diff --git a/src/BowVector.h b/src/BowVector.h
index d8c17e0..2170b5e 100644
--- a/src/BowVector.h
+++ b/src/BowVector.h
@@ -12,6 +12,10 @@
 
 #include <map>
 #include <vector>
+#include <ostream>
+#include <istream>
+#include <string>
+#include <cstdint>
 #include "exports.h"
 #if _WIN32
 #include <cstdint>
diff --git a/src/FeatureVector.h b/src/FeatureVector.h
index f06bc1e..99d702b 100644
--- a/src/FeatureVector.h
+++ b/src/FeatureVector.h
@@ -11,6 +11,7 @@
 #define __D_T_FEATURE_VECTOR__
 
 #include "BowVector.h"
+#include <ostream>
 #include <map>
 #include <vector>
 #include "exports.h"
diff --git a/src/Vocabulary.cpp b/src/Vocabulary.cpp
index 9f0eff3..accbd68 100644
--- a/src/Vocabulary.cpp
+++ b/src/Vocabulary.cpp
@@ -1177,7 +1177,7 @@ void Vocabulary::save(cv::FileStorage &f,
 
 }
 
-void Vocabulary::toStream(  std::ostream &out_str, bool compressed) const throw(std::exception){
+void Vocabulary::toStream(  std::ostream &out_str, bool compressed) const {
 
     uint64_t sig=88877711233;//magic number describing the file
     out_str.write((char*)&sig,sizeof(sig));
@@ -1257,7 +1257,7 @@ void Vocabulary::toStream(  std::ostream &out_str, bool compressed) const throw(
 }
 
 
-void Vocabulary:: load_fromtxt(const std::string &filename)throw(std::runtime_error){
+void Vocabulary:: load_fromtxt(const std::string &filename){
 
     std::ifstream ifile(filename);
     if(!ifile)throw std::runtime_error("Vocabulary:: load_fromtxt  Could not open file for reading:"+filename);
@@ -1332,7 +1332,7 @@ void Vocabulary:: load_fromtxt(const std::string &filename)throw(std::runtime_er
            }
        }
 }
-void Vocabulary::fromStream(  std::istream &str )   throw(std::exception){
+void Vocabulary::fromStream(  std::istream &str ){
 
 
     m_words.clear();
diff --git a/src/Vocabulary.h b/src/Vocabulary.h
index 7cf5f5a..c5113b6 100644
--- a/src/Vocabulary.h
+++ b/src/Vocabulary.h
@@ -299,8 +299,8 @@ friend class FastSearch;
    */
   int getDescritorType()const;
   //io to-from a stream
-  void toStream(  std::ostream &str, bool compressed=true) const throw(std::exception);
-  void fromStream(  std::istream &str )   throw(std::exception);
+  void toStream(  std::ostream &str, bool compressed=true) const;
+  void fromStream(  std::istream &str );
 
  protected:
 
@@ -435,7 +435,7 @@ friend class FastSearch;
 
    /**Loads from ORBSLAM txt files
     */
-   void load_fromtxt(const std::string &filename)throw(std::runtime_error);
+   void load_fromtxt(const std::string &filename);
 
 protected:
 
diff --git a/utils/create_voc_step0.cpp b/utils/create_voc_step0.cpp
index 4fd78f6..239a7ea 100644
--- a/utils/create_voc_step0.cpp
+++ b/utils/create_voc_step0.cpp
@@ -43,7 +43,7 @@ vector<string> readImagePaths(int argc,char **argv,int start){
         return paths;
 }
 
-vector< cv::Mat  >  loadFeatures( std::vector<string> path_to_images,string descriptor="") throw (std::exception){
+vector< cv::Mat  >  loadFeatures( std::vector<string> path_to_images,string descriptor="") {
     //select detector
     cv::Ptr<cv::Feature2D> fdetector;
     if (descriptor=="orb")        fdetector=cv::ORB::create();
diff --git a/utils/demo_general.cpp b/utils/demo_general.cpp
index 63db40b..7cdf129 100644
--- a/utils/demo_general.cpp
+++ b/utils/demo_general.cpp
@@ -48,7 +48,7 @@ vector<string> readImagePaths(int argc,char **argv,int start){
         return paths;
 }
 
-vector< cv::Mat  >  loadFeatures( std::vector<string> path_to_images,string descriptor="") throw (std::exception){
+vector< cv::Mat  >  loadFeatures( std::vector<string> path_to_images,string descriptor="") {
     //select detector
     cv::Ptr<cv::Feature2D> fdetector;
     if (descriptor=="orb")        fdetector=cv::ORB::create();