使用Cocoapods私有库时，导入JPush，报错library not found for -ljcore-ios-1.2.1

使用pod lib create xxx创建了一个私有库，我在私有库里面导入了JPush，一开始用CocoaPods方式导入，报错JHService.h等推送 头文件读取失败，然后我又手动导入两个.a文件，报ibrary not found for -ljcore-ios-1.2.1这个错误

我的podspec文件是这么配置的：

```
s.frameworks = 'UIKit',
'MapKit',
'CFNetwork',
'CoreFoundation',
'CoreTelephony',
'SystemConfiguration',
'CoreGraphics',
'Foundation',
'Security',
'AdSupport',
'UserNotifications'
s.libraries = 'z','resolv'
s.vendored_libraries = 'JHMessage/Classes/ThirdFrameworks/*.{a}'