diff --git a/general/src/pattern/Observer.hpp b/general/src/pattern/Observer.hpp
index d909968..fae7c56 100644
--- a/general/src/pattern/Observer.hpp
+++ b/general/src/pattern/Observer.hpp
@@ -27,6 +27,7 @@ public:
 private:
 
 };
+
 template<typename T>
 int Observed<T>::AddObserver(Observer<T> *p) {
     if(nullptr == p){
@@ -42,6 +43,7 @@ int Observed<T>::AddObserver(Observer<T> *p) {
     this->m_vObservers.push_back(p);
     return 0;
 }
+
 template<typename T>
 int Observed<T>::DeleteObserver(Observer<T> *p) {
     for(typename  std::vector<Observer<T>*>::iterator itr = m_vObservers.begin();
@@ -63,4 +65,5 @@ int Observed<T>::NoticeObserver(T *p) {
     }
     return 0;
 }
+
 #endif //GENERAL_OBSERVER_H
diff --git a/general/src/pattern/ringbuffer.hpp b/general/src/pattern/ringbuffer.hpp
index 7dffc63..6e381c2 100644
--- a/general/src/pattern/ringbuffer.hpp
+++ b/general/src/pattern/ringbuffer.hpp
@@ -11,7 +11,7 @@ public:
     T At(uint64_t pos);
     RingBuffer(uint64_t size);
     int Add(T *data,uint64_t len);
-    int Take(T *data,uint64_t data);
+    int Take(T *data,uint64_t len);
     uint32_t CanReadCount();
     uint32_t CanWriteCount();
     ~RingBuffer();
@@ -48,6 +48,9 @@ T RingBuffer<T>::At(uint64_t pos){
 
 template<typename T>
 int RingBuffer<T>::Add(T *data,uint64_t len){
+    if(data == nullptr){
+        return -1;
+    }
     /// 0->n |start|head|.....|tail|
     if(mCurrentTail > mCurrentHead){
         if(mCurrentTail + len > mSize - 1){
@@ -60,6 +63,10 @@ int RingBuffer<T>::Add(T *data,uint64_t len){
         }
     }
 }
+template<typename T>
+int  RingBuffer<T>::Take(T *data,uint64_t len){
+    
+}
 
 template<typename T>
 uint32_t RingBuffer<T>::CanReadCount(){
diff --git a/test/src/cpp11/conanfile.txt b/test/src/cpp11/conanfile.txt
index 852c13c..6093c3c 100644
--- a/test/src/cpp11/conanfile.txt
+++ b/test/src/cpp11/conanfile.txt
@@ -1,4 +1,4 @@
 [requires]
-jsoncpp/1.1.1
+lua/1.1.1
 [imports]
 .,* -> ./third @ folder=True, ignore_case=True, excludes=*.html *.jpeg
\ No newline at end of file