1.12 PaperSpigotQuickShop无法使用，其他正常
插件：

报错部分：
[09:37:19] [Server thread/INFO]: [QuickShop] Enabling QuickShop v0.9.29
[09:37:20] [Server thread/ERROR]: Error occurred while enabling QuickShop v0.9.29 (Is it up to date?)
java.lang.UnsupportedClassVersionError: This version of QuickShop is incompatible. Internal version: v1_12_R1
        at org.maxgamer.quickshop.Util.NMS.init(NMS.java:462) ~[?:?]
        at org.maxgamer.quickshop.QuickShop.onEnable(QuickShop.java:131) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:264) ~[patched_1.12.jar:git-Paper-1105]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:316) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:379) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:329) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:438) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:399) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:337) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:276) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:612) [patched_1.12.jar:git-Paper-1105]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_102]
[09:37:20] [Server thread/INFO]: [QuickShop] Disabling QuickShop v0.9.29
[09:37:20] [Server thread/ERROR]: Error occurred while disabling QuickShop v0.9.29 (Is it up to date?)
java.lang.NullPointerException: null
        at org.maxgamer.quickshop.QuickShop.onDisable(QuickShop.java:491) ~[?:?]
        at org.bukkit.plugin.java.JavaPlugin.setEnabled(JavaPlugin.java:266) ~[patched_1.12.jar:git-Paper-1105]
        at org.bukkit.plugin.java.JavaPluginLoader.disablePlugin(JavaPluginLoader.java:344) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.plugin.java.JavaPluginLoader.enablePlugin(JavaPluginLoader.java:320) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.plugin.SimplePluginManager.enablePlugin(SimplePluginManager.java:404) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugin(CraftServer.java:379) [patched_1.12.jar:git-Paper-1105]
        at org.bukkit.craftbukkit.v1_12_R1.CraftServer.enablePlugins(CraftServer.java:329) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.t(MinecraftServer.java:438) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.l(MinecraftServer.java:399) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.a(MinecraftServer.java:337) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.DedicatedServer.init(DedicatedServer.java:276) [patched_1.12.jar:git-Paper-1105]
        at net.minecraft.server.v1_12_R1.MinecraftServer.run(MinecraftServer.java:612) [patched_1.12.jar:git-Paper-1105]
        at java.lang.Thread.run(Unknown Source) [?:1.8.0_102]

你用的quickshop不支持1.11.2
请更新到最新版本

将qc插件升级到最新支持1.11.2的版本即可

看清是1.12，不是1.11.2。不过总算解决了