Installation error when I execute go get github.com/mattn/memo

[yyYank]

OS

macOS

Go version

go version go1.13.4 darwin/amd64

errror log

go get -u github.com/mattn/memo
# github.com/mattn/memo
/Users/yy_yank/go/src/github.com/mattn/memo/main.go:108:16: cannot use cli.BoolFlag literal (type cli.BoolFlag) as type cli.Flag in array or slice literal:
        cli.BoolFlag does not implement cli.Flag (Apply method has pointer receiver)
/Users/yy_yank/go/src/github.com/mattn/memo/main.go:112:18: cannot use cli.StringFlag literal (type cli.StringFlag) as type cli.Flag in array or slice literal:
        cli.StringFlag does not implement cli.Flag (Apply method has pointer receiver)
/Users/yy_yank/go/src/github.com/mattn/memo/main.go:148:16: cannot use cli.BoolFlag literal (type cli.BoolFlag) as type cli.Flag in array or slice literal:
        cli.BoolFlag does not implement cli.Flag (Apply method has pointer receiver)
/Users/yy_yank/go/src/github.com/mattn/memo/main.go:160:18: cannot use cli.StringFlag literal (type cli.StringFlag) as type cli.Flag in array or slice literal:
        cli.StringFlag does not implement cli.Flag (Apply method has pointer receiver)
/Users/yy_yank/go/src/github.com/mattn/memo/main.go:295:15: cannot use commands (type []cli.Command) as type []*cli.Command in assignment

Similar issue?

swaggo/swag#556

I tried to fix.
It seems to solve when modify dependency in Gopkg.toml.

OK:

[[constraint]]
  name = "github.com/urfave/cli"
-  version = "1.20.0"
+  version = "1.22.1"

NG:

[[constraint]]
  name = "github.com/urfave/cli"
-  version = "1.20.0"
+  version = "1.22.2"

[vaaaaanquish]

@mattn Hi.

I got the same problem.

• OS: macOS
• Version: go version > go version go1.13.5 darwin/amd64
• error log

$ go get -u github.com/mattn/memo
# github.com/mattn/memo
go/src/github.com/mattn/memo/main.go:108:16: cannot use cli.BoolFlag literal (type cli.BoolFlag) as type cli.Flag in array or slice literal:
	cli.BoolFlag does not implement cli.Flag (Apply method has pointer receiver)
go/src/github.com/mattn/memo/main.go:112:18: cannot use cli.StringFlag literal (type cli.StringFlag) as type cli.Flag in array or slice literal:
	cli.StringFlag does not implement cli.Flag (Apply method has pointer receiver)
go/src/github.com/mattn/memo/main.go:148:16: cannot use cli.BoolFlag literal (type cli.BoolFlag) as type cli.Flag in array or slice literal:
	cli.BoolFlag does not implement cli.Flag (Apply method has pointer receiver)
go/src/github.com/mattn/memo/main.go:160:18: cannot use cli.StringFlag literal (type cli.StringFlag) as type cli.Flag in array or slice literal:
	cli.StringFlag does not implement cli.Flag (Apply method has pointer receiver)
go/src/github.com/mattn/memo/main.go:295:15: cannot use commands (type []cli.Command) as type []*cli.Command in assignment

Thanks.

[mattn]

This is caused by drastic changes by github.com/urfave/cli. Could you please try

$ GO111MODULE=on go get -u github.com/mattn/memo

Or

$ go get -u github.com/urfave/cli
$ go get -u github.com/mattn/memo

[vaaaaanquish]

Thank you for response, and It moved. I'm going to be happy now :)

[squeuei]

Unfortunately, it didn't work on my environment.

OS and Go version

• OS: Debian GNU/Linux 10 (buster)
• Version: go version go1.11.6 linux/amd64

$  mkdir tmp && cd tmp && go mod init tmp && go get -u github.com/mattn/memo

Result

...
# github.com/shurcooL/github_flavored_markdown
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:71:7: const initializer blackfriday.EXTENSION_NO_INTRA_EMPHASIS | blackfriday.EXTENSION_TABLES | blackfriday.EXTENSION_FENCED_CODE | blackfriday.EXTENSION_AUTOLINK | blackfriday.EXTENSION_STRIKETHROUGH | blackfriday.EXTENSION_SPACE_HEADERS | blackfriday.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK is not a constant
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:71:20: undefined: blackfriday.EXTENSION_NO_INTRA_EMPHASIS
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:72:2: undefined: blackfriday.EXTENSION_TABLES
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:73:2: undefined: blackfriday.EXTENSION_FENCED_CODE
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:74:2: undefined: blackfriday.EXTENSION_AUTOLINK
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:75:2: undefined: blackfriday.EXTENSION_STRIKETHROUGH
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:76:2: undefined: blackfriday.EXTENSION_SPACE_HEADERS
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:77:2: undefined: blackfriday.EXTENSION_NO_EMPTY_LINE_BEFORE_BLOCK
../../.go/pkg/mod/github.com/shurcoo!l/[email protected]/main.go:93:2: undefined: blackfriday.Html

[mattn]

Please set GO111MODULE=on

[squeuei]

Thank you for reply.

No luck. Since it's a new computer, I deleted what are in $GOPATH and tmp directory which I made to go mod init. And then, I tried

GO111MODULE=on go get -u github.com/mattn/memo

(in newly made tmp directory with go mod init tmp)

It produced the same result.

[mattn]

I don't reproduce on Go tip.

[squeuei]

Hmm... that's strange. Now I've tried on another computer / linux distribution.

• OS: Fedora 31
• Go version: go version go1.13.5 linux/amd64

GO111MODULE=on go get -u github.com/mattn/memo

It was stopped at shurcoo!l/github_flavored_markdown too.

I'm an alien in Go ecosystem, so let me confirm. After the installation of golang from distribution's package manager, I set $GOPATH only and everything else is default. Is there anything I have to configure?

[mattn]

Probably it is related to shurcooL/markdownfmt#47

[squeuei]

Hi. I somehow found the way while it's quite dirty.

$ go get github.com/mattn/memo
$ GO111MODULE=on go get github.com/matn/memo

Of course the latter has to be executed in a folder with go.mod if I'm using go1.11 .
I'm not sure why it works and it seems to be too difficult to understand. Anyway my problem is solved.

Thank you for helping me.