one more update

OpenMDAO · Nov 17, 2023 · cba8c29 · cba8c29
1 parent 3a19fc6
commit cba8c29
Showing 1 changed file with 1 addition and 1 deletion.
diff --git a/dymos/trajectory/trajectory.py b/dymos/trajectory/trajectory.py
@@ -1016,7 +1016,7 @@ def _configure_solvers(self):
         These solvers can be changed through the
         'default_nonlinear_solver' and 'default_linear_solver' options.
         """
-        if self._has_connected_phases:
+        if self._has_connected_phases and isinstance(self.phases, om.ParallelGroup):
             if isinstance(self.phases.nonlinear_solver, om.NonlinearRunOnce):
                 if self.options['default_nonlinear_solver'] is None:
                     msg = f'{self.msginfo}: Setting phases.nonlinear_solver to `om.NonlinearBlockJac(iprint=0)`.\n' \