go get error

[KMACEL]

Bug Report

Environment

• CLI version : arduino-cli Version: 0.3.7-alpha.preview Commit: BuildDate: 2019-06-28 06:44:10.27600698 +0000 UTC
• Go version (if building from sources): go version go1.12.5 linux/amd64
• OS version : Ubuntu 16.04.6 LTS

Expected behavior

"go get -u github.com/arduino/arduino-cli" error
if "GO111MODULE = on" gets the following error.

# github.com/cpuguy83/go-md2man/md2man
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:11:16: undefined: blackfriday.EXTENSION_NO_INTRA_EMPHASIS
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:12:16: undefined: blackfriday.EXTENSION_TABLES
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:13:16: undefined: blackfriday.EXTENSION_FENCED_CODE
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:14:16: undefined: blackfriday.EXTENSION_AUTOLINK
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:15:16: undefined: blackfriday.EXTENSION_SPACE_HEADERS
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:16:16: undefined: blackfriday.EXTENSION_FOOTNOTES
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:17:16: undefined: blackfriday.EXTENSION_TITLEBLOCK
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/md2man.go:19:29: too many arguments to conversion to blackfriday.Markdown: blackfriday.Markdown(doc, renderer, extensions)
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/roff.go:19:9: cannot use &roffRenderer literal (type *roffRenderer) as type blackfriday.Renderer in return argument:
	*roffRenderer does not implement blackfriday.Renderer (missing RenderFooter method)
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/roff.go:102:11: undefined: blackfriday.LIST_TYPE_ORDERED
go/pkg/mod/github.com/cpuguy83/go-md2man@v1.0.10/md2man/roff.go:102:11: too many errors

[masci]

Hi @KMACEL
the problem is upstream, I think you might have this same issue as golang/go#32495 where you might have accidentally go get the wrong version of https://github.com/russross/blackfriday.

I've opened #284 to consolidate the mod state but at glance it won't help you if you have blackfriday v2 installed. Can you try again from a clean state and let us know if things are different with these new info?

[masci]

I'm closing since this seems to work now, feel free to reopen if you still have the issue

[rogercoll]

There's a problem with go-md2man@v1.0.10/md2man library. I have also found this in different projects, hope is solved soon.