diff --git a/.gitignore b/.gitignore
index a3c4eb3cc10..63b9e51e0dd 100644
--- a/.gitignore
+++ b/.gitignore
@@ -45,3 +45,4 @@ make_config.mk
 .vscode
 kvrocks2redis
 build
+.cache
\ No newline at end of file
diff --git a/src/config.cc b/src/config.cc
index cdd4f1fb410..d2515572279 100644
--- a/src/config.cc
+++ b/src/config.cc
@@ -440,7 +440,7 @@ void Config::initFieldCallback() {
         double cutoff = val / 100;
         return srv->storage_->SetColumnFamilyOption(trimRocksDBPrefix(k), std::to_string(cutoff));
       }},
-      {"rocksdb.level_compaction_dynamic_level_bytes", [this](Server* srv, const std::string &k,
+      {"rocksdb.level_compaction_dynamic_level_bytes", [](Server* srv, const std::string &k,
                                                         const std::string& v)->Status {
         if (!srv) return Status::OK();
         std::string level_compaction_dynamic_level_bytes = v == "yes" ? "true" : "false";
diff --git a/src/redis_zset.cc b/src/redis_zset.cc
index c7803a2935a..4e87aa6ccde 100644
--- a/src/redis_zset.cc
+++ b/src/redis_zset.cc
@@ -60,7 +60,7 @@ rocksdb::Status ZSet::Add(const Slice &user_key, uint8_t flags, std::vector<Memb
     // For example, we add members with `ZADD mykey 1 a 2 a` and `ZRANGE mykey 0 1`
     // return only one member(`a`) was expected but got the member `a` twice now.
     //
-    // The root cause of this issue was the score key  was composed by member and score,
+    // The root cause of this issue was the score key was composed by member and score,
     // so the last one can't overwrite the previous when the score was different.
     // A simple workaround was add those members with reversed order and skip the member if has added.
     if (added_member_keys.find(member_key) != added_member_keys.end()) {
diff --git a/src/scripting.cc b/src/scripting.cc
index 675e82920c7..7765262cbc2 100644
--- a/src/scripting.cc
+++ b/src/scripting.cc
@@ -776,7 +776,7 @@ std::string replyToRedisReply(lua_State *lua) {
  * by the non-error-trapping version of redis.pcall(), which is redis.call(),
  * this function will raise the Lua error so that the execution of the
  * script will be halted. */
-[[noreturn]] int raiseError(lua_State *lua) {
+[[noreturn]] void raiseError(lua_State *lua) {
   lua_pushstring(lua, "err");
   lua_gettable(lua, -2);
   lua_error(lua);
diff --git a/src/scripting.h b/src/scripting.h
index d0211849537..05f526870fc 100644
--- a/src/scripting.h
+++ b/src/scripting.h
@@ -65,7 +65,7 @@ const char *redisProtocolToLuaType_Bool(lua_State *lua, const char *reply, int t
 const char *redisProtocolToLuaType_Double(lua_State *lua, const char *reply);
 std::string replyToRedisReply(lua_State *lua);
 void pushError(lua_State *lua, const char *err);
-[[noreturn]] int raiseError(lua_State *lua);
+[[noreturn]] void raiseError(lua_State *lua);
 void sortArray(lua_State *lua);
 void setGlobalArray(lua_State *lua, const std::string &var, const std::vector<std::string> &elems);
 
diff --git a/tests/t_list_test.cc b/tests/t_list_test.cc
index 7a5a2e903a5..c43efe29f79 100644
--- a/tests/t_list_test.cc
+++ b/tests/t_list_test.cc
@@ -61,7 +61,7 @@ class RedisListLMoveTest : public RedisListTest {
     dst_fields_ = {"dst", "dst2", "dst3", "dst4"};
   }
 
-  void TearDown() {
+  void TearDown() override {
     list->Del(key_);
     list->Del(dst_key_);
   }