Installation failure

[OldManMeta]

Hi, just following your installation instructions and I get an error:

'.' is not recognized as an internal or external command,
operable program or batch file.

I cloned into a local folder:

I then installed go - latest version:
go version go1.19 windows/amd64

I ran the instructions under "SFU with json-rpc signaling"
This command in prompt within the ion-sfu folder:

go build ./cmd/signal/grpc/main.go && ./main -c config.toml

These are the last lines of the download:

go: downloading google.golang.org/genproto v0.0.0-20210828152312-66f60bf46e71 '.' is not recognized as an internal or external command, operable program or batch file.

What did you expect?

No error

What happened?

Got an error