Try to compile to swc, but it doesn't work

I'm new to haxe, and I'd like to use ds in my actionscript3 projects.
I have tried on my macbook and another windows laptop,the first command in run.bat can't run:
`haxe -neko Import.n -main Import

~/polygonal-ds/tools/swc/import.hx:8: lines 8-289 : Only import and using is allowed in import.hx files`

How to fix this issue?Thanks