gocolly dependencies failing

[srinisubra]

Hi there, first of a ll, thank you for sharing the code. I am new to GO and trying to use your dzone-refcardz-downloader. Trying to install gocolly by issuing
go get -u -v github.com/gocolly/colly/...

But getting the below error. Do you have any suggestion?

github.com/jawher/mow.cli (download)
github.com/gocolly/colly

github.com/gocolly/colly

src/github.com/gocolly/colly/colly.go:502: parsedURL.Hostname undefined (type *url.URL has no field or method Hostname)
src/github.com/gocolly/colly/colly.go:549: req.GetBody undefined (type *http.Request has no field or method GetBody)
src/github.com/gocolly/colly/colly.go:556: req.GetBody undefined (type *http.Request has no field or method GetBody)
src/github.com/gocolly/colly/colly.go:563: req.GetBody undefined (type *http.Request has no field or method GetBody)
src/github.com/gocolly/colly/colly.go:568: req.GetBody undefined (type *http.Request has no field or method GetBody)
src/github.com/gocolly/colly/colly.go:569: undefined: http.NoBody
src/github.com/gocolly/colly/colly.go:570: req.GetBody undefined (type *http.Request has no field or method GetBody)
src/github.com/gocolly/colly/colly.go:570: undefined: http.NoBody
src/github.com/gocolly/colly/colly.go:1154: req.URL.Hostname undefined (type *url.URL has no field or method Hostname)

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[steffi1]

What I've done here so far as to

go mod init github.com/luckylittle/dzone-refcardz-downloader (this generates go.mod)
go get (downloads the referenced packages/modules)
go run main.go .

then when this is down you'll have a downloads file with .pdf files however those .pdf files are all the same size and only contain html.