如何解决'无法找到一致的端口localhost'App Engine错误？

Question

我正在尝试运行Google App Engine,只是为了获得一个hello world app,但一直都失败了.我在Windows 7上并试图使用GUI启动器以及Cygwin终端.跟踪了SO论坛的许多不同建议(无法启动开发服务器 - BindError:无法找到一致的端口localhost)和其他:

- 我已将etc/hosts文件中的localhosts条目编辑为127.0.0.1

- 我重新安装了Google App Engine软件包

- 编辑.yaml和main.py文件

- 将端口更改为9000和8888

- 明确指定我正在启动的主机？(例如: - skip_sdk_update_check = yes --port = 8080 --admin_port = 8000 --host 127.0.0.1)

- 专门允许应用引擎启动器通过防火墙进行通信

什么都没有改变.

错误消息显示:

"2013-07-13 16:35:05 Running command: "['C:\\Python27\\python.exe', 'C:\\Program Files (x86)\\Google\\google_appengine\\dev_appserver.py', '--skip_sdk_update_check=yes', '--port=8080', '--admin_port=8000', u'C:\\Users\\Greg\\hello-udacity']"
INFO     2013-07-13 16:35:12,631 devappserver2.py:528] Skipping SDK update check.
WARNING  2013-07-13 16:35:12,655 api_server.py:314] Could not initialize images API; you are likely missing the Python "PIL" module.
WARNING  2013-07-13 16:35:12,660 simple_search_stub.py:955] Could not read search indexes from c:\users\greg\appdata\local\temp\appengine.hello-udacity\search_indexes
Traceback (most recent call last):
  File "C:\Program Files (x86)\Google\google_appengine\dev_appserver.py", line 182, in <module>
    _run_file(__file__, globals())
  File "C:\Program Files (x86)\Google\google_appengine\dev_appserver.py", line 178, in _run_file
    execfile(script_path, globals_)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\devappserver2.py", line 695, in <module>
    main()
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\devappserver2.py", line 688, in main
    dev_server.start(options)
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\devappserver2.py", line 659, in start
    apis.start()
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\api_server.py", line 137, in start
    super(APIServer, self).start()
  File "C:\Program Files (x86)\Google\google_appengine\google\appengine\tools\devappserver2\wsgi_server.py", line 298, in start
    raise BindError('Unable to find a consistent port %s' % host)
google.appengine.tools.devappserver2.wsgi_server.BindError: Unable to find a consistent port localhost
2013-07-13 16:35:12 (Process exited with code 1)"

Answer 1

从错误消息看来您正在明确传递--skip_sdk_update_check=yes --port=8080 --admin_port=8000

您是否尝试过指定要启动的主机？例如：

--skip_sdk_update_check=yes --port=8080 --admin_port=8000 --host 127.0.0.1

另一个有趣的项目是暂时杀死您计算机上运行的所有防火墙，看看这是否会产生影响。