Error: Call to a member of function on null

Discussion in 'Facepalm' started by ethaniccc, Mar 15, 2020.

  1. ethaniccc

    ethaniccc Baby Zombie

    Messages:
    190
    GitHub:
    ethaniccc
    I don't know how to fix this, so I came here (yes I'm a big noob lol).
    So this is the error:
    Code:
    2020-03-15 [20:25:34] [Server thread/CRITICAL]: Error: "Call to a member function banPlayerCombatHacks() on null" (EXCEPTION) in "plugins/StaffMode/src/ethaniccc/StaffMode/BanMenu" at line 40
    This is my code in BanMenu.php:
    PHP:
    <?php

    namespace ethaniccc\StaffMode;

    use 
    muqsit\invmenu\InvMenu;

    use 
    pocketmine\inventory\transaction\action\SlotChangeAction;
    use 
    pocketmine\item\Item;
    use 
    pocketmine\Player;
    use 
    pocketmine\scheduler\ClosureTask;
    use 
    pocketmine\utils\TextFormat;
    use 
    pocketmine\Server;

    class 
    BanMenu{

        private 
    $plugin;
        
        public function 
    _construct(StaffMode $plugin){
            
    $this->plugin $plugin;
        }
        
        public function 
    openBanMenu(Player $senderPlayer $who) : void{
            
    $menu InvMenu::create(InvMenu::TYPE_DOUBLE_CHEST);
            
    $menu->readonly();
            
    $menu->setName(TextFormat::RED $who->getName() . "'s profile");
            for(
    $i 0$i <= 53; ++$i) {
               
    $menu->getInventory()->setItem($iItem::get(Item::STAINED_GLASS_PANE01)->setCustomName(TextFormat::RESET " "));
               }
            
    $menu->getInventory()->setItem(20Item::get(27601)->setCustomName(TextFormat::BOLD TextFormat::RED "Combat Hacks"));
            
    $menu->setListener(function(Player $playerItem $itemClickedItem $itemClickedWithSlotChangeAction $action) use ($who$menu) : bool{
                switch (
    $itemClicked->getId()) {
                    case 
    Item::DIAMOND_SWORD:
                        
    $player->removeWindow($action->getInventory());
                        
    $this->plugin->banPlayerCombatHacks($who); //line of error
                        
    return false;
                        break;
                }
            });
            
    $menu->send($sender);
        }
    }
    Can anyone help me?
     
  2. HimbeersaftLP

    HimbeersaftLP Fish

    Messages:
    2,401
    GitHub:
    HimbeersaftLP
    That means that $this->plugin is null, there is probably something wrong in the part of your code where you create the BanMenu object. (new Banmenu())
     
  3. ethaniccc

    ethaniccc Baby Zombie

    Messages:
    190
    GitHub:
    ethaniccc
    I fixed it by making it so that instead of my BanMenu class into going back into the main class and using a function from there, I just used the code from the function and put it in there, now it doesn't appear.
     

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