I need help installing forestry

[f.l.a.s.h.m.a.n]

i need help installing forestry 1.8.6 on my tekkit 3.1.1 server, i would really appreaciate it, if someone could help me, if i wanna install it i always get the following error log:

2012-07-27 21:29:30 [iNFO] http://www.mod-buildcraft.com

2012-07-27 21:29:30 [FINER] Initializing mod_BuildCraftFactory

2012-07-27 21:29:30 [FINER] Initializing mod_Forestry

2012-07-27 21:29:31 [FINER] Forestry: Using the latest version for Minecraft 1.2.5

2012-07-27 21:29:31 [FINER] Breeding mode for bees set to NORMAL

2012-07-27 21:29:31 [FINE] Found plugin for TerraFirmaCraft

2012-07-27 21:29:31 [FINE] Found plugin for Native Arboriculture

2012-07-27 21:29:31 [FINE] Found plugin for TwilightForest

2012-07-27 21:29:31 [FINE] Found plugin for EquivalentExchange

2012-07-27 21:29:31 [FINE] Found plugin for BuildCraft 2

2012-07-27 21:29:31 [FINE] Found plugin for Core

2012-07-27 21:29:31 [FINE] Found plugin for Native Energy

2012-07-27 21:29:31 [FINE] Found plugin for Native Factory

2012-07-27 21:29:31 [FINE] Found plugin for Native Food

2012-07-27 21:29:31 [FINE] Found plugin for Native Storage

2012-07-27 21:29:31 [FINE] Found plugin for IndustrialCraft2

2012-07-27 21:29:31 [FINE] Found plugin for Native Apiculture

2012-07-27 21:29:31 [FINE] Found plugin for Native Mail

2012-07-27 21:29:31 [FINE] Found plugin for Native Cultivation

2012-07-27 21:29:32 [FINE] Skipped plugin class forestry.plugins.PluginTFCraft because preconditions were not met.

2012-07-27 21:29:32 [FINE] Skipped plugin class forestry.plugins.PluginForestryArboriculture because preconditions were not met.

2012-07-27 21:29:32 [FINE] Skipped plugin class forestry.plugins.PluginTwilightForest because preconditions were not met.

2012-07-27 21:29:32 [FINER] Railcraft IC2 Module: Tin detected, adding Energy Detector recipe: id={0}

2012-07-27 21:29:32 [FINER] Railcraft Core Module: Bronze detected, adding alternative minecart recipe: {0}, id={1}

2012-07-27 21:29:32 [FINER] Railcraft Factory Module: Bronze detected, adding alternative recipes: {0}, id={1}

2012-07-27 21:29:32 [sEVERE] java.lang.NoSuchFieldError: stump

2012-07-27 21:29:32 [sEVERE] at forestry.plugins.PluginForestryApiculture.preInit(PluginForestryApiculture.java:121)

2012-07-27 21:29:32 [sEVERE] at forestry.core.ForestryCore.load(ForestryCore.java:58)

2012-07-27 21:29:32 [sEVERE] at forestry.core.ForestryServer.load(ForestryServer.java:24)

2012-07-27 21:29:32 [sEVERE] at forestry.mod_Forestry.load(mod_Forestry.java:16)

2012-07-27 21:29:32 [sEVERE] at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:351)

2012-07-27 21:29:32 [sEVERE] at cpw.mods.fml.common.Loader.modInit(Loader.java:263)

2012-07-27 21:29:32 [sEVERE] at cpw.mods.fml.common.Loader.initializeMods(Loader.java:618)

2012-07-27 21:29:32 [sEVERE] at cpw.mods.fml.server.FMLBukkitHandler.onLoadComplete(FMLBukkitHandler.java:142)

2012-07-27 21:29:32 [sEVERE] at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:176)

2012-07-27 21:29:32 [sEVERE] at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

2012-07-27 21:29:32 [sEVERE] at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

2012-07-27 21:29:32 [sEVERE] Unexpected exception

java.lang.NoSuchFieldError: stump

at forestry.plugins.PluginForestryApiculture.preInit(PluginForestryApiculture.java:121)

at forestry.core.ForestryCore.load(ForestryCore.java:58)

at forestry.core.ForestryServer.load(ForestryServer.java:24)

at forestry.mod_Forestry.load(mod_Forestry.java:16)

at cpw.mods.fml.common.modloader.ModLoaderModContainer.init(ModLoaderModContainer.java:351)

at cpw.mods.fml.common.Loader.modInit(Loader.java:263)

at cpw.mods.fml.common.Loader.initializeMods(Loader.java:618)

at cpw.mods.fml.server.FMLBukkitHandler.onLoadComplete(FMLBukkitHandler.java:142)

at net.minecraft.server.MinecraftServer.init(MinecraftServer.java:176)

at net.minecraft.server.MinecraftServer.run(MinecraftServer.java:438)

at net.minecraft.server.ThreadServerApplication.run(SourceFile:492)

[The_DarthMoogle]

NoSuchFieldError...

How many times have you tried installing on your server?

[f.l.a.s.h.m.a.n]

5 times at least

[f.l.a.s.h.m.a.n]

pls, any1 help me :(

[The_DarthMoogle]

Yes, well there's your problem.

To save effort on both ends, just use a fresh install,

and follow any of the millions of tutorials available.

Also bear in mind that all of the players on your server will need to do the same.

[Aragaith]

this is an issue with EE2 and forestry, which is said on the forestry wiki how to fix. EE2 has an outdated forestry API in it, you need to open it's jar/zip and delete the forestry folder.

http://forestry.sengir.net/wiki/index.php?n=Main.Downloads

"If you are using mods incorporating the Forestry API (like ExtraBiomesXL and EE2): Remove the forestry/-Folder from their jars/zips to fix API clashes ("java.lang.NoSuchFieldError: stump")."

[Zioniz1]

Issue solved

[f.l.a.s.h.m.a.n]

Thank you! that helped me a lot :)