Liam Appelbe

> For instance, it's totally fine for the Dart compiler to be somewhere in the middle, and to want to optimise the layout, and that could even involve reordering the...

Hi @xiaozn-github. The ["Not supported on simulated architectures" error](https://github.com/dart-lang/sdk/blob/e5602b34670d375d1887c8d24b14e62d367deb27/runtime/lib/ffi_dynamic_library.cc#L37) is because your [host architecture is different from your target architecture](https://github.com/dart-lang/sdk/blob/e5602b34670d375d1887c8d24b14e62d367deb27/runtime/platform/globals.h#L360). Flutter tests in general should work fine on the simulator,...