ClassNotFoundException CallbackTask

It can be considered old because callback task was deprecated long ago as @dktapps said .

 

What can I do to fix it?

 

I wouldn't recommend fixing it, but if you switched the callback task to a plugin task and remove all the callable functions.

 

Noob I am. What is a callable function

 

Callable functions are really just functions. They're called with call_user_func and call_user_func_array. The PHP manual has some useful info regarding this: https://secure.php.net/manual/en/language.types.callable.php.

 

I keep getting a

error. I do not know what is going on.

 

You can use this class instead of CallbackTask:

https://github.com/Muirfield/libcommon/blob/master/src/mf/common/PluginCallbackTask.php

 

Libraries GO!

An abstract class is meant to be extended and not constructed directly. These types of classes are holding a set of rules which extending classes must obey. If you know what is an interfaces then it's easier to think about this: you can't create a instance of interface. Don't wait for answers that has been already given, let me google that for you.

an off-topic: lmgtfy is making a real big deal of their existence, they even got stickers.

 

Now I dont know what to do; i'm very confused with all this pluginTask stuff

 

You need to add a construct function to the SAT class.

 

What would I construct?

 

See the parent class PluginTask.php you need to set the owner by making a public variable and constructing to the parent.
https://github.com/pmmp/PocketMine-MP/blob/master/src/pocketmine/scheduler/PluginTask.php

 

Server keeps crashing

 

You forgot to add your onRun() function and create the $this->owner.

 

Now It says that?

 

Wait for me to get home or someone else to help you. If I get the chance I'll write the full code for you this time. Take a look at the error and the API and try to make sense of it.

 

Try this

PHP:

class SAT extends PluginTask {
    public $owner;
    public function __construct(Main $owner) {
        $this->owner = $owner;
    }

    public function onRun($currentTick) {
        //code goes  here
    }
}

 

You need to add
parent::__construct($owner); in your construct function. If you do not know why, learn how the task system in pocketmine works.

 

Oops I completely forgot about that. I typed that while stuffing my face with a burrito aha.