Model is underconstrained.
The following variables couldn't be defined:
 * MP in component MP
 * Pt in component P2
 * d/dt MP in component MP
 * d/dt P0 in component P0
 * d/dt P1 in component P1
 * d/dt P2 in component P2
 * d/dt MT in component MT
 * d/dt T0 in component T0
 * d/dt T1 in component T1
 * d/dt T2 in component T2
 * d/dt C in component C
 * d/dt CN in component CN