cheese_the_acid

This problem probably lays with your friend hosting the forge server. Here are some steps for you friend: Step 1: Open Command Prompt, and type ipconfig, they need to copy the address next to the title IPV4 Address Step 2: Open the server preferences file found in the forge sever folder, paste the IP address next to the sever ip= title Step 3: Make sure you have port forwarding on, the port needs to be 25556, this needs to be forwarded to your PC, ie, the device with the IP Address found in step 1. Step 4: You should now be able to connect to the sever via your forge client on the minecraft launcher, the ip address for the server will be the one found in step 1 Once your friend has done those step and verified that they can connect to there own server, you need to do the following: Step 1: Click edit on the server you have already made Step 2: Ask your friend to type in to google "what's my IPV4" this will give you their public IPV4 Address. (Note this will be different to the IP address gained from the ipconfig command as that provides your friend with there private ipv4 address) Step 3: Once you have this, enter it in to the Server Ip Box followed by ":25565". The sever ip box on your screen should now look something like this "88.71.45.1:25565" Step 4: Click connect and it should work, assuming your friend has the server running.

SOLUTION: Prerequisite/Current Machine State: Forge Server 12.2.2-14.23.5.2768-universal macOS Mojave, Version 10.14.4 IMPORTANT, you must have a working server first, this is just a method for allocating more RAM to the pre-existing working server. Step 1: Open TextEdit, click Format -> Make Plain Text Step 2: Copy and paste this code in to the text file: #!/bin/bash export JAVA_HOME=$(/usr/libexec/java_home -v 1.8) cd "$(dirname "$0")" exec Java -Xms16G -Xmx16G -jar forge-1.12.2-14.23.5.2768-universal.jar Step 3: Replace "forge-1.12.2-14.23.5.2768-universal" , with the name of the file that you use to open your server normally. Step 4: Now replace the "16" in "-Xms16G" "-Xmx16G" with the number of GB of RAM you would like to use. So if you want a server that uses 4GB of RAM you would use the following "-Xms4G -Xmx4G". Step 5: Click File -> Save, replace "untitled" with "Start_Server.sh", then select to save the file in to the folder which has the server file in, this folder will also contain the eula.txt, server.properties and minecraft_server.1.12.2.jar. Step 6: Open Terminal from the launchpad Step 7: Drag and drop the file you just saved in to the terminal window, this should display a message like this "/User/dan/Documents/Start_Server.sh". Everything before "/Start_Server.sh" will probably be different to this example, this is not a problem as it just defines where the "Start_Server.sh" file is located on your machine. The server should now start up, with the allocated RAM. Note, do not close either the terminal or the Minecraft Server windows, type the word stop to close the server, then you can close the windows. -------------------------------------------------------------------------- Troubleshooting: If you are still getting this error code: A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) atnet.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)Caused by: java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 6 more - Type this command in to the terminal window: java -version - The output may look like this: java version "11.0.2" 2019-01-15 LTS Java(TM) SE Runtime Environment 18.9 (build 11.0.2+9-LTS) Java HotSpot(TM) 64-Bit Server VM 18.9 (build 11.0.2+9-LTS, mixed mode) -If it doesn't contain java version "1.8.0_211", issue this command: export JAVA_HOME=$(/usr/libexec/java_home -v 1.8) -Now issue the "java -version" command again and the result should look like this: java version "1.8.0_211" Java(TM) SE Runtime Environment (build 1.8.0_211-b12) Java HotSpot(TM) 64-Bit Server VM (build 25.211-b12, mixed mode) Once you have seen the message above on you terminal window, perform step 7 again. Hope this helps :)

Currently running Java 8 update 211, still getting the same problem as before unfortunately. The error code has changed slightly tho : A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) at java.base/java.lang.reflect.Method.invoke(Method.java:566) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34) Caused by: java.lang.ClassCastException: class jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to class java.net.URLClassLoader (jdk.internal.loader.ClassLoaders$AppClassLoader and java.net.URLClassLoader are in module java.base of loader 'bootstrap') at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 6 more Thanks

Is it as simple as just removing anything but Java 8? Does the script stay the same? Thanks

Hi, Forge server 12.2 Mac OS I currently have a forge server up and running with mods on my MAC. Everything is working fine a but it is quite laggy. When I lunch my forge server.jar file seems to default to only using 1GB RAM. I tried to follow the same principle of changing the allocation in windows, however the Mac equivalent doesn't seem to work. This is the script file I used to call the the forge sever file: #!/bin/bash cd "$(dirname "$0")" exec java -Xms1G -Xmx1G -jar forgeserver.jar nogui That returns this error: A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException  at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(Unknown Source) at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(Unknown Source) at java.base/java.lang.reflect.Method.invoke(Unknown Source) at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) atnet.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34)Caused by: java.lang.ClassCastException: java.base/jdk.internal.loader.ClassLoaders$AppClassLoader cannot be cast to java.base/java.net.URLClassLoader at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) at net.minecraft.launchwrapper.Launch.main(Launch.java:28) ... 6 more My troubleshooting: The scrip points to the correct file name All files have sufficient permissions The script is running in the same folder as the forge sever file I can launch the server by clicking on the server file and it works like normal (with the 1GB allocation) I know this is almost certainly a MAC/scripting issue but someone may have had a similar problem. Thanks in advance