iris 安装 报错 是啥没有装好吗

../../../go/src/github.com/kataras/iris/context/gzip_response_writer.go:8:2: cannot find package "github.com/klauspost/compress/gzip" in any of: /usr/local/Cellar/go/1.12.5/libexec/src/github.com/klauspost/compress/gzip (from $GOROOT) /Users/alex.zhu/go/src/github.com/klauspost/compress/gzip (from $GOPATH) ../../../go/src/github.com/kataras/iris/core/netutil/tcp.go:12:2: cannot find package "golang.org/x/crypto/acme/autocert" in any of: /usr/local/Cellar/go/1.12.5/libexec/src/golang.org/x/crypto/acme/autocert (from $GOROOT) /Users/alex.zhu/go/src/golang.org/x/crypto/acme/autocert (from $GOPATH) ../../../go/src/github.com/microcosm-cc/bluemonday/sanitize.go:40:2: cannot find package "golang.org/x/net/html" in any of: /usr/local/Cellar/go/1.12.5/libexec/src/golang.org/x/net/html (from $GOROOT) /Users/alex.zhu/go/src/golang.org/x/net/html (from $GOPATH) ../../../go/src/github.com/Shopify/goreferrer/rich_url.go:7:2: cannot find package "golang.org/x/net/publicsuffix" in any of: /usr/local/Cellar/go/1.12.5/libexec/src/golang.org/x/net/publicsuffix (from $GOROOT) /Users/alex.zhu/go/src/golang.org/x/net/publicsuffix (from $GOPATH) ../../../go/src/github.com/kataras/iris/context/i18n.go:3:8: cannot find package "golang.org/x/text/language" in any of: /usr/local/Cellar/go/1.12.5/libexec/src/golang.org/x/text/language (from $GOROOT) /Users/alex.zhu/go/src/golang.org/x/text/language (from $GOPATH)