gclient sync erro

[HYRobin]

Hello sir , when i git c from github, i can't do gclient sync successfull.
my .gclient
solutions = [
{ "name" : "src/xwalk",
"url" : "https://github.com/ks32/crosswalk.git",
"deps_file" : "DEPS",
"managed" : True,
"custom_deps" : {
},
"custom_vars": {},
},
]
target_os = [ 'android' ]

when i do gclient sysc , i got problems as bwlow,
1>________ running 'git -c core.deltaBaseCacheLimit=2g clone --no-checkout --progress https://github.com/ks32/crosswalk.git /home/chrome/xwalk/src/_gclient_xwalk_9fJA79' in '/home/chrome/xwalk'
1>Cloning into '/home/chrome/xwalk/src/_gclient_xwalk_9fJA79'...

how can i get right github code, please tell me , thank you every much!