iOS compilation error: cross compilation job failed


I am trying to compile my project to iOS. When I do that Unity gives me a cross compilation job failed error for all my mono dlls.

I tried already to set the API Compatibility Level to .Net 2.0 but still the same errors occur.

Can anyone tell me how I can compile my project to iOS successfully?
If possible I would prefer not to delete those dlls because I need them when I compile this project to Windows or Mac OS.

Thank you in advance.

If your DLLs are not pure managed dlls (without any native dependencies) it should work. What are those DLLs? Are you sure they are 100% managed? If you don’t need them, remove them, there’s no way around that if they doesn’t work on iOS