(help)devtools and create a .phar plugin

Today, I try to do a plugin for API1.0.0, but I'm going to use DEVTOOL when I convert it to the format. Phar, the following issues arise, I ask this is my plug-in code contains an error or my approach is error.

Code:

15:09:52 [INFO] Starting Minecraft: PE server version v0.8.1 alpha
15:09:52 [INFO] Loading properties...
15:09:52 [INFO] Starting Minecraft PE server on *:19132
15:09:52 [INFO] This server is running PocketMine-MP version Alpha_1.4dev "絶好(Zekkou)ケーキ(Cake)" (API 1.0.0)
15:09:52 [INFO] PocketMine-MP is distributed under the LGPL License
15:09:52 [INFO] Loading DevTools v1.5.0
15:09:52 [INFO] Enabling DevTools v1.5.0
15:09:52 [INFO] Loading source plugin PMG v1.1.0

Fatal error: Uncaught exception 'RuntimeException' with message 'Autoloader couldn't find a file to include for juhua\pmg' in phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/spl/SplClassLoader.php:142
Stack trace:
#0 [internal function]: SplClassLoader->load('juhua\pmg')
#1 [internal function]: spl_autoload_call('juhua\pmg')
#2 phar://H:/mcpe/PocketMine-MP/plugins/DevTools_v1.5.0.phar/src/FolderPluginLoader/FolderPluginLoader.php(65): class_exists('juhua\pmg', true)
#3 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/plugin/PluginManager.php(141): FolderPluginLoader\FolderPluginLoader->loadPlugin('H:\mcpe\PocketM...')
#4 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/plugin/PluginManager.php(276): pocketmine\plugin\PluginManager->loadPlugin('H:\mcpe\PocketM...')
#5 phar://H:/mcpe/PocketMine-MP/plugins/DevTools_v1.5.0.phar/src/DevTools/DevTools.php(41): pocketmine\plugin\PluginManager->loadPlugins('H:\mcpe\PocketM...', Array)
#6 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmin in phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/spl/SplClassLoader.php on line 142

OK，For plugin.yml error from setting error, this problem has been resolved. .

OH，New troubles appeared，When I convert it to the format. Phar, delete the source file, an error like I said before the show.

Code:

15:43:34 [INFO] Starting Minecraft: PE server version v0.8.1 alpha
15:43:34 [INFO] Loading properties...
15:43:34 [INFO] Starting Minecraft PE server on *:19132
15:43:35 [INFO] This server is running PocketMine-MP version Alpha_1.4dev "絶好(Zekkou)ケーキ(Cake)" (API 1.0.0)
15:43:35 [INFO] PocketMine-MP is distributed under the LGPL License
15:43:35 [INFO] Loading DevTools v1.5.0
15:43:35 [INFO] Loading PMG v1.1.0

Fatal error: Uncaught exception 'RuntimeException' with message 'Autoloader couldn't find a file to include for juhua\pmg\PMG' in phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/spl/SplClassLoader.php:142
Stack trace:
#0 [internal function]: SplClassLoader->load('juhua\pmg\PMG')
#1 [internal function]: spl_autoload_call('juhua\pmg\PMG')
#2 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/plugin/PharPluginLoader.php(65): class_exists('juhua\pmg\PMG', true)
#3 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/plugin/PluginManager.php(141): pocketmine\plugin\PharPluginLoader->loadPlugin('H:\mcpe\PocketM...')
#4 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/plugin/PluginManager.php(276): pocketmine\plugin\PluginManager->loadPlugin('H:\mcpe\PocketM...')
#5 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/Server.php(1234): pocketmine\plugin\PluginManager->loadPlugins('H:\mcpe\PocketM...')
#6 phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/pocketmine/PocketMine.ph in phar://H:/mcpe/PocketMine-MP/PocketMine-MP.phar/src/spl/SplClassLoader.php on line 142