gundershot

Also, the same error about JOpt Simple occurs even with build 982. I've even tried using this launch command: java -cp minecraft_server.1.7.2.jar -jar (forge jar)

Oh, so what should I be naming my minecraft server jar? minecraft_server.1.7.2.jar and minecraft_server.jar don't work.

Alright, just tried that out, unfortunately it still doesn't work I'm assuming you mean the ~/Library/Application Support/minecraft/libraries folder? If I copy and paste that folder into the Forge server folder and choose to merge, when I try launching the universal jar it still says: Exception in thread "main" java.lang.NoClassDefFoundError: joptsimple/OptionSpec at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25) at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12) Caused by: java.lang.ClassNotFoundException: joptsimple.OptionSpec at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 4 more Looking at that it would seem joptsimple/OptionSpec still isn't being installed/detected. Also, I copied the libraries folder after installing Forge client builds 976, 916 and 871. And just in case this info is useful, if I choose to replace, when I try launching the universal jar it says: We appear to be missing one or more essential library files. You will need to add them to your server before FML and Forge will run successfully.java.lang.ClassNotFoundException: net.minecraft.launchwrapper.Launch at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25) at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12)

The Forge jar does not launch. Here are the relevant details: I'm running on OS X "Mavericks" 10.9.1 forge-1.6.4-9.11.1.965 works fine I have tried turning off my firewall I am not using an antivirus I am using forge-1.7.2-10.12.0.976, I have tried forge-1.7.2-10.12.0.975 and it doesn't work either I am installing the server version of Forge into an empty folder I have tried starting from scratch multiple times The messages I get when I use the installer with terminal: Considering minecraft server jar Downloading minecraft server version 1.7.2 Considering library net.minecraftforge:forge:1.7.2-10.12.0.976 Considering library net.minecraft:launchwrapper:1.9 Downloading library net.minecraft:launchwrapper:1.9 java.io.IOException: Server returned HTTP response code: 403 for URL: https://libraries.minecraft.net/net/minecraft/launchwrapper/1.9/launchwrapper-1.9.jar.pack.xz at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1626) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) at cpw.mods.fml.installer.DownloadUtils$URLISSupplier.getInput(DownloadUtils.java:345) at cpw.mods.fml.installer.DownloadUtils$URLISSupplier.getInput(DownloadUtils.java:333) at com.google.common.io.ByteStreams$6.openStream(ByteStreams.java:989) at com.google.common.io.ByteSource.copyTo(ByteSource.java:202) at com.google.common.io.Files.copy(Files.java:382) at cpw.mods.fml.installer.DownloadUtils.downloadFile(DownloadUtils.java:291) at cpw.mods.fml.installer.DownloadUtils.downloadInstalledLibraries(DownloadUtils.java:85) at cpw.mods.fml.installer.ServerInstall.run(ServerInstall.java:55) at cpw.mods.fml.installer.InstallerAction.run(InstallerAction.java:42) at cpw.mods.fml.installer.InstallerPanel.run(InstallerPanel.java:287) at cpw.mods.fml.installer.SimpleInstaller.launchGui(SimpleInstaller.java:132) at cpw.mods.fml.installer.SimpleInstaller.main(SimpleInstaller.java:33) Considering library org.ow2.asm:asm-all:4.1 Downloading library org.ow2.asm:asm-all:4.1 java.io.IOException: Server returned HTTP response code: 403 for URL: https://libraries.minecraft.net/org/ow2/asm/asm-all/4.1/asm-all-4.1.jar.pack.xz at sun.net.www.protocol.http.HttpURLConnection.getInputStream(HttpURLConnection.java:1626) at sun.net.www.protocol.https.HttpsURLConnectionImpl.getInputStream(HttpsURLConnectionImpl.java:254) at cpw.mods.fml.installer.DownloadUtils$URLISSupplier.getInput(DownloadUtils.java:345) at cpw.mods.fml.installer.DownloadUtils$URLISSupplier.getInput(DownloadUtils.java:333) at com.google.common.io.ByteStreams$6.openStream(ByteStreams.java:989) at com.google.common.io.ByteSource.copyTo(ByteSource.java:202) at com.google.common.io.Files.copy(Files.java:382) at cpw.mods.fml.installer.DownloadUtils.downloadFile(DownloadUtils.java:291) at cpw.mods.fml.installer.DownloadUtils.downloadInstalledLibraries(DownloadUtils.java:85) at cpw.mods.fml.installer.ServerInstall.run(ServerInstall.java:55) at cpw.mods.fml.installer.InstallerAction.run(InstallerAction.java:42) at cpw.mods.fml.installer.InstallerPanel.run(InstallerPanel.java:287) at cpw.mods.fml.installer.SimpleInstaller.launchGui(SimpleInstaller.java:132) at cpw.mods.fml.installer.SimpleInstaller.main(SimpleInstaller.java:33) Considering library org.scala-lang:scala-library:2.10.2 Downloading library org.scala-lang:scala-library:2.10.2 Unpacking packed file scala-library-2.10.2.jar.pack.xz Successfully unpacked packed file scala-library-2.10.2.jar.pack.xz Checking "/Users/Derrick/Documents/test/libraries/org/scala-lang/scala-library/2.10.2/scala-library-2.10.2.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully Considering library org.scala-lang:scala-compiler:2.10.2 Downloading library org.scala-lang:scala-compiler:2.10.2 Unpacking packed file scala-compiler-2.10.2.jar.pack.xz Successfully unpacked packed file scala-compiler-2.10.2.jar.pack.xz Checking "/Users/Derrick/Documents/test/libraries/org/scala-lang/scala-compiler/2.10.2/scala-compiler-2.10.2.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully Considering library java3d:vecmath:1.3.1 Considering library net.sf.trove4j:trove4j:3.0.3 Considering library com.ibm.icu:icu4j-core-mojang:51.2 Considering library net.sf.jopt-simple:jopt-simple:4.5 Considering library lzma:lzma:0.0.1 Considering library com.paulscode:codecjorbis:20101023 Considering library com.paulscode:codecwav:20101023 Considering library com.paulscode:libraryjavasound:20101123 Considering library com.paulscode:librarylwjglopenal:20100824 Considering library com.paulscode:soundsystem:20120107 Considering library io.netty:netty-all:4.0.10.Final Considering library com.google.guava:guava:15.0 Considering library org.apache.commons:commons-lang3:3.1 Considering library commons-io:commons-io:2.4 Considering library net.java.jinput:jinput:2.0.5 Considering library net.java.jutils:jutils:1.0.0 Considering library com.google.code.gson:gson:2.2.4 Considering library com.mojang:authlib:1.3 Considering library org.apache.logging.log4j:log4j-api:2.0-beta9 Considering library org.apache.logging.log4j:log4j-core:2.0-beta9 Considering library org.lwjgl.lwjgl:lwjgl:2.9.0 Considering library org.lwjgl.lwjgl:lwjgl_util:2.9.0 Considering library org.lwjgl.lwjgl:lwjgl-platform:2.9.0 Considering library org.lwjgl.lwjgl:lwjgl:2.9.1-nightly-20131017 Considering library org.lwjgl.lwjgl:lwjgl_util:2.9.1-nightly-20131017 Considering library org.lwjgl.lwjgl:lwjgl-platform:2.9.1-nightly-20131017 Considering library net.java.jinput:jinput-platform:2.0.5 The server start script I'm using: #!/bin/bash cd "$(dirname "$0")" exec java -Xmx1G -Xms1G -jar forge-1.7.2-10.12.0.976-universal.jar The messages I get when trying to launch the universal jar file, after running the minecraft server jar once: Exception in thread "main" java.lang.NoClassDefFoundError: joptsimple/OptionSpec at java.lang.Class.forName0(Native Method) at java.lang.Class.forName(Class.java:270) at cpw.mods.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:25) at cpw.mods.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:12) Caused by: java.lang.ClassNotFoundException: joptsimple.OptionSpec at java.net.URLClassLoader$1.run(URLClassLoader.java:366) at java.net.URLClassLoader$1.run(URLClassLoader.java:355) at java.security.AccessController.doPrivileged(Native Method) at java.net.URLClassLoader.findClass(URLClassLoader.java:354) at java.lang.ClassLoader.loadClass(ClassLoader.java:425) at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:308) at java.lang.ClassLoader.loadClass(ClassLoader.java:358) ... 4 more Looking at the error messages it would appear that: 1) https://libraries.minecraft.net/net/minecraft/launchwrapper/1.9/launchwrapper-1.9.jar.pack.xz and https://libraries.minecraft.net/org/ow2/asm/asm-all/4.1/asm-all-4.1.jar.pack.xz just give 403 errors 2) joptsimple/OptionSpec isn't being installed/detected