go/types:Config.Check找不到包

我正在使用

go/types

包作为解析go源代码的工具。我的代码如下所示：

packageName := "github.com/something/my-test-package"
imported, err := build.Default.Import(packageName, ".", build.FindOnly)
if err != nil {
    return nil, errors.Wrapf(err, "Error importing package %s", packageName)
}

packages, err := parser.ParseDir(fileSet, imported.Dir, nil, 0)
if err != nil {
    return nil, errors.Wrapf(err, "Error parsing package %s", packageName)
}

for _, astPkg := range packages {
    var files []*ast.File
    for _, file := range astPkg.Files {
        files = append(files, file)
    }

    info := &types.Info{
        Defs: make(map[*ast.Ident]types.Object),
    }

    conf := types.Config{
        Importer: importer.ForCompiler(fileSet, "source", nil),
    }

    _, err := conf.Check(packageName, fileSet, files, info)
    if err != nil {
        panic(err) // Panics here
    }
}

在上面的例子中，我从conf.Check中得到一个错误，即使我的代码构建得很好。错误是：

panic: /Users/home/Dev/my-test-package/bindings/bindings.go:6:2: could not import github.com/something/my-test-package/prototype (type-checking package "github.com/something/my-test-package/prototype" failed (/Users/home/Dev/my-test-package/prototype/basic.go:3:8: could not import <omitted> could not import github.com/golang/protobuf/ptypes/wrappers (type-checking package "github.com/golang/protobuf/ptypes/wrappers" failed (/Users/home/go/pkg/mod/github.com/golang/protobuf@v1.2.0/ptypes/wrappers/wrappers.pb.go:6:14: could not import github.com/golang/protobuf/proto (cannot find package "github.com/golang/protobuf/proto" in any of:
    /usr/local/go/src/github.com/golang/protobuf/proto (from $GOROOT)
    /Users/home/go/src/github.com/golang/protobuf/proto (from $GOPATH))))))))))))))))

panic:/Users/home/Dev/my-test-package/bindings/bindings.go:6:2:无法导入github.com/something/my-test-package/prototype（类型检查包“github.com/something/my-test-package/prototype”失败（/Users/home/Dev/my-test-package/prototype/basic.go:3:8:无法导入无法导入github.com/golang/protobuf/ptypes/wrappers）（类型检查包“github.com/golang/protobuf/ptypes/wrappers”失败（/Users/home/go/pkg/mod/github.com/golang）/protobuf@v1.2.0/ptypes/wrappers/wrappers.pb.go:6:14:无法导入github.com/golang/protobuf/proto（在以下任何一个文件中找不到包“github.com/golang/protobuf/proto”：
/usr/local/go/src/github.com/golang/protobuf/proto（来自$GOROOT）
/Users/home/go/src/github.com/golang/protobuf/proto（来自$GOPATH‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘‘

最终错误是：

无法导入github.com/golang/protobuf/proto

---

如果我从同一个包运行

go list-f'{.Dir}}'github.com/golang/protobuf/proto

，我会得到

/Users/home/go/pkg/mod/github.com/golang/protobuf@v1.3.1/proto

，因此该软件包显然可用。我，但我想我也会在这里发布，以防我做了一些明显错误的事情

这似乎是一个已知问题，或与已知问题相关：

---

有几个与这个问题有关。

不过我正在使用内置的

go/types

包。我想这应该适用于围棋模块。