I downloaded the StoneBlock modpack and put it into my server. However, I cannot get it working through hosthorde. I have the .jar set up correctly with the libraries folder in the jar folder. Changed the forge.jar to custom_server.jar as expected (and usual). I've ran multiple different modpacks on my hosthorde server over the years and have not had this problem. Here is what the console tells me, it literally takes a second for it to happen. I've tried using the 8Launcher.jar as well, and it gets farther in, but still does not work. Any help is appreciated. 08.10 23:19:03 [Multicraft] Server stopped 08.10 23:19:03 [Multicraft] Received stop command 08.10 23:18:57 [Server] INFO /run.sh: line 38: 29412 Killed /disk2/multicraft/monitor.sh "$PID" "$USER" 08.10 23:18:56 [Server] INFO ... 6 more 08.10 23:18:56 [Server] INFO at net.minecraft.launchwrapper.Launch.main(Launch.java:28) 08.10 23:18:56 [Server] INFO at net.minecraft.launchwrapper.Launch.<init>(Launch.java:34) 08.10 23:18:56 [Server] INFO 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') 08.10 23:18:56 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:34) 08.10 23:18:56 [Server] INFO at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:70) 08.10 23:18:56 [Server] INFO at java.base/java.lang.reflect.Method.invoke(Method.java:566) 08.10 23:18:56 [Server] INFO at java.base/jdk.internal.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43) 08.10 23:18:56 [Server] INFO at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62) 08.10 23:18:56 [Server] INFO at java.base/jdk.internal.reflect.NativeMethodAccessorImpl.invoke0(Native Method) 08.10 23:18:56 [Server] INFO A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException 08.10 23:18:55 [Server] INFO $START 08.10 23:18:55 [Multicraft] Loaded config for "Mod: Custom Server" 08.10 23:18:55 [Multicraft] Starting server! 08.10 23:18:55 [Multicraft] Loading server properties 08.10 23:18:55 [Multicraft] Received start command 08.10 23:18:52 [Multicraft] Loading server properties
So apparently, the server failed to download the /jre8 folder and accompanying files when the 8launcher.jar was installed and ran. I tried to run FTB StoneBlock2 and it pulled these files in. When I noticed that, I went back to the original stoneblock and it works now. So, make sure that the /jre8 folder and files are in your directory as well! They don't go into the /jar folder, they're in the root directory.
