Model is underconstrained.
The following variables couldn't be defined:
 * i_Na in component fast_sodium_current
 * i_Ca_L in component L_type_Ca_channel
 * i_Ca_T in component T_type_Ca_channel
 * i_Kr in component rapid_time_dependent_potassium_current
 * i_Ks in component slow_time_dependent_potassium_current
 * i_NaCa in component Na_Ca_exchanger
 * i_K1 in component time_independent_potassium_current
 * i_Kp in component plateau_potassium_current
 * i_Na_b in component sodium_background_current
 * i_Ca_b in component calcium_background_current
 * i_NaK in component sodium_potassium_pump
 * i_ns_Ca in component non_specific_calcium_activated_current
 * E_Na in component fast_sodium_current
 * m in component fast_sodium_current_m_gate
 * alpha_m in component fast_sodium_current_m_gate
 * beta_m in component fast_sodium_current_m_gate
 * alpha_h in component fast_sodium_current_h_gate
 * beta_h in component fast_sodium_current_h_gate
 * alpha_j in component fast_sodium_current_j_gate
 * beta_j in component fast_sodium_current_j_gate
 * i_CaCa in component L_type_Ca_channel
 * i_CaK in component L_type_Ca_channel
 * i_CaNa in component L_type_Ca_channel
 * I_CaCa in component L_type_Ca_channel
 * I_CaK in component L_type_Ca_channel
 * I_CaNa in component L_type_Ca_channel
 * alpha_d in component L_type_Ca_channel_d_gate
 * beta_d in component L_type_Ca_channel_d_gate
 * d_infinity in component L_type_Ca_channel_d_gate
 * tau_d in component L_type_Ca_channel_d_gate
 * alpha_f in component L_type_Ca_channel_f_gate
 * beta_f in component L_type_Ca_channel_f_gate
 * f_infinity in component L_type_Ca_channel_f_gate
 * tau_f in component L_type_Ca_channel_f_gate
 * b_infinity in component T_type_Ca_channel_b_gate
 * tau_b in component T_type_Ca_channel_b_gate
 * g_infinity in component T_type_Ca_channel_g_gate
 * tau_g in component T_type_Ca_channel_g_gate
 * g_Kr in component rapid_time_dependent_potassium_current
 * E_Kr in component rapid_time_dependent_potassium_current
 * Rr in component rapid_time_dependent_potassium_current_Rr_gate
 * Xr_infinity in component rapid_time_dependent_potassium_current_Xr_gate
 * tau_Xr in component rapid_time_dependent_potassium_current_Xr_gate
 * E_Ks in component slow_time_dependent_potassium_current
 * tau_Xs in component slow_time_dependent_potassium_current_Xs_gate
 * Xs_infinity in component slow_time_dependent_potassium_current_Xs_gate
 * E_K1 in component time_independent_potassium_current
 * g_K1 in component time_independent_potassium_current
 * K1_infinity in component time_independent_potassium_current_K1_gate
 * alpha_K1 in component time_independent_potassium_current_K1_gate
 * beta_K1 in component time_independent_potassium_current_K1_gate
 * E_Kp in component plateau_potassium_current
 * Kp in component plateau_potassium_current
 * E_NaN in component sodium_background_current
 * I_NaK in component sodium_potassium_pump
 * f_NaK in component sodium_potassium_pump
 * i_ns_Na in component non_specific_calcium_activated_current
 * i_ns_K in component non_specific_calcium_activated_current
 * I_ns_Na in component non_specific_calcium_activated_current
 * I_ns_K in component non_specific_calcium_activated_current
 * Ca_JSR_new in component calcium_buffers_in_the_myoplasm
 * Ca_JSR_old in component calcium_buffers_in_the_myoplasm
 * delta_Ca_JSR in component calcium_buffers_in_the_myoplasm
 * b1 in component calcium_buffers_in_the_myoplasm
 * c1 in component calcium_buffers_in_the_myoplasm
 * CSQN_buff in component calcium_fluxes_in_the_SR
 * i_rel in component calcium_fluxes_in_the_SR
 * i_leak in component calcium_fluxes_in_the_SR
 * i_tr in component calcium_fluxes_in_the_SR
 * G_rel in component calcium_fluxes_in_the_SR
 * G_rel_max in component calcium_fluxes_in_the_SR
 * delta_Ca_i2 in component calcium_fluxes_in_the_SR
 * calcium_overload in component calcium_fluxes_in_the_SR
 * R_A_V in component ionic_concentrations
 * V_myo in component ionic_concentrations
 * V_cleft in component ionic_concentrations
 * d/dt V in component membrane
 * d/dt m in component fast_sodium_current_m_gate
 * d/dt h in component fast_sodium_current_h_gate
 * d/dt j in component fast_sodium_current_j_gate
 * d/dt d in component L_type_Ca_channel_d_gate
 * d/dt f in component L_type_Ca_channel_f_gate
 * d/dt b in component T_type_Ca_channel_b_gate
 * d/dt g in component T_type_Ca_channel_g_gate
 * d/dt Xr in component rapid_time_dependent_potassium_current_Xr_gate
 * d/dt Xs in component slow_time_dependent_potassium_current_Xs_gate
 * d/dt Nai in component ionic_concentrations
 * d/dt Ki in component ionic_concentrations
 * d/dt Ko in component ionic_concentrations
 * d/dt Ca_NSR in component ionic_concentrations
 * d/dt Ca_foot in component ionic_concentrations