after go install, get the following error.

[normanjin]

command/schedule_cmd.go:4:2: cannot find package "context" in any of:
/home/test/go/src/context (from $GOROOT)
/home/test/src/context (from $GOPATH)
../../urfave/cli/docs.go:11:2: cannot find package "github.com/cpuguy83/go-md2man/v2/md2man" in any of:
/home/test/go/src/github.com/cpuguy83/go-md2man/v2/md2man (from $GOROOT)
/home/test/src/github.com/cpuguy83/go-md2man/v2/md2man (from $GOPATH)
../../../golang.org/x/sys/unix/affinity_linux.go:10:2: cannot find package "math/bits" in any of:
/home/test/go/src/math/bits (from $GOROOT)
/home/test/src/math/bits (from $GOPATH)