Add Eigen align macro

include/IMU/factor/factor_IMU.h

@@ -147,6 +147,8 @@ class FactorIMU : public FactorAutodiff<FactorIMU, 15, 3, 4, 3, 6, 3, 4, 3, 6>
         const Eigen::Matrix3d sqrt_A_r_dt_inv;
         const Eigen::Matrix3d sqrt_W_r_dt_inv;
 
+    public:
+      EIGEN_MAKE_ALIGNED_OPERATOR_NEW;
 };
 
 ///////////////////// IMPLEMENTAITON ////////////////////////////