新开发的一个app打包报错，度娘谷歌了好久，废了不少时间，发现错误提示已经很明显了，只是自己没读懂而已，先说下问题和解决方法，给同意遇到这个问题的你：
Failed to locate or generate matching signing assets:
Xcode attempted to locate or generate matching signing assets and failed to do so because of the following issues:
No matching provisioning profiles found for "Applications/MyApp.app”
None of the valid provisioning profiles allowed the specified entitlements: application-identifier, beta-reports-active, keychain-access-groups.
一直以为是证书问题，其实不然，是Bundle Identifier配置不同步问题。
配置Bundle Identifier的有两个地方，必须同步：
1、TARGETS > Identity > Bundle Identifier（也可以在Info.plist里面修改）；
2、TARGETS > Build Settings > Packaging > Product Bundle Identifier；
以上是路径，这两个地方的Bundle Identifier值必须一致，不然会让xcode懵逼。
解决问题的启发来自这里的一句话：
https://*.com/questions/28006773/xcode6-error-no-matching-provisioning-profiles-found-for-application
In my case, the problem was caused by different Bundle Identifier in Target General tab than in Build Setttings.