1. 报错

go: golang.org/x/crypto@v0.0.0-20190701094942-4def268fd1a4: unrecognized import path "golang.org/x/crypto" (https fetch: Get https://golang.org/x/crypto?go-get=1: dial tcp 216.239.37.1:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)

原因：被墙了，没有梯子的话，自行git clone

在GOPATH路径下新建文件路径：（Linux同理）

D:developgo_pathsrcgolang.orgx

然后进入x的目录下执行git clone

git clone https://github.com/golang/crypto.git

2. 报错

	imports golang.org/x/net/idna: unrecognized import path "golang.org/x/net/idna" (https fetch: Get https://golang.org/x/net/idna?go-get=1: dial tcp 216.239.37.1:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)
package github.com/golang/crypto/argon2
	imports golang.org/x/sys/cpu: unrecognized import path "golang.org/x/sys/cpu" (https fetch: Get https://golang.org/x/sys/cpu?go-get=1: dial tcp 216.239.37.1:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)
package github.com/golang/crypto/ssh/terminal
	imports golang.org/x/sys/windows: unrecognized import path "golang.org/x/sys/windows" (https fetch: Get https://golang.org/x/sys/windows?go-get=1: dial tcp 216.239.37.1:443: connectex: A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond.)

设置代理：

export GOPROXY=https://goproxy.io

idea配置代理：

地址：https://goproxy.io