Crash on iOS because EXC_BAD_ACCESS

I was using CTPersistance library to manage my database file in iOS application project. And the CTPersistance library use SQLCipher at the bottom.Everything is fine.But it occasionally crashes inside the CQLCipher library.The code call stack when crashing is as follows.


I want to know what is wrong with it.The SQLCipher version is 4.1.0.

Hello @zhongguang_zhou - unfortunately there is not enough information here to determine what the issue is. Can you narrow down exactly what operations are running at the time of a crash? Are you using connections across threads?