Model is underconstrained.
The following variables couldn't be defined:
 * CaD in component CaD
 * Ca_T in component Ca
 * DM1 in component DM1
 * DM1_T in component DM1_T
 * DM2 in component DM2
 * DM2_T in component DM2_T
 * D in component D
 * Bi in component Bi
 * k_trans in component constants
 * d/dt CaDM1 in component CaDM1
 * d/dt CaDM2 in component CaDM2
 * d/dt CaD in component CaD
 * d/dt CaBi in component CaBi