默认使用的是proxy.golang.org,在国内无法访问,如下图所示:

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bogon:demo-path user$ make build_darwin
rm -rf target/demo-0.6.0
mkdir -p target/demo-0.6.0/bin
env CGO_ENABLED=1 GO111MODULE=on go run build/spec.go target/demo-0.6.0/bin/demo-spec-0.6.0.yaml
go: github.com/StackExchange/wmi@v0.0.0-20190523213315-cbe66965904d: Get "https://proxy.golang.org/github.com/%21stack%21exchange/wmi/@v/v0.0.0-20190523213315-cbe66965904d.mod": dial tcp 34.64.4.17:443: i/o timeout
make: *** [build_yaml] Error 1
bogon:demo-path user$ make build_darwin

解决方法:

换一个国内能访问的代理地址:https://goproxy.cn
执行命令:

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go env -w GOPROXY=https://goproxy.cn