I can't use it

[LYEmerald]

Can you provide a default room file?No matter how I configure it, I can't join the game

[14:19:24.742] [Server thread/CRITICAL]: pocketmine\world\format\io\exception\UnsupportedWorldFormatException: "World "BB-GAME-0" is in an unsupported format and needs to be upgraded" (EXCEPTION) in "pmsrc/src/world/WorldManager" at line 238 --- Stack trace ---

0 plugins/BuildBattle/src/cooldogedev/BuildBattle/game/Game(91): pocketmine\world\WorldManager->loadWorld(string[9] BB-GAME-0)

1 plugins/BuildBattle/src/cooldogedev/BuildBattle/async/ClosureBackgroundTask(44): cooldogedev\BuildBattle\game\Game->cooldogedev\BuildBattle\game{closure}(object cooldogedev\BuildBattle\async\directory\AsyncDirectoryClone#160512)

2 pmsrc/src/scheduler/AsyncPool(268): cooldogedev\BuildBattle\async\ClosureBackgroundTask->onCompletion()

3 pmsrc/src/scheduler/AsyncPool(140): pocketmine\scheduler\AsyncPool->collectTasksFromWorker(int 0)

4 pmsrc/vendor/pocketmine/snooze/src/SleeperHandler(123): pocketmine\scheduler\AsyncPool->pocketmine\scheduler{closure}()

5 pmsrc/src/TimeTrackingSleeperHandler(58): pocketmine\snooze\SleeperHandler->processNotifications()

6 pmsrc/vendor/pocketmine/snooze/src/SleeperHandler(82): pocketmine\TimeTrackingSleeperHandler->processNotifications()

7 pmsrc/src/Server(1695): pocketmine\snooze\SleeperHandler->sleepUntil(float 1675664364.7588)

8 pmsrc/src/Server(1053): pocketmine\Server->tickProcessor()

9 pmsrc/src/PocketMine(339): pocketmine\Server->__construct(object BaseClassLoader#5, object pocketmine\utils\MainLogger#4, string[40] C:\Users\MSI-PC\Desktop...............\, string[48] C:\Users\MSI-PC\Desktop...............\plugins)

10 pmsrc/src/PocketMine(362): pocketmine\server()

11 pmsrc(11): require(string[84] phar://C:/Users/MSI-PC/Desktop/.............../PocketMine-MP.phar/src/PocketMine)

--- End of exception information --- [14:19:24.744] [Server thread/EMERGENCY]: An unrecoverable error has occurred and the server has crashed. Creating a crash dump [14:19:24.749] [Server thread/EMERGENCY]: Please upload the "C:/Users/MSI-PC/Desktop/新建筑大师/crashdumps/Mon_Feb_6-14.19.24-AWST_2023.log" file to the Crash Archive and submit the link to the Bug Reporting page. Give as much info as you can. [14:19:24.750] [Server thread/EMERGENCY]: Forcing server shutdown

[cooldogedev]

Looks like the world you're trying to use is unsupported by PocketMine, load it first via a world management utility to upgrade it.

[LYEmerald]

OK