解决：error: Cannot fetch repo (TypeError: expected string or buffer)

同步源码，问题重现：

 Fetching project platform/external/libopus
 Fetching project repo
 error: Cannot fetch repo (TypeError: expected string or buffer)
 Fetching project CyanogenMod/android_external_tinycompress
 Exception in thread Thread-:
 Traceback (most recent call last):
   File "/usr/lib/python2.7/threading.py", line , in __bootstrap_inner
     self.run()
   File "/usr/lib/python2.7/threading.py", line , in run
     self.__target(*self.__args, **self.__kwargs)
   File "/home/dinphy/sm/.repo/repo/subcmds/sync.py", line , in _FetchProjectList
     success = self._FetchHelper(opt, project, *args, **kwargs)
   File "/home/dinphy/sm/.repo/repo/subcmds/sync.py", line , in _FetchHelper
     prune=opt.prune)
   File "/home/dinphy/sm/.repo/repo/project.py", line , in Sync_NetworkHalf
     no_tags=no_tags, prune=prune)):
   File "/home/dinphy/sm/.repo/repo/project.py", line , in _RemoteFetch
     if remote.PreConnectFetch():
   File "/home/dinphy/sm/.repo/repo/git_config.py", line , in PreConnectFetch
     return _preconnect(connectionUrl)
   File "/home/dinphy/sm/.repo/repo/git_config.py", line , in _preconnect
     m = URI_ALL.match(url)
 TypeError: expected string or buffer

分析问题，寻找方案：

1、问题所在：主要是repo的问题，只需要重新下载repo即可。

2、下载repo需要IP代理，http://www.cnblogs.com/dinphy/p/5619854.html

3、终端输入命令重新下载repo并初始化：

#新建bin目录
mkdir ~/bin

#指定路径
PATH=~/bin:$PATH

#下载repo，并移动到bin目录下
curl https://commondatastorage.googleapis.com/git-repo-downloads/repo > ~/bin/repo

#给repo赋予读写权限
chmod a+x ~/bin/repo

4、回到项目的目录，重新初始化源码，然后repo sync

5、OK，完美结束。