Setting blocks over a large area

I'm trying to set blocks over a large area using async tasks but I keep getting one error with this.

Code:

[00:49:55] [Asynchronous Worker #0 thread/CRITICAL]: ErrorException: "Uninitialized string offset: 79872" (EXCEPTION) in "src/pocketmine/level/format/SubChunk" at line 106
[00:49:55] [Asynchronous Worker #0 thread/DEBUG]: #0 src/pocketmine/level/format/SubChunk(106): pocketmine\utils\Utils::errorExceptionHandler(integer 8, string Uninitialized string offset: 79872, string phar:///home/servers/tests/PocketMine-MP.phar/src/pocketmine/level/format/SubChunk.php, integer 106, array Array())
[00:49:55] [Asynchronous Worker #0 thread/DEBUG]: #1 src/pocketmine/level/format/Chunk(201): pocketmine\level\format\SubChunk->setBlock(integer 312, integer 0, integer 0, integer 169, NULL )
[00:49:55] [Asynchronous Worker #0 thread/DEBUG]: #2 plugins/HCFCore/src/hcf/road/task/BuildRoadTask(54): pocketmine\level\format\Chunk->setBlock(integer 312, integer 64, integer 0, integer 169)
[00:49:55] [Asynchronous Worker #0 thread/DEBUG]: #3 src/pocketmine/scheduler/AsyncTask(75): hcf\road\task\BuildRoadTask->onRun()
[00:49:55] [Asynchronous Worker #0 thread/DEBUG]: #4 (): pocketmine\scheduler\AsyncTask->run()

Code I used:

PHP:

/** @var Chunk $chunk */ 
$chunk->setBlock(int, int, int, Block::SEA_LANTERN);


 

X and Z coordinates of a chunk are bounded to 0-15, you're passing x=312 and z=169.

 

I had my mind over the chunk's x and chunk's z for some reason lol. Thank you!

 

Use

PHP:

$chunk->setBlock(int & 0x0f, int, int & 0x0f, ...);

¯\_(ツ)_/¯