IOS开发遇到的问题和解决方法

1、The identity 'iPhone Developer' doesn't match any valid, non-expired certificate/private key pair in your keychain

A valid provisioning profile matching the application's Identifier could not be found

原因：没开发证书

解决：导入可用provisioning profiles，并且在build settings->Code signing->Code Signing Identity选择导入的用于Debug和release的provisioning profiles，如果提示工程与profiles的app的Identity不匹配，修改project的bundle Identity和profiles的一致：如profiles的是jixjg.com.myapp则改project的为：com.myapp
2、 运行出现“Could not luanch，timed out for waiting app”或者“Server 。。another instance running”问题，重启设备
3、 类库路径设置：build settings 搜索Library Search Paths
4、
Could not change executable permissions on the applicationhttp://stackoverflow.com/questions/12547706/could-not-change-executable-permissions-on-the-applicationI could solve it erasing an application that I had previously uploaded using the same Bundle Identifier (xcode get's confused doing the chmod). Try checking the log from xCode Organizer (Your device's Name -> Console)
you should get information from that log.
5、