Model is underconstrained.
The following variables couldn't be defined:
 * K2_E1 in component K2_E1
 * d/dt K2_E1 in component K2_E1
 * d/dt K2_E1_ATP in component K2_E1_ATP
 * d/dt K_E1_ATP in component K_E1_ATP
 * d/dt E1_ATP in component E1_ATP
 * d/dt H_E1_ATP in component H_E1_ATP
 * d/dt H2_E1_ATP in component H2_E1_ATP
 * d/dt H2_E1_P in component H2_E1_P
 * d/dt H2_E2_P in component H2_E2_P
 * d/dt H_E2_P in component H_E2_P
 * d/dt E2_P in component E2_P
 * d/dt K_E2_P in component K_E2_P
 * d/dt K2_E2_P in component K2_E2_P
 * d/dt K2_E2 in component K2_E2
 * d/dt K2_E2_ATP in component K2_E2_ATP