--- FlopC++-1.2.5/src/MP_model.cpp.orig	2016-07-26 04:51:41.000000000 -0600

+++ FlopC++-1.2.5/src/MP_model.cpp	2019-06-21 09:07:24.557978525 -0600

@@ -433,19 +433,19 @@ MP_model::MP_status MP_model::solve(cons

     if (isMIP == true) {

 	try {

 	    Solver->branchAndBound();

-	} catch  (CoinError e) {

+	} catch  (CoinError& e) {

 	    cout<

 	    cout<<"Solving the LP relaxation instead."<

 	    try {

 		Solver->initialSolve();

-	    } catch (CoinError e) {

+	    } catch (CoinError& e) {

 		cout<

 	    }

 	}

     } else {

 	try {

 	    Solver->initialSolve();

-	}  catch (CoinError e) {

+	}  catch (CoinError& e) {

 	    cout<

 	}

     }