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Update: I tried Oracle JDK with the same results. Thanks for the suggestion though! I re-downloaded everything from scratch, this time using the latest suggested, which is now 1.12.2-14.23.1.2555. This combo works. I'm not sure if its an updated forge version or a bodged download of the other versions. I just remembered, I had manually downloaded the 1.12.2 server file before I got forge. I wanted to check that a vanilla server was working before I went to get the forge stuff. Today, I let the forge installer download the minecraft server jar. Maybe they are different? I may have made the basic mistake of not letting the forge installer do ALL the work. In any case I seem to up and operating. Thanks for all the help!

ok. Any other ideas to proceed? I'm not sure where to go next. Is there additional debug logging I can turn on that might help?

Here ya go. https://pastebin.com/uB08PVCD thanks again.

oops, sorry Will a ls -lR of the libraries directory be sufficient? I'm away from the server for the next few hours. Will post this later today. thanks for the help!

Installing server to current directory MESSAGE: Data kindly mirrored by Forge at http://MinecraftForge.net/ MESSAGE: Considering library net.minecraftforge:forge:1.12.2-14.23.0.2552: Not Downloading {Wrong Side} MESSAGE: Considering library net.minecraft:launchwrapper:1.12 MESSAGE: Considering library org.ow2.asm:asm-all:5.2 MESSAGE: Considering library jline:jline:2.13 MESSAGE: Considering library com.typesafe.akka:akka-actor_2.11:2.3.3 Checking "/opt/msm/servers/D-world3/./libraries/com/typesafe/akka/akka-actor_2.11/2.3.3/akka-actor_2.11-2.3.3.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library com.typesafe:config:1.2.1 Checking "/opt/msm/servers/D-world3/./libraries/com/typesafe/config/1.2.1/config-1.2.1.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang:scala-actors-migration_2.11:1.1.0 MESSAGE: Considering library org.scala-lang:scala-compiler:2.11.1 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/scala-compiler/2.11.1/scala-compiler-2.11.1.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang.plugins:scala-continuations-library_2.11:1.0.2 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/plugins/scala-continuations-library_2.11/1.0.2/scala-continuations-library_2.11-1.0.2.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang.plugins:scala-continuations-plugin_2.11.1:1.0.2 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/plugins/scala-continuations-plugin_2.11.1/1.0.2/scala-continuations-plugin_2.11.1-1.0.2.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang:scala-library:2.11.1 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/scala-library/2.11.1/scala-library-2.11.1.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang:scala-parser-combinators_2.11:1.0.1 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/scala-parser-combinators_2.11/1.0.1/scala-parser-combinators_2.11-1.0.1.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang:scala-reflect:2.11.1 MESSAGE: Considering library org.scala-lang:scala-swing_2.11:1.0.1 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/scala-swing_2.11/1.0.1/scala-swing_2.11-1.0.1.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library org.scala-lang:scala-xml_2.11:1.0.2 Checking "/opt/msm/servers/D-world3/./libraries/org/scala-lang/scala-xml_2.11/1.0.2/scala-xml_2.11-1.0.2.jar" internal checksums checksums.sha1 validated successfully Jar contents validated successfully MESSAGE: Considering library lzma:lzma:0.0.1 MESSAGE: Considering library net.sf.jopt-simple:jopt-simple:5.0.3 MESSAGE: Considering library java3d:vecmath:1.5.2 MESSAGE: Considering library net.sf.trove4j:trove4j:3.0.3 MESSAGE: Considering library net.minecraftforge:MercuriusUpdater:1.12.2 Saving optional modlist to: ./mods/mod_list.json The server installed successfully, you should now be able to run the file forge-1.12.2-14.23.0.2552-universal.jar You can delete this installer file now if you wish

Installed using the installer. Command line was Java -jar forge-xxx-installer.jar -installServer install log looks clean. Is there a direct link to manually download the libraries? Maybe if I install the by hand? Manifest list for the libraries so I can check that everything is there? thanks.

Hi All, I've been trying to get a 1.12.2 forge server up and running on my local ARCH linux box. I have successfully brought up vanilla, forge+mods, and heavily modded servers on this machine with out issues. 1.10.x, 1.11.x and others. This is my first of the 1.12 series. I can bring up the vanilla 1.12.2 sever without issue. The forge server always crashes out with a log similar to the attached. I've tried both the latest and recommended forge versions. Same error. Any help will be appreciated. https://pastebin.com/2gUfi15e