编译出现下面错误，
github.com/coreos/etcd/clientv3
…/github.com/coreos/etcd/clientv3/auth.go:121:72: cannot use auth.callOpts (type []“github.com/coreos/etcd/vendor/google.golang.org/grpc”.CallOption) as type []“go.etcd.io/etcd/vendor/google.golang.org/grpc”.CallOption in argument to auth.remote.AuthEnable
…/github.com/coreos/etcd/clientv3/auth.go:126:74: cannot use auth.callOpts (type []“github.com/coreos/etcd/vendor/google.golang.org/grpc”.CallOption) as type []“go.etcd.io/etcd/vendor/google.golang.org/grpc”.CallOption in argument to auth.remote.AuthDisable
…/github.com/coreos/etcd/clientv3/auth.go:131:152: cannot use auth.callOpts (type []“github.com/coreos/etcd/vendor/google.golang.org/grpc”.CallOption) as type []“go.etcd.io/etcd/vendor/google.golang.org/grpc”.CallOption in argument to auth.remote.UserAdd
…/github.com/coreos/etcd/clientv3/auth.go:136:144: cannot use auth.callOpts (type []“github.com/coreos/etcd/vendor/google.golang.org/grpc”.CallOption) as type []“go.etcd.io/etcd/vendor/google.golang.org/grpc”.CallOption in argument to auth.remote.UserAdd
…/github.com/coreos/etcd/clientv3/auth.go:141:86: cannot use auth.callOpts (type []“github.com/coreos/etcd/vendor/google.golang.org/grpc”.CallOption) as type []“go.etcd.io/etcd/vendor/google.golang.org/grpc”.CallOption in argument to auth.remote.UserDelete
…/github.com/coreos/etcd/clientv3/auth.go:146:122: cannot use auth.callOpts (type []“github.com/coreos/etcd/vendor/google.golang.org/grpc”.CallOption) as type []“go.etcd.io/etcd/vendor/google.golang.org/grpc”.CallOption in argument to auth.remote.UserChangePassword
。。。。。。。。。。。。。。。
…/github.com/coreos/etcd/clientv3/auth.go:166:106: too many errors
网上找了很多方法都没解决，不过有篇文章说
在import的时候 应该import "go.etcd.io/etcd/clientv3" 而不是 "github.com/coreos/etcd/clientv3"
就可以了，问题是我代码里面没引用，如是我觉得肯定是库里面代码问题，先把引用库代码都找出
敲命令:cd $GOPATH/src 在go工作目录下，然后命令：
grep github.com/coreos/etcd/clientv3 -r ./github.com/micro
发现很多地方引用：github.com/coreos/etcd/clientv3
用sed批量替换成：go.etcd.io/etcd/clientv3
sed -i 's/github.com\/coreos\/etcd\/clientv3/go.etcd.io\/etcd\/clientv3/g' `grep github.com/coreos/etcd/clientv3 -rl ./github.com/micro` 然后问题解决
