go: cannot find GOROOT directory: /usr/local/opt/go/libexec

[newm4n]

@nagarajtrivedi

Hi all, I am Nagaraj Trivedi.
I am using the grule engine downloaded from the github. When tried building it I got the below error. Please let me know what could be the reason
~/go/grule-rule-engine$ make build
sed -i.origin.bak "s/1[ ]*<</int64(1) <</g" antlr/parser/grulev3/grulev3_parser.go
export GO111MODULE on;
go build ./...
go: cannot find GOROOT directory: /usr/local/opt/go/libexec
Makefile:9: recipe for target 'build' failed
make: *** [build] Error 2