绑定错误：无法为localhost找到一致的端口

Question

抱歉再次提这个问题，我看到之前有人问过这个问题，但没有得到答案，我现在还是遇到这个问题。我不知道怎么重新提问。 :)

我在本地运行Google App Engine开发服务器时，偶尔会遇到一些问题。我想强调的是，这些问题是偶发的，我很难搞清楚问题出在哪里。我使用的是Mac OS X Mavericks。

我主要在两个地方工作，以前在这两个地方都能正常运行，现在只有一个地方出现问题。我尝试过一些简单的操作，比如切换有线和无线网络，甚至在没有互联网的情况下运行。

我运行了

dev_appserver.py ShoppingList/

然后得到了以下输出

INFO     2014-10-29 20:19:40,423 devappserver2.py:733] Skipping SDK update check.
WARNING  2014-10-29 20:19:40,427 api_server.py:383] Could not initialize images API; you are likely missing the Python "PIL" module.
WARNING  2014-10-29 20:19:40,428 simple_search_stub.py:1098] Could not read search indexes from /var/folders/0x/6w6yzwhx28780kdnwpqdz2dc0000gn/T/appengine.husk-lige.mortenmedici/search_indexes
Traceback (most recent call last):
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 82, in <module>
    _run_file(__file__, globals())
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/dev_appserver.py", line 78, in _run_file
    execfile(_PATHS.script_file(script_name), globals_)
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 986, in <module>
    main()
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 979, in main
    dev_server.start(options)
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 778, in start
    apis.start()
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/api_server.py", line 170, in start
    super(APIServer, self).start()
  File "/Users/mortenmedici/Directory to extract under (this will create a directory google-cloud-sdk) /Users/mortenmedici install_dst/google-cloud-sdk/platform/google_appengine/google/appengine/tools/devappserver2/wsgi_server.py", line 314, in start
    raise BindError('Unable to find a consistent port for %s' % host)
google.appengine.tools.devappserver2.wsgi_server.BindError: Unable to find a consistent port for localhost

我尝试过其他答案中关于BindError的解决方案：应用程序无法在GAE上运行 - '无法绑定到localhost:0'

启动开发服务器失败 -- BindError: 无法找到一致的端口localhost我没有其他服务器实例在运行，我的/etc/hosts中只有一个localhost，换一个端口也没有帮助。

注意，错误只出现在'localhost'上，而不是'localhost:0'或其他特定端口，这在其他问题中是有提到的。我不知道这是否提供了任何信息。

非常感谢任何帮助。

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绑定错误：无法为localhost找到一致的端口

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