diff --git a/source/client/src/clientMsgHandler.c b/source/client/src/clientMsgHandler.c
index 6d53f2b4c51f1845de00150d7bfa54eacc2e591b..d6fdb29b59d5cdf1c8f2c918a426faec19791a34 100644
--- a/source/client/src/clientMsgHandler.c
+++ b/source/client/src/clientMsgHandler.c
@@ -77,6 +77,7 @@ int32_t processConnectRsp(void* param, SDataBuf* pMsg, int32_t code) {
   }
 
   if ((code = taosCheckVersionCompatibleFromStr(version, connectRsp.sVer, 3)) != 0) {
+    tscError("version not compatible. client version: %s, server version: %s", version, connectRsp.sVer);
     setErrno(pRequest, code);
     tsem_post(&pRequest->body.rspSem);
     goto End;
diff --git a/source/dnode/mnode/impl/src/mndProfile.c b/source/dnode/mnode/impl/src/mndProfile.c
index 460e75b42235d243f85996facef5919dd14290e9..06bb46772aee20a7049c5ce47e1b54756911f14c 100644
--- a/source/dnode/mnode/impl/src/mndProfile.c
+++ b/source/dnode/mnode/impl/src/mndProfile.c
@@ -227,6 +227,7 @@ static int32_t mndProcessConnectReq(SRpcMsg *pReq) {
   }
 
   if ((code = taosCheckVersionCompatibleFromStr(connReq.sVer, version, 3)) != 0) {
+    mGError("version not compatible. client version: %s, server version: %s", connReq.sVer, version);
     terrno = code;
     goto _OVER;
   }