(ParserImpl.java:161)
at org.yaml.snakeyaml.parser.ParserImpl.checkEvent(ParserImpl.java:146)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:230)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
at org.yaml.snakeyaml.composer.Composer.composeMappingNode(Composer.java:237)
at org.yaml.snakeyaml.composer.Composer.composeNode(Composer.java:160)
at org.yaml.snakeyaml.composer.Composer.composeDocument(Composer.java:123)
at org.yaml.snakeyaml.composer.Composer.getSingleNode(Composer.java:106)
at org.yaml.snakeyaml.constructor.BaseConstructor.getSingleData(BaseConstructor.java:121)
at org.yaml.snakeyaml.Yaml.loadFromReader(Yaml.java:480)
at org.yaml.snakeyaml.Yaml.load(Yaml.java:411)
at org.bukkit.plugin.PluginDescriptionFile.<init>(PluginDescriptionFile.java:42)
at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:198)
... 7 more

Please! Can you help me?

 

You have too much spacing on one "children" node, if you looked at the line the error said you would've seen it:

Code:

    mcguns.use.craft.*:
        description: Gives access to player to craft guns
        children:
            mcguns.use.craft.pistol.*: true
            mcguns.use.craft.assaultrifle.*: true
            mcguns.use.craft.shotgun.*: true
            mcguns.use.craft.sniper.*: true
    mcguns.use.shoot.*:
        description: Gives access to shoot/throw
            children:
            mcguns.use.shoot.pistol.*: true
            mcguns.use.shoot.assaultrifle.*: true
            mcguns.use.shoot.shotgun.*: true
            mcguns.use.shoot.sniper.*: true
    mcguns.admin.givegun.*:
        description: Gives access to make guns from nothing, like /give
        children:
            mcguns.admin.givegun.pistol.*: op
            mcguns.admin.givegun.assaultrifle.*: op
            mcguns.admin.givegun.shotgun.*: op
            mcguns.admin.givegun.sniper.*: op

Can you see the offset children ?

 

Thanks a lot