diff --git a/include/Dir.h b/include/Dir.h
index d2afaf7..1156075 100644
--- a/include/Dir.h
+++ b/include/Dir.h
@@ -5,6 +5,7 @@
 #include "Histo.h"
 #include <sys/stat.h>
 #include <unistd.h>
+#include <cstdlib>
 #include <iostream>
 #include <TCanvas.h>
 //this module can be improved by adding the time information to the first dir. 
diff --git a/include/Histo.h b/include/Histo.h
index 591d655..6f7df2e 100644
--- a/include/Histo.h
+++ b/include/Histo.h
@@ -10,6 +10,7 @@ Author: OS
 #include <vector>
 #include <iostream>
 #include <THStack.h>
+#include <cstdlib>
 /*Purpose of this class is to arrange histogram containers for the plotting tool
   The Histo base class is inherited to variety of different classes among the tool, 
   thus, a basic understanding of this class is necessary to do modifications on the
diff --git a/include/Properties.h b/include/Properties.h
index 506b7f8..c129c50 100644
--- a/include/Properties.h
+++ b/include/Properties.h
@@ -12,6 +12,7 @@ ozgur[no_spam].sahin[spam_not]@cern.ch
 #include <TH1D.h>
 #include <THStack.h>
 #include <TString.h>
+#include <cstdlib>
 #include <map>
 #include <vector>
 #include "Histo.h"
diff --git a/include/Ratio.h b/include/Ratio.h
index 1fed26b..a43e121 100644
--- a/include/Ratio.h
+++ b/include/Ratio.h
@@ -25,7 +25,7 @@ namespace plotting{
   template<class dat_type, class bkg_type, class sig_type> TPad* plotting::Ratio<dat_type,bkg_type,sig_type>::DrawPlot(dat_type* data,bkg_type* background, sig_type* signal)
     {
 
-      TPad* pad1= AllocPad(data->GetName(),background->GetName());
+      TPad* pad1= this->AllocPad(data->GetName(),background->GetName());
       pad1->Draw();
       
 
diff --git a/src/Dir.cpp b/src/Dir.cpp
index 393d5f6..92a2333 100644
--- a/src/Dir.cpp
+++ b/src/Dir.cpp
@@ -9,6 +9,7 @@ ozgur[no_spam].sahin[spam_not]@cern.ch
 #include <TString.h>
 #include <string>
 #include <sys/stat.h>
+#include <cstdlib>
 #include <unistd.h>
 #include <TCanvas.h>
 using std::cout;
diff --git a/src/Draw.cpp b/src/Draw.cpp
index 314b920..6f54458 100644
--- a/src/Draw.cpp
+++ b/src/Draw.cpp
@@ -17,6 +17,7 @@ ozgur[no_spam].sahin[spam_not]@cern.ch
 #include <TAxis.h>
 #include <TFile.h>
 #include <TCanvas.h>
+#include <cstdlib>
 #include "Pad.h"
 #include "Ratio.h"
 #include "Control.h"
@@ -32,7 +33,7 @@ using namespace plotting;
 void plotting::Draw::arrange_hists(const TString& config_path)
 {
   TH1::SetDefaultSumw2(true);
-  gErrorIgnoreLevel = kWarning;
+  gErrorIgnoreLevel = kBreak;
   properties property(config_path);
   std::vector<TString*>::iterator path_it;
   //Don't worry we are not moving the objects, just put their addresses together.
diff --git a/src/Histo.cpp b/src/Histo.cpp
index a4e702b..a5cfa73 100644
--- a/src/Histo.cpp
+++ b/src/Histo.cpp
@@ -9,7 +9,7 @@ Author:OS
 #include <TKey.h>
 #include <TFile.h>
 #include <iostream>
-
+#include <cstdlib>
 using namespace std;
 //simple method that sets the integral for the given value to Hist container 
 void plotting::Histo::Set_integral(Hist* hist_it,int min, int max)  {
diff --git a/src/MakeUp.cpp b/src/MakeUp.cpp
index 10e98e1..0e1a60c 100644
--- a/src/MakeUp.cpp
+++ b/src/MakeUp.cpp
@@ -5,6 +5,7 @@
 #include <TH1D.h>
 #include "THStack.h"
 #include <TList.h>
+#include <cstdlib>
 #include "TObject.h"
 #include "TCollection.h"
 #include "TLatex.h"
diff --git a/src/Pad.cpp b/src/Pad.cpp
deleted file mode 100644
index f6d5e7b..0000000
--- a/src/Pad.cpp
+++ /dev/null
@@ -1,11 +0,0 @@
-#include "Pad.h"
-#include <iostream>
-
-using std::cout;
-using std::endl;
-
-int plotting::Pad::Print() const {
-  cout<<"Hello world!"<<endl;
-
-  return 0;
-}