diff --git a/include/resource_append.h b/include/resource_append.h
index 593d291..453e9ce 100644
--- a/include/resource_append.h
+++ b/include/resource_append.h
@@ -34,6 +34,10 @@ public:
 private:
     bool Combine(const std::string &folderPath);
     bool ScanResources(const std::string &resourcePath, const std::string &outputPath);
+    bool ScanSubResources(const FileEntry entry, const std::string &resourcePath,
+                            const std::string &outputPath);
+    bool ScanSubLimitkeyResources(const FileEntry entry, const std::string &resourcePath,
+                            const std::string &outputPath);
     bool ScanIegalResources(const std::string &resourcePath, const std::string &outputPath);
     bool ScanLimitKey(const std::unique_ptr<FileEntry> &entry, const std::string &limitKey,
                     const std::string outputPath);
diff --git a/src/increment_list.cpp b/src/increment_list.cpp
index 9c4dd4f..839b104 100644
--- a/src/increment_list.cpp
+++ b/src/increment_list.cpp
@@ -101,9 +101,8 @@ int32_t IncrementList::GetPriority(const string &filePath) const
 
 bool IncrementList::ParseSegment(const string &filePath, vector<string> &segments) const
 {
-    for (const auto &it : FileEntry::FilePath(filePath).GetSegments()) {
-        segments.push_back(it);
-    }
+    vector<string> segs = FileEntry::FilePath(filePath).GetSegments();
+    copy(segs.begin(), segs.end(), back_inserter(segments));
 
     if (segments.size() >= (SEG_RESOURCE + 1) && segments[SEG_RESOURCE] != RESOURCES_DIR) {
         cerr << "Error: '" << filePath << "' don't contain '" << RESOURCES_DIR << "'" << endl;
diff --git a/src/reference_parser.cpp b/src/reference_parser.cpp
index 68ffb2a..d3f17db 100644
--- a/src/reference_parser.cpp
+++ b/src/reference_parser.cpp
@@ -298,8 +298,6 @@ bool ReferenceParser::ParseRefImpl(string &key, const map<string, ResType> &refs
             int32_t id = idWorker_.GetId(ref.second, name);
             if (isSystem) {
                 id = idWorker_.GetSystemId(ref.second, name);
-            } else {
-                id = idWorker_.GetId(ref.second, name);
             }
             if (id < 0) {
                 cerr << "Error: ref '" << key << "' don't be defined." << endl;
diff --git a/src/resource_append.cpp b/src/resource_append.cpp
index 88f3771..8a066a4 100644
--- a/src/resource_append.cpp
+++ b/src/resource_append.cpp
@@ -135,6 +135,11 @@ bool ResourceAppend::ScanResources(const string &resourcePath, const string &out
         return ScanSingleFile(resourcePath, outputPath);
     }
 
+    return ScanSubResources(entry, resourcePath, outputPath);
+}
+
+bool ResourceAppend::ScanSubResources(const FileEntry entry, const string &resourcePath, const string &outputPath)
+{
     vector<KeyParam> keyParams;
     if (KeyParser::Parse(entry.GetFilePath().GetFilename(), keyParams)) {
         for (const auto &child : entry.GetChilds()) {
@@ -152,6 +157,12 @@ bool ResourceAppend::ScanResources(const string &resourcePath, const string &out
         return ScanIegalResources(resourcePath, outputPath);
     }
 
+    return ScanSubLimitkeyResources(entry, resourcePath, outputPath);
+}
+
+bool ResourceAppend::ScanSubLimitkeyResources(const FileEntry entry, const string &resourcePath,
+    const string &outputPath)
+{
     for (const auto &child : entry.GetChilds()) {
         string limitKey = child->GetFilePath().GetFilename();
         if (ResourceUtil::IsIgnoreFile(limitKey, child->IsFile())) {
@@ -526,6 +537,10 @@ bool ResourceAppend::LoadResourceItemFromMem(const char buffer[], int32_t length
                 return false;
             }
 
+            if (!ResourceUtil::FileExist(filePathStr)) {
+                continue;
+            }
+
             if (!ResourceUtil::CopyFleInner(filePathStr, outPath.Append(data).GetPath())) {
                 return false;
             }
diff --git a/src/resource_pack.cpp b/src/resource_pack.cpp
index 6fa33e9..54d4e08 100644
--- a/src/resource_pack.cpp
+++ b/src/resource_pack.cpp
@@ -92,14 +92,14 @@ uint32_t ResourcePack::InitModule()
             });
         if (it == moduleNames.end()) {
             string buffer(" ");
-            for_each(moduleNames.begin(), moduleNames.end(), [&buffer](auto &iter) {
+            for_each(moduleNames.begin(), moduleNames.end(), [&buffer](const auto &iter) {
                     buffer.append(" " + iter + " ");
                 });
             cerr << "Error: module name '" << moduleName_ << "' not in [" << buffer << "]" << endl;
             return RESTOOL_ERROR;
         }
 
-        int32_t startId = ((it - moduleNames.begin()) + 1) * 0x01000000;
+        startId = ((it - moduleNames.begin()) + 1) * 0x01000000;
         if (startId >= 0x07000000) {
             startId = startId + 0x01000000;
         }