unity3d ios 应用闪退 variables may not be available

报错提示：XXXX’ was compiled with optimization - stepping may behave oddly; variables may not be available
Player Setting – Other Setting，去掉勾选 Strip Engine Code

unity里trip engine code在build setting的other setting中，勾选可以让代码进行压缩，自动不打包没有用到的代码，但是勾选这个选项后可能会导致个别项目进行到有些地方直接崩溃