Solved Unexpected "}"

Hello. I am developing a plugin and I am getting this error:

Code:

2019-05-12 [07:38:05] [Server thread/CRITICAL]: ParseError: "syntax error, unexpected '}'" (EXCEPTION) in "plugins/ThruCommand/src/ThruCommand/SJames/Main" at line 22

I don't understand why. I have an if-statement 2 lines above. Any help?
Thanks.

PHP:

<Main file>
<?php

namespace ThruCommand\SJames;

use pocketmine\Sever;
use pocketmine\Player;
use pocketmine\command\Command;
use pocketmine\command\CommandSender;
use pocketmine\plugin\PluginBase;
use pocketmine\level\position;
use pocketmine\Vector3;
use pocketmine\utils\TextFormat as c;

class Main extends PluginBase{
  public function onEnable(){
  }
  public function onCommand(CommandSender $player, Command $cmd, String $label, array $args){
  switch($cmd -> getName()){
    case "thru" ;
      if (!($player instanceof Player)){
        $sender->sendMessage(TextFormat::DARK_RED . "Please run this command in-game.")
      }else{      #line 22
        $distance = 1;
        switch($player->getTargetBlock($distance));
          case "stone"
            $player->sendMessage(TextFormat::GREEN."You are looking at Stone"
     
      }
  return true;
  }
 
  return true;
  }
}

 

PHP:

$sender->sendMessage(TextFormat::DARK_RED . "Please run this command in-game.")

1) missing ;

PHP:

$player->sendMessage(TextFormat::GREEN."You are looking at Stone"

2) missing );
3) missing endswitch;

 

Did you read the error

 

T

Thanks.
And yes I did read it.

 

PHP:

case "thru":

 

that isn't problem try it with ;

 

how? Can I use ; or : on case?

 

yes