ionic蘋果端build時Undefined symbols for architecture x86_64

詳細錯誤信息如下：

Undefined symbols for architecture x86_64:
  "_dns_parse_resource_record", referenced from:
      -[JPUSHSRVResolver processRecord:length:] in jcore-ios-1.1.5.a(JPUSHSRVResolver.o)
  "_dns_free_resource_record", referenced from:
      -[JPUSHSRVResolver processRecord:length:] in jcore-ios-1.1.5.a(JPUSHSRVResolver.o)
ld: symbol(s) not found for architecture x86_64
clang: error: linker command failed with exit code 1 (use -v to see invocation)



......
export IPHONEOS_DEPLOYMENT_TARGET=9.0
......

解決方式：添加libresolv.tbd

項目--》target--》選中對應項目拉到底部--》LInked Frameworks and Libraries-->add

步驟如下圖：