`go get` error

[Joaquín]

When i try to download the package using go get -u github.com/xtaci/gaio i recieve the following output:

# github.com/xtaci/gaio
..\..\..\..\pkg\mod\github.com\xtaci\gaio@v1.2.13\aio_generic.go:132:2: undefined: watcher

[BossJod]

same with me,

github.com/xtaci/gaio

C:\Program Files\Go\pkg\mod\github.com\xtaci\gaio@v1.2.14\aio_generic.go:132:3: undefined: watcher

[xtaci]

only available on linux & bsd