can not use "bee run"

[ChiefMage]

Output an error when i use "bee run" /usr/local/go/pkg/tool/darwin_amd64/compile: pipe: too many open files

`panic: runtime error: index out of range

goroutine 1 [running]: github.com/beego/bee/utils.MacOSVersionSupport(0x0) /Users/gump/gopath/src/github.com/beego/bee/utils/notification.go:79 +0x153 github.com/beego/bee/utils.osxNotify(0x0, 0x0, 0x4687f56, 0xc) /Users/gump/gopath/src/github.com/beego/bee/utils/notification.go:47 +0x100 github.com/beego/bee/utils.Notify(0x0, 0x0, 0x4687f56, 0xc) /Users/gump/gopath/src/github.com/beego/bee/utils/notification.go:35 +0x54 github.com/beego/bee/cmd/commands/run.AutoBuild(0x4a03190, 0x0, 0x0, 0x4a03100) /Users/gump/gopath/src/github.com/beego/bee/cmd/commands/run/watch.go:161 +0x4a4 github.com/beego/bee/cmd/commands/run.RunApp(0x49d3f60, 0xc42008a010, 0x0, 0x0, 0x0) /Users/gump/gopath/src/github.com/beego/bee/cmd/commands/run/run.go:176 +0xb4f main.main() /Users/gump/gopath/src/github.com/beego/bee/main.go:70 +0x2ae`