Minecraft Forums

Try setting the minimum RAM parameter to -Xmn1G, because that's the initial amount of RAM, not the minimum like many think.

No problem.

Did you enable/disable them in the server.properties?

Well with Realms it's impossible I'm afraid. I highly doubt there is anything you can use to change your username on one server without fully changing it on Mojang.

Well a few things you can check are:
1. You have enough space on your server (always good to check)

2. Try and see if the issue occurs without any plugins installed

3. Update to the latest available version of Spigot for your Minecraft version

Well, not much to go on here.

2016-12-05 20:06:46 [SEVERE] [ForgeModLoader] Unable to launch
java.util.ConcurrentModificationException
at java.util.ArrayList$Itr.checkForComodification(Unknown Source)
at java.util.ArrayList$Itr.remove(Unknown Source)
at net.minecraft.launchwrapper.Launch.launch(Launch.java:114)
at net.minecraft.launchwrapper.Launch.main(Launch.java:27)
at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
at sun.reflect.NativeMethodAccessorImpl.invoke(Unknown Source)
at sun.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source)
at java.lang.reflect.Method.invoke(Unknown Source)
at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:48)
at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:17)

This means a mod of some sort caused a crash on loading, but doesn't say which mod. Also, you are running a 32-bit version of Java, you may want to consider moving to a 64-bit version.

Yes, allocating more RAM is probably the best thing to try. Something else, maybe re-installing Java would help.

I have been working on a custom Minecraft launcher in C# for the past month, and today I finally finished most of it. However, when I try to launch vanilla Minecraft 1.10, 1.9, or 1.8, Minecraft opens in a small rectangular view, and then when you maximize it, the main menu buttons are missing. Anyone know a solution for this? Thanks.

EDIT: Though no one replied, I thought I would mention that I figured it out. I forgot to extract the natives for each Minecraft version being launched.

This mod is great, any chance I could include this mod in a public modpack?

Quote from cutriger»

I used your lucky block in my Hydragames.

Hope you like the video

~Void

Quote from AstroNoodles»

Hey dude,

1) Awesome block.

2) I've noticed that your lucky block can use dependencies such as the Rainyville Lucky Chainsaw. (From Spiral LB) Since I was building a lucky block race, do you know what else the block has support for? [The race is in 1.8.9]

Very nice mod, I like the weapons added. One question though...how do you use the scope on the weapons? I couldn't find the key in the "controls" section of the game. Also, when the weapons run out of ammo they make a villager sound. Other than that, great mod, best weapons mod I've seen.

For a custom IP that doesn't reveal your router's IP, I found this thread that might help: https://bukkit.org/threads/say-goodbye-to-1-11-111-111-style-server-ips.3521/

The launcher works with Java 8, but you may need to lower the allocated memory if Java isn't 64-bit. Try that, and let me know if it works or not.

Quote from Timtim17»

[info] Installing to C:\Users\ajenc\Documents\A Nation Divided Against Itself Launcher\instances\A Nation Divided Against Itself\minecraft\mods\OptiFine_1.7.10_HD_U_D3.jar (from b6ac1c7fa3e16de4655cc4c80d52379955d2ee75)...

It looks like it's downloading an old version of the pack, since Optifine is no longer in it. Maybe some sort of error on the server hosting the modpack?

Quote from Timtim17»

I had to use the bundled jre version in order to run the "new" launcher, which comes with JRE 7. I've also tried with Java 8 (which only works with the "legacy" launcher), and the only difference is a warning about an ignored, depricated cmd line parameter.