InvocationTargetException when attempting to start Forge 1.12.2 server with JDK 8 on Ubuntu 16.04

[NEXUS2345]

I was attempting to setup the server for FTB Revelation but after extracting the files and running the server start script, I was immediately met with this InvocationTargetException:

 

Spoiler

A problem occurred running the Server launcher.java.lang.reflect.InvocationTargetException
        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
        at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:62)
        at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
        at java.lang.reflect.Method.invoke(Method.java:498)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.run(ServerLaunchWrapper.java:62)
        at net.minecraftforge.fml.relauncher.ServerLaunchWrapper.main(ServerLaunchWrapper.java:31)
Caused by: java.lang.NoClassDefFoundError: org/apache/logging/log4j/Level
        at net.minecraft.launchwrapper.Launch.launch(Launch.java:94)
        at net.minecraft.launchwrapper.Launch.main(Launch.java:28)
        ... 6 more
Caused by: java.lang.ClassNotFoundException: org.apache.logging.log4j.Level
        at java.net.URLClassLoader.findClass(URLClassLoader.java:381)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:424)
        at sun.misc.Launcher$AppClassLoader.loadClass(Launcher.java:335)
        at java.lang.ClassLoader.loadClass(ClassLoader.java:357)
        ... 8 more

 

This error is on Ubuntu 16.04 with OpenJDK 8 or Oracle JDK 8 and no log files are produced. I tried replacing the jar file that FTB includes with the 1.12.2 recommended build, and latest, and neither had any effect. I also noted the NoClassDefFoundError was indicative of a missing library, which I checked for and could not find. I redownloaded the libraries using the Forge installer, both jar and exe, to no effect. Any help would be greatly appreciated. 

Edited January 21, 2018 by NEXUS2345

[NEXUS2345]

I said in my message that I used the installer to obtain the libraries and the Forge jar. Also, can I ask how I am meant to use the installer on a system with no GUI?

[NEXUS2345]

I made use of the installer and I am continuing to experience this issue.

[NEXUS2345]

Here is the log:

Spoiler

Installing server to current directory
MESSAGE: Data kindly mirrored by Forge at http://MinecraftForge.net/
MESSAGE: Considering library net.minecraftforge:forge:1.12.2-14.23.1.2600: Not Downloading {Wrong Side}
MESSAGE: Considering library net.minecraft:launchwrapper:1.12
MESSAGE: Downloading library net.minecraft:launchwrapper:1.12
MESSAGE: Trying unpacked library net.minecraft:launchwrapper:1.12
MESSAGE: Considering library org.ow2.asm:asm-all:5.2
MESSAGE: Downloading library org.ow2.asm:asm-all:5.2
MESSAGE: Trying unpacked library org.ow2.asm:asm-all:5.2
MESSAGE: Considering library jline:jline:2.13
MESSAGE: Downloading library jline:jline:2.13
MESSAGE: Trying unpacked library jline:jline:2.13
MESSAGE: Considering library com.typesafe.akka:akka-actor_2.11:2.3.3
MESSAGE: Downloading library com.typesafe.akka:akka-actor_2.11:2.3.3
MESSAGE: Unpacking packed file akka-actor_2.11-2.3.3.jar.pack.xz
  Signed
  Checksum Length: 140942
  Total Length:    2606968
  Temp File:       /tmp/art5283963064430078785.pack
MESSAGE: Successfully unpacked packed file akka-actor_2.11-2.3.3.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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
MESSAGE: Downloading library com.typesafe:config:1.2.1
MESSAGE: Unpacking packed file config-1.2.1.jar.pack.xz
  Signed
  Checksum Length: 12246
  Total Length:    111476
  Temp File:       /tmp/art8568074478327579455.pack
MESSAGE: Successfully unpacked packed file config-1.2.1.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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: Downloading library org.scala-lang:scala-actors-migration_2.11:1.1.0
MESSAGE: Unpacking packed file scala-actors-migration_2.11-1.1.0.jar.pack.xz
  Signed
  Checksum Length: 3311
  Total Length:    52481
  Temp File:       /tmp/art9114039472183437185.pack
MESSAGE: Successfully unpacked packed file scala-actors-migration_2.11-1.1.0.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./libraries/org/scala-lang/scala-actors-migration_2.11/1.1.0/scala-actors-migration_2.11-1.1.0.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
MESSAGE: Considering library org.scala-lang:scala-compiler:2.11.1
MESSAGE: Downloading library org.scala-lang:scala-compiler:2.11.1
MESSAGE: Unpacking packed file scala-compiler-2.11.1.jar.pack.xz
  Signed
  Checksum Length: 942120
  Total Length:    9183051
  Temp File:       /tmp/art3110830455875007766.pack
MESSAGE: Successfully unpacked packed file scala-compiler-2.11.1.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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
MESSAGE: Downloading library org.scala-lang.plugins:scala-continuations-library_2.11:1.0.2
MESSAGE: Unpacking packed file scala-continuations-library_2.11-1.0.2.jar.pack.xz
  Signed
  Checksum Length: 2416
  Total Length:    18871
  Temp File:       /tmp/art4988415473961300817.pack
MESSAGE: Successfully unpacked packed file scala-continuations-library_2.11-1.0.2.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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
MESSAGE: Downloading library org.scala-lang.plugins:scala-continuations-plugin_2.11.1:1.0.2
MESSAGE: Unpacking packed file scala-continuations-plugin_2.11.1-1.0.2.jar.pack.xz
  Signed
  Checksum Length: 16815
  Total Length:    139418
  Temp File:       /tmp/art3746303877942266017.pack
MESSAGE: Successfully unpacked packed file scala-continuations-plugin_2.11.1-1.0.2.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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
MESSAGE: Downloading library org.scala-lang:scala-library:2.11.1
MESSAGE: Unpacking packed file scala-library-2.11.1.jar.pack.xz
  Signed
  Checksum Length: 341368
  Total Length:    5984083
  Temp File:       /tmp/art9214146451098790856.pack
MESSAGE: Successfully unpacked packed file scala-library-2.11.1.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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
MESSAGE: Downloading library org.scala-lang:scala-parser-combinators_2.11:1.0.1
MESSAGE: Unpacking packed file scala-parser-combinators_2.11-1.0.1.jar.pack.xz
  Signed
  Checksum Length: 37614
  Total Length:    273457
  Temp File:       /tmp/art6243861527723628466.pack
MESSAGE: Successfully unpacked packed file scala-parser-combinators_2.11-1.0.1.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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: Downloading library org.scala-lang:scala-reflect:2.11.1
MESSAGE: Unpacking packed file scala-reflect-2.11.1.jar.pack.xz
  Signed
  Checksum Length: 291610
  Total Length:    3217021
  Temp File:       /tmp/art59934633715443851.pack
MESSAGE: Successfully unpacked packed file scala-reflect-2.11.1.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./libraries/org/scala-lang/scala-reflect/2.11.1/scala-reflect-2.11.1.jar" internal checksums
    checksums.sha1 validated successfully
    Jar contents validated successfully
MESSAGE: Considering library org.scala-lang:scala-swing_2.11:1.0.1
MESSAGE: Downloading library org.scala-lang:scala-swing_2.11:1.0.1
MESSAGE: Unpacking packed file scala-swing_2.11-1.0.1.jar.pack.xz
  Signed
  Checksum Length: 39019
  Total Length:    888907
  Temp File:       /tmp/art4029456064248222542.pack
MESSAGE: Successfully unpacked packed file scala-swing_2.11-1.0.1.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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
MESSAGE: Downloading library org.scala-lang:scala-xml_2.11:1.0.2
MESSAGE: Unpacking packed file scala-xml_2.11-1.0.2.jar.pack.xz
  Signed
  Checksum Length: 35380
  Total Length:    739509
  Temp File:       /tmp/art8250767668586541250.pack
MESSAGE: Successfully unpacked packed file scala-xml_2.11-1.0.2.jar.pack.xz
Checking "/home/jgregory201718/revelations-server/./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: Downloading library lzma:lzma:0.0.1
MESSAGE: Trying unpacked library lzma:lzma:0.0.1
MESSAGE: Considering library net.sf.jopt-simple:jopt-simple:5.0.3
MESSAGE: Downloading library net.sf.jopt-simple:jopt-simple:5.0.3
MESSAGE: Trying unpacked library net.sf.jopt-simple:jopt-simple:5.0.3
MESSAGE: Considering library java3d:vecmath:1.5.2
MESSAGE: Downloading library java3d:vecmath:1.5.2
MESSAGE: Trying unpacked library java3d:vecmath:1.5.2
MESSAGE: Considering library net.sf.trove4j:trove4j:3.0.3
MESSAGE: Downloading library net.sf.trove4j:trove4j:3.0.3
MESSAGE: Trying unpacked library net.sf.trove4j:trove4j:3.0.3
MESSAGE: Considering library net.minecraftforge:MercuriusUpdater:1.12.2
MESSAGE: Downloading library net.minecraftforge:MercuriusUpdater:1.12.2
MESSAGE: Trying unpacked 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-1.12.2-14.23.1.2600-universal.jar
You can delete this installer file now if you wish

 

 

 

[NEXUS2345]

I used both the standard start script that FTB include and the following:

java -server -Xms2048M -Xmx8192M -jar [forge jar] -nogui

[LexManos]

Show us exactly how you're running the server. You're most likely not running it in the proper working directory.

the [forge jar] part should have NO directory paths. The only way this can happen is if it can not find the 'minecraft_server.1.12.2.jar' in the current working directory.

[NEXUS2345]

Hi Lex, here is a screenshot of the file structure in my SFTP client:

Spoiler

 

 

[LexManos]

That is not what I asked for -.-

Speak with your server host and have them walk you through it.