unable to install mockgen following the instructions in README

[dmitris]

I'm unable to install mockgen following the instructions in https://github.com/golang/mock#installation:

$ go get -v github.com/golang/mock/gomock
github.com/golang/mock (download)
created GOPATH=/home/dmitris/go; see 'go help gopath'
github.com/golang/mock/gomock
$ go install -v github.com/golang/mock/mockgen
go/src/github.com/golang/mock/mockgen/parse.go:34:2: cannot find package "golang.org/x/tools/go/packages" in any of:
	/usr/local/go/src/golang.org/x/tools/go/packages (from $GOROOT)
	/home/dmitris/go/src/golang.org/x/tools/go/packages (from $GOPATH)

To make go install work, I had to also run:
go get -v golang.org/x/tools/go/packages. Alternatively, the following command works:
go get -v -u github.com/golang/mock/mockgen - maybe we could use it instead of the current pair of go get and go install?

go version output: go version go1.12.6 linux/amd64

[poy]

Thanks for finding this!

I think this should be updated to a single step:

go get github.com/golang/mock/mockgen

We should probably also suggest you set GO111MODULE=on so that you use the go.mod file to grab the correct dependencies.

[ashu171996]

Mockgen is supported on above Go version < 1.16 Reference https://github.com/golang/mock#go-version--116

[codyoss]

@ashu171996 mockgen currently works with 1.11+.

[dmitris]

the current installation instructions work fine for me, thanks

[Houari-ym]

Mockgen not working for me using: go install github.com/golang/mock/mockgen@v1.6.0 i have Go ver:
go version go1.18 linux/amd64, even when i run which mockgen No result

[jamestunnell]

Mockgen not working for me using: go install github.com/golang/mock/mockgen@v1.6.0 i have Go ver: go version go1.18 linux/amd64, even when i run which mockgen No result

I had the same problem, and I just needed to make sure that $GOPATH/bin was being added to $PATH.

[seda1094]

add export PATH=$PATH:$(go env GOPATH)/bin in .zshrc and try again