diff --git a/src/pocketmine/Player.php b/src/pocketmine/Player.php
index e27b3b779..c997a0987 100644
--- a/src/pocketmine/Player.php
+++ b/src/pocketmine/Player.php
@@ -48,6 +48,7 @@ use pocketmine\event\player\PlayerChangeSkinEvent;
 use pocketmine\event\player\PlayerChatEvent;
 use pocketmine\event\player\PlayerCommandPreprocessEvent;
 use pocketmine\event\player\PlayerDeathEvent;
+use pocketmine\event\player\PlayerDuplicateLoginEvent;
 use pocketmine\event\player\PlayerEditBookEvent;
 use pocketmine\event\player\PlayerExhaustEvent;
 use pocketmine\event\player\PlayerGameModeChangeEvent;
@@ -59,7 +60,6 @@ use pocketmine\event\player\PlayerJoinEvent;
 use pocketmine\event\player\PlayerJumpEvent;
 use pocketmine\event\player\PlayerKickEvent;
 use pocketmine\event\player\PlayerLoginEvent;
-use pocketmine\event\player\PlayerDuplicateLoginEvent;
 use pocketmine\event\player\PlayerMoveEvent;
 use pocketmine\event\player\PlayerPreLoginEvent;
 use pocketmine\event\player\PlayerQuitEvent;
@@ -96,6 +96,7 @@ use pocketmine\network\mcpe\CompressBatchPromise;
 use pocketmine\network\mcpe\NetworkCipher;
 use pocketmine\network\mcpe\NetworkLittleEndianNBTStream;
 use pocketmine\network\mcpe\NetworkSession;
+use pocketmine\network\mcpe\ProcessLoginTask;
 use pocketmine\network\mcpe\protocol\AdventureSettingsPacket;
 use pocketmine\network\mcpe\protocol\AnimatePacket;
 use pocketmine\network\mcpe\protocol\AvailableCommandsPacket;
@@ -123,7 +124,6 @@ use pocketmine\network\mcpe\protocol\types\CommandParameter;
 use pocketmine\network\mcpe\protocol\types\ContainerIds;
 use pocketmine\network\mcpe\protocol\types\PlayerPermissions;
 use pocketmine\network\mcpe\protocol\UpdateAttributesPacket;
-use pocketmine\network\mcpe\ProcessLoginTask;
 use pocketmine\permission\PermissibleBase;
 use pocketmine\permission\PermissionAttachment;
 use pocketmine\permission\PermissionAttachmentInfo;
diff --git a/src/pocketmine/block/Rail.php b/src/pocketmine/block/Rail.php
index 2101cfaf6..cc78c4c40 100644
--- a/src/pocketmine/block/Rail.php
+++ b/src/pocketmine/block/Rail.php
@@ -23,7 +23,6 @@ declare(strict_types=1);
 
 namespace pocketmine\block;
 
-use pocketmine\block\utils\InvalidBlockStateException;
 use pocketmine\math\Facing;
 
 class Rail extends BaseRail{
diff --git a/src/pocketmine/level/generator/object/Tree.php b/src/pocketmine/level/generator/object/Tree.php
index 4546fba94..aa6993017 100644
--- a/src/pocketmine/level/generator/object/Tree.php
+++ b/src/pocketmine/level/generator/object/Tree.php
@@ -28,7 +28,6 @@ use pocketmine\block\BlockFactory;
 use pocketmine\block\Leaves;
 use pocketmine\block\Sapling;
 use pocketmine\block\utils\WoodType;
-use pocketmine\block\Wood;
 use pocketmine\level\BlockWriteBatch;
 use pocketmine\level\ChunkManager;
 use pocketmine\utils\Random;