尝试在Mac上下载适用于iOS的WebRTC最新源时，其失败并出现以下错误：
Running: gclient sync --with_branch_heads
Error: Command '/usr/bin/python src/webrtc/build/gyp_webrtc -Dextra_gyp_flag=0' returned non-zero exit status 1 in /Users/Latest
Traceback (most recent call last):
File "/Users/Latest/depot_tools/fetch.py", line 346, in <module>
sys.exit(main())
File "/Users/Latest/depot_tools/fetch.py", line 341, in main
return run(options, spec, root)
File "/Users/Latest/depot_tools/fetch.py", line 335, in run
return checkout.init()
File "/Users/Latest/depot_tools/fetch.py", line 142, in init
self.run_gclient(*sync_cmd)
File "/Users/Latest/depot_tools/fetch.py", line 76, in run_gclient
return self.run(cmd_prefix + cmd, **kwargs)
File "/Users/Latest/depot_tools/fetch.py", line 66, in run
return subprocess.check_output(cmd, **kwargs)
File "/System/Library/Frameworks/Python.framework/Versions/2.7/lib/python2.7/subprocess.py", line 573, in check_output
raise CalledProcessError(retcode, cmd, output=output)
subprocess.CalledProcessError: Command '('gclient', 'sync', '--with_branch_heads')' returned non-zero exit status 2
我正在执行here给出的相同步骤 任何解决方案？