❯ et build -c host_debug_unopt_arm64
[2025-04-28 19:53:00.328882][macos/host_debug_unopt_arm64: GN]: FAILED
COMMAND:
/Users/tongmu/dev/flutter/engine/src/flutter/tools/gn --runtime-mode debug --unopt --mac-cpu arm64 --xcode-symlinks --rbe --no-goma --lto
STDOUT:

STDERR:
Traceback (most recent call last):
  File "/Users/tongmu/dev/flutter/engine/src/flutter/tools/gn", line 1311, in <module>
    sys.exit(main(sys.argv))
  File "/Users/tongmu/dev/flutter/engine/src/flutter/tools/gn", line 1290, in main
    gn_args = to_command_line(to_gn_args(args))
  File "/Users/tongmu/dev/flutter/engine/src/flutter/tools/gn", line 529, in to_gn_args
    gn_args.update(setup_apple_sdks())
  File "/Users/tongmu/dev/flutter/engine/src/flutter/tools/gn", line 301, in setup_apple_sdks
    platform_entries = os.listdir(platforms_path)
FileNotFoundError: [Errno 2] No such file or directory: '/Users/tongmu/dev/flutter/engine/src/flutter/prebuilts/Platforms'