Solved Assistance with plugin.yml errors

Hello! To start this thread off I will inform you all about the problem.

My problem is that my plugin.yml is creating the same error each time after attempting to fix this. I have spellchecked it all and do not see any visual errors. I am a beginner with Java.

Stacktrace:

Code (Text):

[18:26:40 ERROR]: Could not load 'plugins\ServerMix.jar' in folder 'plugins'
org.bukkit.plugin.InvalidDescriptionException: Invalid plugin.yml
    at org.bukkit.plugin.java.JavaPluginLoader.getPluginDescription(JavaPluginLoader.java:160) ~[spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
    at org.bukkit.plugin.SimplePluginManager.loadPlugins(SimplePluginManager.java:138) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
    at org.bukkit.craftbukkit.v1_15_R1.CraftServer.loadPlugins(CraftServer.java:351) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
    at net.minecraft.server.v1_15_R1.DedicatedServer.init(DedicatedServer.java:203) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
    at net.minecraft.server.v1_15_R1.MinecraftServer.run(MinecraftServer.java:784) [spigot-1.15.2.jar:git-Spigot-800b93f-8160e29]
    at java.lang.Thread.run(Unknown Source) [?:1.8.0_231]
Caused by: java.io.FileNotFoundException: Jar does not contain plugin.yml
    ... 6 more
 

Plugin.yml:

Code (Text):

main: me.steveraft.servermix.Main
name: ServerMix
version: 1.0
author: SteveRaft
commands:
  Nick:
 

Image of files in the plugin:

(https://imgur.com/a/BAZcVjE)
(Sorry if this is just another beginner mistake)

If anybody knows the reason, please hint me towards the solution, but don't spoon-feed me, as I want to learn on my own.

 

EDIT: Thank you for the help! I believe this and a few other solutions helped me!