diff --git a/src/client/src/tscSql.c b/src/client/src/tscSql.c
index 4b78c5ed7a07779f735089c1b029f58dda32afce..e4344b4b10b172449e45ba369787899a375f82d1 100644
--- a/src/client/src/tscSql.c
+++ b/src/client/src/tscSql.c
@@ -28,6 +28,7 @@
 #include "tsocket.h"
 #include "ttimer.h"
 #include "tutil.h"
+#include "ihash.h"
 
 TAOS *taos_connect_imp(const char *ip, const char *user, const char *pass, const char *db, uint16_t port,
                        void (*fp)(void *, TAOS_RES *, int), void *param, void **taos) {
diff --git a/src/system/detail/src/mgmtShell.c b/src/system/detail/src/mgmtShell.c
index 50d972d6e0600e05a1b4fa8ff12f8aff3b581119..2872f5e7cac3f74a66d4853bc7c97def70563664 100644
--- a/src/system/detail/src/mgmtShell.c
+++ b/src/system/detail/src/mgmtShell.c
@@ -721,7 +721,7 @@ int mgmtProcessAlterUserMsg(char *pMsg, int msgLen, SConnObj *pConn) {
 
     if (hasRight) {
       memset(pUser->pass, 0, sizeof(pUser->pass));
-      taosEncryptPass(pAlter->pass, strlen(pAlter->pass), pUser->pass);
+      taosEncryptPass((uint8_t*)pAlter->pass, strlen(pAlter->pass), pUser->pass);
       code = mgmtUpdateUser(pUser);
       mLPrint("user:%s password is altered by %s, code:%d", pAlter->user, pConn->pUser->user, code);
     } else {
diff --git a/src/util/src/tsched.c b/src/util/src/tsched.c
index 4eefd2ad958cd6424cb92b4199d0c21821b56716..56d16eeb7196bebaf871615ed93f06b424079180 100644
--- a/src/util/src/tsched.c
+++ b/src/util/src/tsched.c
@@ -145,6 +145,8 @@ void *taosProcessSchedQueue(void *param) {
     else if (msg.tfp)
       (*(msg.tfp))(msg.ahandle, msg.thandle);
   }
+
+  return NULL;
 }
 
 int taosScheduleTask(void *qhandle, SSchedMsg *pMsg) {