diff --git a/server/imserver_new/cs/cs.auto_gen.go b/server/imserver_new/cs/cs.auto_gen.go
index 41b19634..64912fd2 100644
--- a/server/imserver_new/cs/cs.auto_gen.go
+++ b/server/imserver_new/cs/cs.auto_gen.go
@@ -10,12 +10,6 @@ type CsNetMsgHandler f5.NetMsgHandler[MsgHandler];
 type MsgHandlerImpl struct {
 }
 
-func (this *SMLogin) Err(errCode int32, errMsg string) *SMLogin {
-	this.Errcode = proto.Int32(errCode)
-	this.Errmsg = proto.String(errMsg)
-	return nil
-}
-
 var handlers [2000]*CsNetMsgHandler
 
 func GetNetMsgHandler(msgId uint16) *CsNetMsgHandler {
@@ -527,6 +521,204 @@ func (this *SMSetJoinCond) GetNetMsgId() uint16 {
         return uint16(SMMessageIdE__SMSetJoinCond)
 }
 
+func (this *SMLogin) Err(errCode int32, errMsg string) *SMLogin {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMReconnect) Err(errCode int32, errMsg string) *SMReconnect {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSearchUser) Err(errCode int32, errMsg string) *SMSearchUser {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSearchUserByAccountId) Err(errCode int32, errMsg string) *SMSearchUserByAccountId {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMAddFriendRequest) Err(errCode int32, errMsg string) *SMAddFriendRequest {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMAcceptFriendRequest) Err(errCode int32, errMsg string) *SMAcceptFriendRequest {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMRejectFriendRequest) Err(errCode int32, errMsg string) *SMRejectFriendRequest {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMListPendingFriendRequest) Err(errCode int32, errMsg string) *SMListPendingFriendRequest {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMListFriend) Err(errCode int32, errMsg string) *SMListFriend {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMDeleteFriendShip) Err(errCode int32, errMsg string) *SMDeleteFriendShip {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMBlacklist) Err(errCode int32, errMsg string) *SMBlacklist {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMAddBlacklist) Err(errCode int32, errMsg string) *SMAddBlacklist {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMRemoveBlacklist) Err(errCode int32, errMsg string) *SMRemoveBlacklist {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMInviteFriendMsg) Err(errCode int32, errMsg string) *SMInviteFriendMsg {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMGuildInfo) Err(errCode int32, errMsg string) *SMGuildInfo {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMRecommendGuildList) Err(errCode int32, errMsg string) *SMRecommendGuildList {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMGetTopGuildsByTotalStars) Err(errCode int32, errMsg string) *SMGetTopGuildsByTotalStars {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMCreateGuild) Err(errCode int32, errMsg string) *SMCreateGuild {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMApplyToGuild) Err(errCode int32, errMsg string) *SMApplyToGuild {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMApplyList) Err(errCode int32, errMsg string) *SMApplyList {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMApprove) Err(errCode int32, errMsg string) *SMApprove {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMReject) Err(errCode int32, errMsg string) *SMReject {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMLeaveGuild) Err(errCode int32, errMsg string) *SMLeaveGuild {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMDismissMember) Err(errCode int32, errMsg string) *SMDismissMember {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSetMemberLevel) Err(errCode int32, errMsg string) *SMSetMemberLevel {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMGuildMembersList) Err(errCode int32, errMsg string) *SMGuildMembersList {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMDisband) Err(errCode int32, errMsg string) *SMDisband {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSearchGuilds) Err(errCode int32, errMsg string) *SMSearchGuilds {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMGuildLogs) Err(errCode int32, errMsg string) *SMGuildLogs {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSetName) Err(errCode int32, errMsg string) *SMSetName {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSetAvatar) Err(errCode int32, errMsg string) *SMSetAvatar {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSetNotice) Err(errCode int32, errMsg string) *SMSetNotice {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
+func (this *SMSetJoinCond) Err(errCode int32, errMsg string) *SMSetJoinCond {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+
 func init() {
 
         handlers[int(CMMessageIdE__CMPing)] = &CsNetMsgHandler{
@@ -985,4 +1177,4 @@ func init() {
                 },
         }
 
-}
+}
\ No newline at end of file
diff --git a/tools/pbtools/app.js b/tools/pbtools/app.js
index 95ff98ac..18e157e4 100644
--- a/tools/pbtools/app.js
+++ b/tools/pbtools/app.js
@@ -141,6 +141,31 @@ func (this *${item.name}) GetNetMsgId() uint16 {
 `;
         }
       });
+    this.csProtoPb.nested.cs.nestedArray.forEach(
+      (item) => {
+        if (item.name[0] == 'S' &&
+            item.name[1] == 'M') {
+          let hasErrCodeField = false;
+          let hasErrMsgField = false;
+          item.fieldsArray.forEach(
+            (item2) => {
+              if (item2.name == 'errcode') {
+                hasErrCodeField = true;
+              } else if (item2.name == 'errmsg') {
+                hasErrMsgField = true;
+              }
+            });
+          if (hasErrCodeField && hasErrMsgField) {
+            data += `
+func (this *${item.name}) Err(errCode int32, errMsg string) *${item.name} {
+        this.Errcode = proto.Int32(errCode)
+        this.Errmsg = proto.String(errMsg)
+        return this
+}
+`;
+          }
+        }
+      });
     data += `
 func init() {
 `;