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-230:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 801, in __bootstrap_inner
    self.run()
  File "/usr/lib/python2.7/threading.py", line 754, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/home/dinphy/sm/.repo/repo/subcmds/sync.py", line 270, in _FetchProjectList
    success = self._FetchHelper(opt, project, *args, **kwargs)
  File "/home/dinphy/sm/.repo/repo/subcmds/sync.py", line 314, in _FetchHelper
    prune=opt.prune)
  File "/home/dinphy/sm/.repo/repo/project.py", line 1267, in Sync_NetworkHalf
    no_tags=no_tags, prune=prune)):
  File "/home/dinphy/sm/.repo/repo/project.py", line 1933, in _RemoteFetch
    if remote.PreConnectFetch():
  File "/home/dinphy/sm/.repo/repo/git_config.py", line 605, in PreConnectFetch
    return _preconnect(connectionUrl)
  File "/home/dinphy/sm/.repo/repo/git_config.py", line 549, 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。