JAVA: Spigot, Unsupported API version 1.20.1-R0.1-SNAPSHOT.

[HydrogenOS]

I am running a spigot server as a Dev server on windows and I have made a plugin but when I run it I will start the server but not the plugin with the error codes blow:

[13:55:14] [Server thread/ERROR]: Could not load 'plugins\ALand-1.1-INDEV.jar' in folder 'plugins'
org.bukkit.plugin.InvalidPluginException: Unsupported API version 1.20.1-R0.1-SNAPSHOT
        at org.bukkit.craftbukkit.v1_20_R1.util.CraftMagicNumbers.checkSupported(CraftMagicNumbers.java:317) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3914-Spigot-d2eba2c-2fa7644]
        at org.bukkit.plugin.java.JavaPluginLoader.loadPlugin(JavaPluginLoader.java:141) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.plugin.SimplePluginManager.loadPlugin(SimplePluginManager.java:394) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:301) ~[spigot-api-1.20.1-R0.1-SNAPSHOT.jar:?]
        at org.bukkit.craftbukkit.v1_20_R1.CraftServer.loadPlugins(CraftServer.java:435) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3914-Spigot-d2eba2c-2fa7644]
        at net.minecraft.server.dedicated.DedicatedServer.e(DedicatedServer.java:219) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3914-Spigot-d2eba2c-2fa7644]
        at net.minecraft.server.MinecraftServer.w(MinecraftServer.java:972) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3914-Spigot-d2eba2c-2fa7644]
        at net.minecraft.server.MinecraftServer.lambda$0(MinecraftServer.java:303) ~[spigot-1.20.1-R0.1-SNAPSHOT.jar:3914-Spigot-d2eba2c-2fa7644]
        at java.lang.Thread.run(Thread.java:1583) ~[?:?]

 

[HydrogenOS]

I got it working now

You aren't suppost to use the of the spiggot api version it tells you instead you are suppost to use the first to numbers of the Minecraft version (in my case 1.20)