diff --git a/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp b/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp
index b75d0a671b..6e0684fd3e 100644
--- a/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp
+++ b/cocos/editor-support/cocostudio/FlatBuffersSerialize.cpp
@@ -150,8 +150,8 @@ std::string FlatBuffersSerialize::serializeFlatBuffersWithXMLFile(const std::str
         return ".csd file doesn not exists ";
     }
     
-    ssize_t size;
-    std::string content =(char*)FileUtils::getInstance()->getFileData(inFullpath, "r", &size);
+    std::string content = FileUtils::getInstance()->getStringFromFile(inFullpath);
+    FileUtils::getInstance()->purgeCachedEntries();
     
     // xml parse
     tinyxml2::XMLDocument* document = new tinyxml2::XMLDocument();
@@ -1124,8 +1124,8 @@ FlatBufferBuilder* FlatBuffersSerialize::createFlatBuffersWithXMLFileForSimulato
 //        CCLOG(".csd file doesn not exists ");
     }
     
-    ssize_t size;
-    std::string content =(char*)FileUtils::getInstance()->getFileData(inFullpath, "r", &size);
+    std::string content = FileUtils::getInstance()->getStringFromFile(inFullpath);
+    FileUtils::getInstance()->purgeCachedEntries();
     
     // xml parse
     tinyxml2::XMLDocument* document = new tinyxml2::XMLDocument();