Estaremos instalando el paquete de Smali2Java (https://github.com/AlexeySoshin/smali2java) para decompilar…

Y al hacer:

go build

smali2java.go:7:2: cannot find package «github.com/alexeysoshin/smali2java/parser» in any of:
/usr/local/go/src/github.com/alexeysoshin/smali2java/parser (from $GOROOT)
/Users/kikebeltran/go/src/github.com/alexeysoshin/smali2java/parser (from $GOPATH)

Tendrás que mover el contenido del paquete descargado a la carpeta:
/Users//go/src/github.com/alexeysoshin/smali2java

Y ahora, te mueves a esa carpeta

/Users//go/src/github.com/alexeysoshin/smali2java

y ya podrás ejecutar:

go build