Libbeat syntax error logger.go

[gourmax]

I'm trying to install a package from beat community but I encounter a syntax error in some file from the github folder of elastic.

According to example on the elastic page, I cloned the elastic/beats directory.
I try to install metricbeat (the error is the same for other package) with:

go install github.com/elastic/beats/metricbeat

But I receive the following error

github.com/elastic/beats/libbeat/logp/logger.go:8: syntax error: unexpected = in type declaration

I don't know how what is the right declaration of this variable in logger.go.

[adrisr (Adrian Serrano)]

The version of Go that you are using is too old. You need at least Go 1.9.

You can check your go version with the go version command.