go.mod file error

[ineedhelponmytest]

this is the output when running "go get github.com/PuerkitoBio/goquery":

go: go.mod file not found in current directory or any parent directory.
'go get' is no longer supported outside a module.
To build and install a command, use 'go install' with a version,
like 'go install example.com/cmd@latest'
For more information, see https://golang.org/doc/go-get-install-deprecation
or run 'go help get' or 'go help install'.

[mna]

See #422 (comment).