diff --git a/idl/MG_ADAPT.idl b/idl/MG_ADAPT.idl
index 8f9311e75..8cad0d628 100644
--- a/idl/MG_ADAPT.idl
+++ b/idl/MG_ADAPT.idl
@@ -124,7 +124,9 @@ module SMESH{
 
 		boolean setAll();
 		string getCommandToRun() ;
-		long compute(out string errStr);
+		//long compute(out string errStr);
+		long compute();
+		string getErrMsg();
 		string getFileName() ;
 		string getExeName();
 		void copyMgAdaptHypothesisData(in  MgAdaptHypothesisData f ) ;
diff --git a/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.cxx b/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.cxx
index 56180d043..0025f5751 100644
--- a/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.cxx
+++ b/src/SMESHGUI/SMESHGUI_MG_ADAPTDRIVER.cxx
@@ -376,7 +376,8 @@ bool SMESHGUI_MG_ADAPTDRIVER::execute()
     char* errStr;
     try
     {
-        err = getModel()->compute(errStr);
+        err = getModel()->compute();
+        errStr = getModel()->getErrMsg();
         std::string msg =  err == 0 ? " ok" : std::string("Not ok \n")+CORBA::string_dup(errStr) ;
     }
     catch (const std::exception& e)
diff --git a/src/SMESH_I/MG_ADAPT_i.cxx b/src/SMESH_I/MG_ADAPT_i.cxx
index 6a770c68c..1d41d8079 100644
--- a/src/SMESH_I/MG_ADAPT_i.cxx
+++ b/src/SMESH_I/MG_ADAPT_i.cxx
@@ -354,13 +354,24 @@ char* MG_ADAPT_i::getCommandToRun()
 	return CORBA::string_dup(myMgAdapt->getCommandToRun().c_str());
 }
 
-CORBA::Long MG_ADAPT_i::compute(::CORBA::String_out errStr)
+//~CORBA::Long MG_ADAPT_i::compute(::CORBA::String_out errStr)
+//~{
+	//~std::string err("");
+	//~CORBA::Long ret = myMgAdapt->compute(err);
+	//~errStr =  err.c_str();
+	//~return ret;
+//~}
+CORBA::Long MG_ADAPT_i::compute()
 {
-	std::string err("");
-	CORBA::Long ret = myMgAdapt->compute(err);
-	errStr =  err.c_str();
+	errStr = "";
+	CORBA::Long ret = myMgAdapt->compute(errStr);
+	//~errStr =  err.c_str();
 	return ret;
 }
+char* MG_ADAPT_i::getErrMsg()
+{
+	return CORBA::string_dup(errStr.c_str());
+}
 char* MG_ADAPT_i::getFileName() 
 {
 	return CORBA::string_dup(myMgAdapt->getFileName().c_str());
diff --git a/src/SMESH_I/MG_ADAPT_i.hxx b/src/SMESH_I/MG_ADAPT_i.hxx
index 7ff30dce4..07fc78b8f 100644
--- a/src/SMESH_I/MG_ADAPT_i.hxx
+++ b/src/SMESH_I/MG_ADAPT_i.hxx
@@ -106,7 +106,8 @@ public:
     
 	bool setAll();
 	char* getCommandToRun() ;
-	CORBA::Long compute(::CORBA::String_out errStr);
+	//~CORBA::Long compute(::CORBA::String_out errStr);
+	CORBA::Long compute();
 	char* getFileName();
 	char* getExeName();
 	void copyMgAdaptHypothesisData( const SMESH::MgAdaptHypothesisData& data ) ;
@@ -127,9 +128,10 @@ public:
 	void copyHypothesisDataToImpl(const SMESH::MgAdaptHypothesisData& from, ::MG_ADAPT::MgAdaptHypothesisData* to) const;
 	//~TOptionValues        getOptionValues()       const;
    	//~const TOptionValues& getCustomOptionValues() const ;
+   	char* getErrMsg();
 private:
   ::MG_ADAPT::MgAdapt*          myMgAdapt;
-
+  std::string errStr;
   //~CORBA::ORB_ptr         _orb;
   //~ADAPT::ADAPT_Gen_var _gen_i;