我想搭个开源论坛，找到一个基于 GO 的，但按步骤下来卡在 DEP 下载依赖的那部

开源论坛地址 https://github.com/shen100/golang123 有一步是下载依赖，工程里面自带的 2 个 Gopkg.lock 和 Gopkg.toml 在开源里已经自带了，但按步骤执行 dep ensure 一直卡着不动是为什么，请高手赐教。

[go@elasticsearch1 golang123]$ dep ensure Warning: the following project(s) have [[constraint]] stanzas in Gopkg.toml:

✗ github.com/asaskevich/govalidator ✗ github.com/gin-contrib/sessions

However, these projects are not direct dependencies of the current project: they are not imported in any .go files, nor are they in the 'required' list in Gopkg.toml. Dep only applies [[constraint]] rules to direct dependencies, so these rules will have no effect.

Either import/require packages from these projects so that they become direct dependencies, or convert each [[constraint]] to an [[override]] to enforce rules on these projects, if they happen to be transitive dependencies.