I can't destroy blocks on my multiplayer server.

[Maqtiah]

The title says it all and here is some notes:

I am using BUKKIT - 1.5_02
I have made myself an op.

Here is the list of my settings:

#Minecraft server properties
#Tue Apr 26 19:40:49 CEST 2011
level-name=B&M - Fair play
hellworld=false
spawn-monsters=true
online-mode=true
spawn-animals=true
max-players=2
server-ip=
pvp=false
level-seed=
server-port=25565
allow-flight=true
white-list=false
spawn-protection=0

HELP!

[highlight](User was banned for this post ("on't make threads when you're having issues with Minecraft. Use Google or the support megathread." - Orkel))[/highlight]

[phuw]

Is the blocks you're trying to break at the spawn?

[Maqtiah]

not really it's... like 50 blocks away.

[JoeMB]

Have you got any clientside mods installed?

[Fisk]

Are you using plugins?
Perhaps the Permissions plugin?

If so you need to make yourself admin in the permissions settings and set allow building to true for default users and have the file the same name as your world.

My file anyhow:

# System is no longer used, but may become used in the future
# Copies is for multiple-world support
#   Put the name of the world you wish for it to be a clone of, otherwise leave it empty.
#   Does not work for the default world.
#  Example: copies: Derp    -  This will clone the permissions of the world Derp
plugin:
    permissions:
        system: default
        copies:

# Groups can contain inheritance.
#   To make a group inherit the permissions from another
#   group simply place the groups name in the "inheritance:" like so:
#
#   Example:
#       inheritance:
#           - Default
##
#   All permissions including the asterisks must be placed in single quotes.
#   like so:
#
#       - 'general.spawn'
#
#   Otherwise errors will happen!
##
#   Globalized Permission settings:
#
#       If a permission contains periods (.) you can denote a globalized parameter:
#
#           - 'general.*'
#
#       This will allow you to use all general commands.
#
##
#   Single Asterisk denotes all commands:
#
#       - '*'
##
#   To exempt a node use the - prefix like so:
#       - '-general.time'
##
groups:
    Default:
        default: true
        info:
            prefix: ''
            suffix: ''
               build: true [Building for regular people]
        inheritance:
        permissions:
               - 'myhome.home.basic.*'
            - 'myhome.home.soc.*'
            - 'DeathChest.use'
            - 'DeathChest.freeSign'
            - '-DeathChest.allowQuickLoot'    [My plugins for users]
    Moderator:
        default: false
        info:
            prefix: ''
            suffix: ''
            build: true
        inheritance:
            - Default
        permissions:
            - 'bar.foo'
    Admins:
        default: false
        info:
            prefix: ''
            suffix: ''
            build: true
        inheritance:
        permissions:
            - '*'

##
# Users denote which users are included in which group.
# TheNo1Yeti is in the Admin group
# Herpina is a member of the Default group but also has access
# to the herp.derp permissions
# Derpina is a member of the admin group but does not have access
# to the derp.derp permission node
##
   users:
    fisk02:
        group: Admins
        permissions:     [admin gives you access to everything permissions related]

At least thats what happend to me.

[gokuman4594]

Are you the host of the server? Also, you may have spawn protection on.

[kevinseven]

Can you open doors and kill mobs? If not you might have a sync error, I fixed it by reinstalling Minecraft.

[Raptor]

Pretty sure its just spawn protection. Its like 33x33 or something

[Fisk]

Ops can build and destroy blocks in spawn protection area guys and he said he had made himself Op.

[TaintedTurnip]

Have you installed Essentials from here?: [url]http://earth2me.net:8001/artifactory/repo/Essentials.zip[/url]

If at the time of reading this post, a new essentials has been released, download that one instead, for now, this is version 2.2, that works with the latest Bukkit.

When you run your server with the Essentials installed, there should now be an Essentials folder in the plugins folder of your server, open it with Notepad (or other editing software). In the file you should see a line which reads:

spawn-protection: true

This needs to now be changed to:

spawn-protection: false

This will override the default (crappy) spawn protection, but any other third party spawn protection mods will not be overridden.

[escher]

Dude you have to [i]hold[/i] left click

[Eeshton]

Reinstall minecraft. Happened to me too.

[Cyril Connolly]

Hope this works out for you.

[343N]

For me, single player commands had made this problem occur, simply removing it (a.k.a deleting %appdata%\.minecraft\bin folder) fixed it.