看了下官方的介绍，alpha1开始取消掉对stuido等的扩展库的包含，要使用需要自己下载。
下载扩展库的命令是cocos package install gaf，我按照教程来，结果却提示这样的错误。。。
Running command: package
Traceback (most recent call last):
File “cocos.py”, line 719, in
run_plugin(command, argv, plugins)
File “cocos.py”, line 682, in run_plugin
plugin.run(argv, dependencies_objects)
File “C:\Users\Jeason1997\Desktop\cocos2d-x-4.0alpha1\tools\cocos2d-console\pl
ugins\package\plugin_package.py”, line 59, in run
commandObject.run(argv)
File “C:\Users\Jeason1997\Desktop\cocos2d-x-4.0alpha1\tools\cocos2d-console\pl
ugins\package\package_install.py”, line 29, in run
package_data = PackageHelper.query_package_data(name)
File “C:\Users\Jeason1997\Desktop\cocos2d-x-4.0alpha1\tools\cocos2d-console\pl
ugins\package\helper\package_helper.py”, line 56, in query_package_data
package_data = json.loads(html)
File “C:\Python27\lib\json_init_.py”, line 326, in loads
return _default_decoder.decode(s)
File “C:\Python27\lib\json\decoder.py”, line 366, in decode
obj, end = self.raw_decode(s, idx=_w(s, 0).end())
File “C:\Python27\lib\json\decoder.py”, line 384, in raw_decode
raise ValueError(“No JSON object could be decoded”)
ValueError: No JSON object could be decoded