can not run...

[ahu]

./badger-cli.go:77:29: undefined: badger.KV
./badger-cli.go:85:12: undefined: badger.KVItem
./badger-cli.go:133:24: undefined: badger.KV
./badger-cli.go:149:25: undefined: badger.KV
./badger-cli.go:192:5: opt.Dir undefined (type func(string) badger.Options has no field or method Dir)
./badger-cli.go:193:5: opt.ValueDir undefined (type func(string) badger.Options has no field or method ValueDir)
./badger-cli.go:195:13: undefined: badger.NewKV
./badger-cli.go:206:40: opt.Dir undefined (type func(string) badger.Options has no field or method Dir)