獲取 go package gin 時(shí)無法識(shí)別的導(dǎo)入路徑。我該如何解決這個(gè)問題go get github.com/gin-gonic/ginpackage gopkg.in/go-playground/validator.v8: unrecognized import path "gopkg.in/go-playground/validator.v8" (https fetch: Get https://gopkg.in/go-playground/validator.v8?go-get=1: dial tcp: i/o timeout)package gopkg.in/yaml.v2: unrecognized import path "gopkg.in/yaml.v2" (https fetch: Get https://gopkg.in/yaml.v2?go-get=1: dial tcp: i/o timeout)