go module #latest found but does not contain package - go

Question

I'm trying to make use of go module for the first time. What exactly the following error message is telling me?
module github.com/mkideal/cli#latest found (v0.2.2), but does not contain package github.com/mkideal/cli
module github.com/mkideal/cli#latest found (v0.2.2), but does not contain package github.com/mkideal/cli/ext
It happens during go build, whereas go get is just fine:
$ go get -v github.com/mkideal/cli
go: github.com/mkideal/cli upgrade => v0.2.2
but not go get -v ./..., which gave me the same error as above. My proxy setting looks OK:
$ go env | grep GOPROXY
GOPROXY="https://proxy.golang.org,direct"
Is it a problem of the go module/package I'm trying to use, or my own code's problem? -- I took a look at
https://github.com/mkideal/cli/blob/master/go.mod and it seems fine to me.
See the following update for details.
How can I overcome the situation? (I'm getting the same error message for my own repo as well)
UPDATE:
Here is the full log how I'm getting the above error:
prepare /tmp/015-file from https://github.com/mkideal/cli/blob/master/_examples/015-file
do go mod init
then go build
Now the details:
$ cd /tmp/015-file
$ GO111MODULE=on
$ go mod init github.com/mkideal/cli/015-file
go: creating new go.mod: module github.com/mkideal/cli/015-file
$ cat go.mod
module github.com/mkideal/cli/015-file
go 1.14
$ go build
go: finding module for package github.com/mkideal/cli
go: finding module for package github.com/mkideal/cli/ext
main.go:6:2: module github.com/mkideal/cli#latest found (v0.2.2), but does not contain package github.com/mkideal/cli
main.go:7:2: module github.com/mkideal/cli#latest found (v0.2.2), but does not contain package github.com/mkideal/cli/ext
$ go get -v github.com/mkideal/cli
go: github.com/mkideal/cli upgrade => v0.2.2
$ go get -v ./...
go: finding module for package github.com/mkideal/cli
go: finding module for package github.com/mkideal/cli/ext
go: finding module for package github.com/mkideal/cli
go: finding module for package github.com/mkideal/cli/ext
main.go:6:2: module github.com/mkideal/cli#latest found (v0.2.2), but does not contain package github.com/mkideal/cli
main.go:7:2: module github.com/mkideal/cli#latest found (v0.2.2), but does not contain package github.com/mkideal/cli/ext
$ go version
go version go1.14.1 linux/amd64

Answer 1

Try clearing cache:
go clean -modcache
For more info on how this command works, use go help clean

Answer 2

In my case cleaning cache didn't help.
Running go install in a project root printed no Go files in ... and that was the root cause, in the same time running go install gitlab.com/.... printed info about a missing package.
What had to be done was creating a go file in a project root directory with main function.

Answer 3

Update to go version go1.14.3 linux/amd64
Clear go module cache
don't know which one solved the problem (or both), now AOK.

Answer 4

I had the same error, but in my case I was attempting to import a module that made available only resource files, and no go pkgs. Adding an empty go file in the module with a package declaration solved it.

Answer 5

In my case, go.mod files were under src, after moving the go.mod file into one level up, then it works
Refer the Samples below,
directory structure when "package not found" error
dir1/src/
main.go
go.mod
go.sum
directory structure after fix
dir1/
go.mod
go.sum
src/
main.go

Answer 6

I had a similar problem. In my case the package name was not matching the name of the folder it resided in.