Bukkit

the server is currently running on a debian stretch machine with java oracle java version "1.8.0_181" I use spigot version 1.8 install via the buildtools. I did previous tests on another machine in 1.12 and no problem

[22:05:47 INFO]: [LobbyAPI] Enabling LobbyAPI v3.7.71
[22:05:48 ERROR]: Error occurred while enabling LobbyAPI v3.7.71 (Is it up to date?)
java.lang.NoClassDefFoundError: com/google/gson/JsonParser
at me.zombie_striker.lobbyapi.utils.GithubDependDownloader.autoUpdate(GithubDependDownloader.java:51) ~[?:?]
at me.zombie_striker.lobbyapi.Main.onEnable(Main.java:109) ~[?:?]
at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:321) ~[spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:335) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:405) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at org.bukkit.craftbukkit.v1_8_R1.CraftServer.loadPlugin(CraftServer.java:356) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at org.bukkit.craftbukkit.v1_8_R1.CraftServer.enablePlugins(CraftServer.java:316) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at net.minecraft.server.v1_8_R1.MinecraftServer.q(MinecraftServer.java:402) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at net.minecraft.server.v1_8_R1.MinecraftServer.k(MinecraftServer.java:370) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at net.minecraft.server.v1_8_R1.MinecraftServer.a(MinecraftServer.java:325) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at net.minecraft.server.v1_8_R1.DedicatedServer.init(DedicatedServer.java:211) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at net.minecraft.server.v1_8_R1.MinecraftServer.run(MinecraftServer.java:505) [spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at java.lang.Thread.run(Thread.java:748) [?:1.8.0_181]
Caused by: java.lang.ClassNotFoundException: com.google.gson.JsonParser
at java.net.URLClassLoader.findClass(URLClassLoader.java:381) ~[?:1.8.0_181]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:101) ~[spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at org.bukkit.plugin.java.PluginClassLoader.findClass(PluginClassLoader.java:86) ~[spigot-1.8.jar:git-Spigot-550ebace-7019900e]
at java.lang.ClassLoader.loadClass(ClassLoader.java:424) ~[?:1.8.0_181]
at java.lang.ClassLoader.loadClass(ClassLoader.java:357) ~[?:1.8.0_181]
... 13 more

Seems the auto-updater is using a dependancy that 1.8 is missing. This should not affect any other part of LobbyAPI, and can be ignored for now. I'll try to fix this in the next update.

thanks you