如何解决Go项目中嵌套应用程序二进制文件中的依赖项？

Question

This sounds stupid, but I am trying for build my new golang project for a while now and I am stuck with following error

can't load package: package github.com/kuskmen/yamq/cmd/yamq-client: found packages main (main.go) and yamqclient (yamq-client.go) in C:\projects\yamq\cmd\yamq-client

I know this should be straightforward to fix, but I come from .NET and I am still not experienced in Go projects and its dependency resolution model hence the struggle.

My project structure looks like so

/yamq
    /cmd
        /yamq-client          // yamq client application binary
            main.go           // package main
            yamq-client.go    // package yamqclient
        /yamq-server          // yamq server application binary
            main.go           // package main
            yamq-server.go    // package yamqserver
    go.mod                // contains only "module github.com/kuskmen/yamq" for now
    ... // some library files that will probably be moved to /shared folder

so far so good, when I do go build in outermost directory ( /yamq ) it is building successfully (or at least it is not showing any errors), but when I try to build either yamq-client or yamq-server binaries I get the aforementioned error and every time I try to google it or find something useful I got some old article or answer that dates back 2013-2016 that suggests something about $GOPATH and etc which shouldn't be the case here since I am trying to use go modules.

Help a fellow .NET developer join Go community by explaining him how exactly modules work cause I found this and this useless or at least I am missing the point, thanks in advance!

Answer 1

To follow up from my comment above:

From https://golang.org/doc/code.html:

• Go programmers typically keep all their Go code in a single workspace.
• A workspace contains many version control repositories (managed by Git, for example).
• Each repository contains one or more packages.
• Each package consists of one or more Go source files in a single directory.
• The path to a package's directory determines its import path.