无法启动开发服务器 - BindError：无法找到一致的本地端口 [英] Failed to start devlopment server -- BindError: Unable to find a consistent port localhost

问题描述

Google-app-engine开发服务器昨天运行良好，但是当我今天尝试启动它时。它只喊出这个错误。

我试过使用 lsof -i：8080 / lsof -i：8000 code>确保这些端口不被占用。
我也尝试使用--port arg切换到另一个端口。
我甚至删除了gae文件夹并安装了一个新文件夹。
- 没有任何运气。

也许有一个明显的解决方案，但我看不到它。

$
$ b

  Traceback（最近一次调用最后一次）：b $ b 
这是Oh-My-God跟踪堆栈。 
文件/home/henry/software/google_appengine/dev_appserver.py，第182行，位于< module> 
 _run_file（__ file__，globals（））
文件/home/henry/software/google_appengine/dev_appserver.py，第178行，位于_run_file 
 execfile（script_path，globals_）
在< module>文件中的/home/henry/software/google_appengine/google/appengine/tools/devappserver2/devappserver2.py，第689行。 
 main（）
在主
 dev_server.start（选项）中的文件/home/henry/software/google_appengine/google/appengine/tools/devappserver2/devappserver2.py，第682行。 
文件/home/henry/software/google_appengine/google/appengine/tools/devappserver2/devappserver2.py，第653行，开头
 apis.start（）
文件/ home / home / henry / start / 
 super（APIServer，self）.start（）
启动$ / b $ / （无法找到一致的端口％s'％host）
 google.appengine。 tools.devappserver2.wsgi_server.BindError：无法找到一致的端口localhost 
 Thread-4线程中的异常（最有可能在解释器关闭期间引发）：
 Traceback（最近一次调用最后一次）：
文件/usr/lib/python2.7/threading.py，第81行0，在__bootstrap_inner 
文件/usr/lib/python2.7/threading.py，第763行，在runhenry @ henry-A 
  

解决方案

这可能是由于您的主机文件中有多个条目用于'localhost'。

例如在文件 / etc / hosts 中：

  127.0 .0.1 localhost 
 127.0.0.1 mymachinename localhost 
  

如果您删除所有映射，但是一个用于localhost ，问题将有望得到解决。

  127.0.0.1 mymachinename localhost 
  

这是一个已知问题，据我了解，它将在未来版本中得到纠正。

Google-app-engine development server runs great yesterday, but when I try to start it today. It only shout out this Error.

I tried use lsof -i:8080 / lsof -i:8000 to make sure these ports are not taken. I also tried use a --port arg to switch to another port. I even removed the gae folder and installed a new one. -- with no luck at all.

Maybe there is a obvious solution but I can't see it.

Here is the Oh-My-God trace stack..

Traceback (most recent call last):
File "/home/henry/software/google_appengine/dev_appserver.py", line 182, in <module>
        _run_file(__file__, globals())
File "/home/henry/software/google_appengine/dev_appserver.py", line 178, in _run_file
        execfile(script_path, globals_)
File "/home/henry/software/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 689, in <module>
        main()
File "/home/henry/software/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 682, in main
        dev_server.start(options)
File "/home/henry/software/google_appengine/google/appengine/tools/devappserver2/devappserver2.py", line 653, in start
        apis.start()
File "/home/henry/software/google_appengine/google/appengine/tools/devappserver2/api_server.py", line 152, in start
        super(APIServer, self).start()
File "/home/henry/software/google_appengine/google/appengine/tools/devappserver2/wsgi_server.py", line 294, 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
    Exception in thread Thread-4 (most likely raised during interpreter shutdown):
    Traceback (most recent call last):
      File "/usr/lib/python2.7/threading.py", line 810, in __bootstrap_inner
      File "/usr/lib/python2.7/threading.py", line 763, in runhenry@henry-A

解决方案

This can be caused by multiple entries in your hosts file for 'localhost'.

For example in file /etc/hosts:

127.0.0.1 localhost
127.0.0.1 mymachinename localhost

if you delete all mappings but one for localhost, the problem will hopefully be resolved.

127.0.0.1 mymachinename localhost

This is a known issue and as far as I understand it will be corrected in a future release.

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