코드입니다.

[01:31:39] [Server thread/ERROR]: Could not load 'plugins\my_sertest.jar' in folder 'plugins'

org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml

        at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:170) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]

        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:144) ~[spigot-api-1.20.4-R0.1-SNAPSHOT.jar:?]

        at org.bukkit.craftbukkit.v1_20_R3.CraftServer.loadPlugins(CraftServer.java:428) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4026-Spigot-c198da2-292ec79]

        at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:219) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4026-Spigot-c198da2-292ec79]

        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:1000) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4026-Spigot-c198da2-292ec79]

        at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:304) ~[spigot-1.20.4-R0.1-SNAPSHOT.jar:4026-Spigot-c198da2-292ec79]

        at java.lang.Thread.run(Thread.java:842) ~[?:?]

Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml

거의 반나절 이상 동안 붙잡아서 왠만한건 다 해본것 같습니다

플러그인 처음 해보아서 여기에 도움이 될까 올려봅니다

minecraft_plugin말고 welcome_plugin으로 작업했습니다 

도와주셔서 감사합니다