Model is underconstrained.
The following variables couldn't be defined:
 * V in component membrane
 * i_Ca in component calcium_current
 * i_K in component delayed_rectifier_potassium_current
 * i_K_Ca in component calcium_dependent_potassium_current
 * i_K_ATP in component nucleotide_sensitive_potassium_current
 * n_infinity in component delayed_rectifier_potassium_current_n_gate
 * m_infinity in component calcium_current_m_gate
 * g_K_Ca in component calcium_dependent_potassium_current
 * MgADP in component nucleotide_sensitive_potassium_current
 * ADP3 in component nucleotide_sensitive_potassium_current
 * ATP4 in component nucleotide_sensitive_potassium_current
 * g_K_ATP_ in component nucleotide_sensitive_potassium_current
 * O_infinity_ADP_ATP in component nucleotide_sensitive_potassium_current
 * ATP in component adenine_nucleotides
 * Jmem in component calcium_flux_through_the_membrane
 * Jer in component net_calcium_efflux_out_of_the_ER
 * Jleak in component calcium_leak_out_of_the_ER
 * J_SERCA in component calcium_influx_into_the_ER
 * F6P in component glycolysis
 * R_GPDH in component glycolysis
 * R_PFK in component glycolysis
 * sum_state in component glycolysis
 * fraction_state in component glycolysis
 * W00000 in component glycolysis
 * W11100 in component glycolysis
 * AMP in component adenine_nucleotides
 * gamma in component adenine_nucleotides
 * d/dt V in component membrane
 * d/dt n in component delayed_rectifier_potassium_current_n_gate
 * d/dt Ca in component cytosolic_free_calcium_concentration
 * d/dt Ca_er in component ER_calcium_concentration
 * d/dt G6P in component glycolysis
 * d/dt FBP in component glycolysis
 * d/dt ADP in component adenine_nucleotides