How To Fix "ClassNotFoundException"

Hello everyone. I am trying to make my first plugin an am having some issues. The plugin is called "Clans" and is basically a modified fork of FactionsPro, in witch I am modifying to where the "factions" are called "clans" and the main command is "/c" instead of "/f". (I want my first plugin to be simple of course.) However, when I tested the plugin, the server crashed and I got a crash dump. When I submitted the crash dump at http://pmt.mcpe.me/, it gave error code, containing "ClassNotFoundException". So I was wondering if some more experienced plugin developers could please help me with this.

ClassNotFoundException -> (a) Class (has) Not (been) Found -> A class hasn't been found -> Somewhere in your code, you are using an unknown class. -> Send us your code.

The code is here in this ZIP file. I put all of the code files in it.

I seem to have some problems downloading files from this site on mobile, so I can't check it. But remember:
1. Your files must be placed in the src directory according to PSR-0 standards.
2. Check your cases, in case your plugin is run on a case sensitive filesystem.
3. Correct imports?

I checked your plugin.yml, please tell me what is that:

Code:

#...
main: src
#...

I thought it was what was supposed to go there. But I found out it wasn't.
This is my current plugin.yml.

PHP:

name: Clans
author: Edwardthedog2
description: A plugin for giving your server a clans system.
version: 1.0.0
main: Clans\Main
api: [1.12.0]
commands:
  c:
    description: use /c help for all commands
    permission: c.command
permissions:
  f.command:
    default: true
    description: "Allow use of all clan commands"
  f.override:
    default: op
    description: "Allows op users to override clans"

Create a new folder called "Clans" in src folder and move everything in the src folder into the "Clans" folder
in your plugin.yml, change

Code:

main: Clans\Main

to

Code:

main: Clans\ClanMain

Okay, I did that, but now the server crashes when I try to run it saying that the class isn't found.

Make sure you're declaring the right class in your PHP file... BTW, I suggest you learn PHP and the PocketMine API before you start making a plugin like this.

Whats the full error message?

Make your file into a zip, submit it to http://pmt.mcpe.me with all three inspections at the bottom enabled and see the results.

Okay, done. The "Bad Practice" and "Syntax Errors" inspections passed, but the " Classpath" inspection returned an error that says "

• Main class file expected at src/Clans/ClanMain.php but it is not a file"

Error: Class Clans\ClanMain not found

Check if /scr/Clans/ClanMain.php exists!

I just checked. It does exist.

Because it is src, not scr. It means source.
Remember this lesson. You will keep facing conditions like this in the future, like reading "a"s as "u"s.

Okay got it. But I changed that, and it gives me the same error.

Like I said earlier, make sure you have it pointing to the right class.

How it should go:

PluginFoler(folder) -> plugin.yml & src -> Clans\Main.php
And in the plugin.yml file make sure you have it set like:

Code:

main: Clans\Main

Awesome now the plugin doesn't crash the server. However even though it has /c in the help menu when I type "/c" (the plugins main command) it doesn't do anything. Plus this appears in the console when I first start the server.

Code:

[15:30:00] [Server thread/NOTICE]: InvalidArgumentException: "Argument 1 passed to Clans\ClanListener::__construct() must be an instance of Clans\ClanMain, instance of Clans\Main given, called in phar://C:/Users/edwar/Desktop/PocketMine-MP/plugins/ClansBuild19.phar/src/Clans/Main.php on line 49 and defined" (E_RECOVERABLE_ERROR) in "/ClansBuild19.phar/src/Clans/ClanListener" at line 27

Okay, I think I found the problem in my "ClanListener.php" file.