From dd15a5a51fc5f0e1bd6d60dacfcc960d8f91b731 Mon Sep 17 00:00:00 2001
From: Ipuch <puchaud.pierre@gmail.com>
Date: Fri, 12 Nov 2021 10:00:32 -0500
Subject: [PATCH] Default solution integrator as an empty string

---
 bioptim/misc/enums.py | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/bioptim/misc/enums.py b/bioptim/misc/enums.py
index 22cd0e2fc..cb03658ea 100644
--- a/bioptim/misc/enums.py
+++ b/bioptim/misc/enums.py
@@ -110,7 +110,7 @@ class SolutionIntegrator(Enum):
     Selection of integrator to use integrate function
     """
 
-    DEFAULT = None
+    DEFAULT = ""
     SCIPY_RK23 = "RK23"
     SCIPY_RK45 = "RK45"
     SCIPY_DOP853 = "DOP853"