can't build main.go

[clay-027]

when I try to install this using git clone and try to build the main.go I got this message

go run main.go

command-line-arguments

./main.go:31:3: undefined: fetchCertSpotter
./main.go:32:3: undefined: fetchHackerTarget
./main.go:33:3: undefined: fetchThreatCrowd
./main.go:34:3: undefined: fetchCrtSh
./main.go:35:3: undefined: fetchFacebook
./main.go:37:3: undefined: fetchVirusTotal
./main.go:38:3: undefined: fetchFindSubDomains
./main.go:39:3: undefined: fetchUrlscan
./main.go:40:3: undefined: fetchBufferOverrun
./main.go:47:8: undefined: newRateLimiter
./main.go:47:8: too many errors

[clay-027]

I'm finally getting assetfinder bin file inside go dir in home path.
sorry that's my bad😅✌️