Failed to load AOT module 'Assembly-CSharp' while running in aot-only mode because a dependency cannot be found or it is out of date.

I can build my app with Xcode to IOS platform. However, my app shuts down when it is on splash screen stage. The last log of Xcode before crush is that " Failed to load AOT module 'Assembly-CSharp' while running in aot-only mode because a dependency cannot be found or it is out of date. " How can I fix it? Thanks for all.