在编译webrtc ios的过程工遇到的问题

编译 gn gen out/ios_64 --args='target_os="ios" target_cpu="arm64"

出线错误

ERROR at //build/config/ios/ios_sdk.gni:100:21: Script returned non-zero exit code.

  _ios_sdk_result = exec_script(script_name, ios_sdk_info_args, "scope")

                    ^----------

Current dir: /Users/lenkeng/Documents/webrtc_build/webrtc/src/out/ios_64/

Command: python -- /Users/lenkeng/Documents/webrtc_build/webrtc/src/build/config/mac/sdk_info.py iphoneos

Returned 1.

stderr:

xcode-select: error: tool 'xcodebuild' requires Xcode, but active developer directory '/Library/Developer/CommandLineTools' is a command line tools instance

Traceback (most recent call last):

  File "/Users/lenkeng/Documents/webrtc_build/webrtc/src/build/config/mac/sdk_info.py", line 69, in

    FillXcodeVersion(settings)

  File "/Users/lenkeng/Documents/webrtc_build/webrtc/src/build/config/mac/sdk_info.py", line 26, in FillXcodeVersion

    lines = subprocess.check_output(['xcodebuild', '-version']).splitlines()

  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 '['xcodebuild', '-version']' returned non-zero exit status 1

See //build/config/ios/rules.gni:5:1: whence it was imported.

import("//build/config/ios/ios_sdk.gni")

^--------------------------------------

See //webrtc/webrtc.gni:32:3: whence it was imported.

  import("//build/config/ios/rules.gni")

  ^------------------------------------

See //BUILD.gn:9:1: whence it was imported.

import("webrtc/webrtc.gni")

^-------------------------

出现这个问题主要是由于xcode-select 路径配置有问题

https://github.com/meteor/meteor/issues/7905

经查,修改一下xcode-select path

sudo xcode-select -s /Applications/Xcode.app/Contents/Developer/