go版本升級到1.17.1后，go mod tidy 時候 etcd依賴報錯：

go: common/modules/etcd imports
    go.etcd.io/etcd/clientv3 tested by
    go.etcd.io/etcd/clientv3.test imports
    github.com/coreos/etcd/auth imports
    github.com/coreos/etcd/mvcc/backend imports
    github.com/coreos/bbolt: github.com/coreos/bbolt@v1.3.6: parsing go.mod:
    module declares its path as: go.etcd.io/bbolt
            but was required as: github.com/coreos/bbolt

于是求助于網(wǎng)絡(luò)，很多文章比較老舊，提供辦法如下（仍不能解決）：

go mod init
 
go mod edit -replace github.com/coreos/bbolt@v1.3.4=go.etcd.io/bbolt@v1.3.4
 
go mod edit -replace google.golang.org/grpc@v1.29.1=google.golang.org/grpc@v1.26.0
 
go mod tidy

最后，經(jīng)過通過升級Etcd依賴版本解決，正確方法如下：

1. 更新etcd依賴引入路徑

   # 替換之前
   import(
       "go.etcd.io/etcd/clientv3"
   )
   # 替換之后
   import(
       "go.etcd.io/etcd/client/v3"
   )
   

2. 執(zhí)行命令

   rm go.mod go.sum
   go mod init main
   go mod tidy
   go build .
   

之后go.mod中依賴大概是：

require (
    go.etcd.io/etcd/client/pkg/v3 v3.5.0 // indirect
    go.etcd.io/etcd/client/v3 v3.5.0 // indirect  
    google.golang.org/grpc v1.38.0 // indirect
)

總結(jié)：因為etcd v3版本接口和最新的grpc兼容，所以不用再像網(wǎng)上歷史文章那樣去處理，直接替換etcd包地址即可。