Android source code[ 源代码]下载，问题和解决办法

My environments: Ubuntu 11.04

Android source code: Android-4.1.1.1_r4

How to download the Android source code?

Referenced from:http://source.android.com/source/downloading.html
But maybe you will get many error as below, you just need the constancy or re do the "repo sync" command!!
=========Get error:===========================

   fatal: Not a git repository: '/home/yourname/android_source/.repo/projects/abi/cpp.git'
   fatal: Not a git repository: '/home/yourname/android_source/.repo/projects/abi/cpp.git'
   error: Cannot fetch platform/abi/cpp
   warn: --force-broken, continuing to sync
    Fetching projects:   3% (7/228)  fatal: Not a git repository: '/home/yourname/android_source/.repo/projects/cts.git'
   fatal: Not a git repository: '/home/yourname/android_source/.repo/projects/cts.git'
   error: Cann ot fetch platform/cts
   warn: --force-broken, continuing to sync
   error: The requested URL returned error: 403 while accessing https://android.googlesource.com/platform/development/info/refs


   fatal: HTTP request failed
   error: gnutls_handshake() failed: A TLS packet with unexpected length was received. while accessing https://android.googlesource.com/platform/  development/info/refs


   fatal: HTTP request failed
   error: Cannot fetch platform/development
   warn: --force-broken, continuing to sync

========Sovle above problem:============================

   cxl@cxl-ThinkPad-E420:~/android_source/.repo/projects/abi$ rm -f -r cpp.git
   cxl@cxl-ThinkPad-E420:~/android_source/.repo/projects/rm -f -r cts.git

========Finish download the source code=================

cxl@cxl-ThinkPad-E420:~/android_source$ repo sync
......
 * [new tag]         android-4.1.1_r4 -> android-4.1.1_r4
remote: Counting objects: 1, done
remote: Finding sources: 100% (1/1)
remote: Total 1 (delta 0), reused 1 (delta 0)
Unpacking objects: 100% (1/1), done.
From https://android.googlesource.com/platform/packages/apps/BasicSmsReceiver
 * [new tag]         android-4.1.1_r4 -> android-4.1.1_r4
remote: Counting objects: 65, done
remote: Finding sources: 100% (40/40)
remote: Getting sizes: 100% (40/40)
remote: Compressing objects: 100% (15/15)
remote: Total 40 (delta 21), reused 36 (delta 21)
Unpacking objects: 100% (40/40), done.
From https://android.googlesource.com/platform/sdk
   9d34dab..0920b8e  master     -> aosp/master
Fetching projects: 100% (294/294), done.  
info: A new version of repo is available

project .repo/repo/
Updating e8f75fa..5e7127d
Fast-forward
 docs/manifest-format.txt |   13 ++++-
 git_command.py           |    2 +-
 manifest_xml.py          |   19 ++++--
 project.py               |  148 +++++++++++++---------------------------------
 subcmds/overview.py      |   80 +++++++++++++++++++++++++
 subcmds/sync.py          |    6 +-
 subcmds/upload.py        |    5 +-
 7 files changed, 157 insertions(+), 116 deletions(-)
 create mode 100644 subcmds/overview.py

info: Restarting repo with latest version
Fetching projects: 100% (294/294), done.  
Checking out files: 100% (4587/4587), done.ut files:  36% (1666/4587)   
Checking out files: 100% (6222/6222), done.out files:  26% (1625/6222)   
Checking out files: 100% (8843/8843), done. out files:   8% (755/8843)   
Checking out files: 100% (24601/24601), done.ut files:  40% (9923/24601)   
Checking out files: 100% (17893/17893), done.ut files:   8% (1465/17893)   
Checking out files: 100% (624/624), done.
Checking out files: 100% (974/974), done.ng out files:   1% (12/974)   
Checking out files: 100% (667/667), done.ng out files:  15% (104/667)   
Checking out files: 100% (370/370), done.ng out files:   8% (30/370)   
Checking out files: 100% (2407/2407), done. out files:  29% (720/2407)   
Checking out files: 100% (2412/2412), done. out files:   1% (27/2412)   
Checking out files: 100% (974/974), done.
Checking out files: 100% (26958/26958), done.ut files:  32% (8780/26958)   
Checking out files: 100% (81/81), done.
Checking out files: 100% (441/441), done.ng out files:  46% (205/441)   
Checking out files: 100% (4344/4344), done.
Syncing work tree: 100% (294/294), done.  

-----------------------------------------------------Below is another solution, but it is not fix my problem,my be you can try it-----------------------------------------------------------

The error:

Exception in thread Thread-119:
Traceback (most recent call last):
  File "/usr/lib/python2.7/threading.py", line 552, in __bootstrap_inner
    self.run()
File "/usr/lib/python2.7/threading.py", line 505, in run
    self.__target(*self.__args, **self.__kwargs)
  File "/home/cxl/android_source/.repo/repo/subcmds/sync.py", line 200, in _FetchHelper
    clone_bundle=not opt.no_clone_bundle)
  File "/home/cxl/android_source/.repo/repo/project.py", line 968, in Sync_NetworkHalf
    and self._ApplyCloneBundle(initial=is_new, quiet=quiet):
  File "/home/cxl/android_source/.repo/repo/project.py", line 1526, in _ApplyCloneBundle
    exist_dst = self._FetchBundle(bundle_url, bundle_tmp, bundle_dst, quiet)
  File "/home/cxl/android_source/.repo/repo/project.py", line 1590, in _FetchBundle
    raise DownloadError('%s: %s ' % (req.get_host(), str(e)))
DownloadError: android.googlesource.com: <urlopen error [Errno 8] _ssl.c:503: EOF occurred in violation of protocol> 


error: RPC failed; result=56, HTTP code = 200B   
fatal: The remote end hung up unexpectedly
fatal: early EOF
fatal: index-pack failed
warning: https unexpectedly said: '0000'
error: Cannot fetch platform/external/qemu

===========solution:==========================

（http://source.android.com/source/downloading.html）有段说明，如果认真执行就可解决。
1. 浏览器登录https://android.googlesource.com/new-password，并用gmail帐号登录；
2. 点击网页上的“允许访问”，得到类似：
[plain]
1. machine android.googlesource.com login git-<userName>.gmail.com password <password> 
2. machine android-review.googlesource.com login git-<userName>.gmail.com password <password> 
 
的信息。
3. 把上面那段信息（<userName>和<password>用自己得到的真实信息）追加到~/.netrc文件结尾；
4. 下载地址的URI更改为https://android.googlesource.com/a/platform/manifest（中间加上了“/a”）。
然后按照官网描述的正常步骤操作，即可拉下Android源码。
官方的说法是：因为访问基本是匿名的，为了防止连接过多，对同一IP地址的连接数做了一定的限制。看来是用gmail帐号进行认证。
这样的话，在公司网络内或者用虚拟机下载的话，会经常遇到这问题。

PS:
这一步骤必须把之前的.repo删除掉才行.