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按照这个使用 go-micro 的例子。当我执行 ago mod init github.com/username/blahblah后跟 go get -u 时，我在 go.mod 文件中得到了这个：

    require (
    github.com/coreos/etcd v3.3.21+incompatible // indirect
    github.com/coreos/go-systemd v0.0.0-20191104093116-d3cd4ed1dbcf // indirect
    github.com/fsnotify/fsnotify v1.4.9 // indirect
    github.com/gogo/protobuf v1.3.1 // indirect
    github.com/golang/protobuf v1.4.2
    github.com/imdario/mergo v0.3.9 // indirect
    github.com/micro/go-micro/v2 v2.7.0
    github.com/miekg/dns v1.1.29 // indirect
    github.com/nats-io/nats.go v1.10.0 // indirect
    go.uber.org/zap v1.15.0 // indirect
    golang.org/x/crypto v0.0.0-20200510223506-06a226fb4e37 // indirect
    golang.org/x/lint v0.0.0-20200302205851-738671d3881b // indirect
    golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2 // indirect
    golang.org/x/sys v0.0.0-20200519105757-fe76b779f299 // indirect
    golang.org/x/tools v0.0.0-20200520220537-cf2d1e09c845 // indirect
    google.golang.org/genproto v0.0.0-20200519141106-08726f379972 // indirect
    google.golang.org/grpc v1.29.1 // indirect
    gopkg.in/yaml.v2 v2.3.0 // indirect
    honnef.co/go/tools v0.0.1-2020.1.4 // indirect
)

它失败并显示此消息：

go: finding github.com/jbenet/go-context latest
go: finding go.uber.org/tools latest
# github.com/coreos/etcd/clientv3/balancer/resolver/endpoint
../../../../../go3p/pkg/mod/github.com/coreos/etcd@v3.3.21+incompatible/clientv3/balancer/resolver/endpoint/endpoint.go:114:78: undefined: resolver.BuildOption
../../../../../go3p/pkg/mod/github.com/coreos/etcd@v3.3.21+incompatible/clientv3/balancer/resolver/endpoint/endpoint.go:182:31: undefined: resolver.ResolveNowOption
# github.com/coreos/etcd/clientv3/balancer/picker
../../../../../go3p/pkg/mod/github.com/coreos/etcd@v3.3.21+incompatible/clientv3/balancer/picker/err.go:37:44: undefined: balancer.PickOptions
../../../../../go3p/pkg/mod/github.com/coreos/etcd@v3.3.21+incompatible/clientv3/balancer/picker/roundrobin_balanced.go:55:54: undefined: balancer.PickOptions

尝试构建go build main.go失败并显示相同的消息。

这看起来像来自 Java 的 .jar 地狱。罪魁祸首是go get。有没有办法go get解决这个问题？

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1 回答 1

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它是 go-micro 和 grpc 之间版本不一致的错误。大约一周前，我尝试按照您提到的教程进行操作，但遇到了同样的错误。如果您想修复上述错误，请按照链接下方的交互操作： https ://github.com/etcd-io/etcd/issues/11563 。

另外，由于版本不一致，我建议您只构建没有 go-micro 的 grpc 服务。

于 2020-05-21T23:59:33.727 回答