How to fix parsing go.mod module declares its path as "x" but was required as "y"

I am working on a go project, which has a dependency on original-project. I now want to change the behavior in this project by modifying original-project. So I cloned github.com/y/original-project to github.com/x/my-version and replaced all occurrence of github.com/y/original-project with github.com/x/my-version (including in mod.go).

But I keep getting this error:

go: github.com/x/my-version@v0.5.2: parsing go.mod:
    module declares its path as: github.com/y/original-project
            but was required as: github.com/x/my-version

Even when I run go get -u -v -f all or github.com/x/my-version

What could I be doing wrong?

I think the problem comes from the fact that the go.mod of your cloned version of original-project still says module github.com/y/original-project. You should use the go.mod replace directive. It is meant for cases like yours exactly.

replace github.com/y/original-project => /path/to/x/my-version

Stack Overflow Q#61311436, score: 61