Model is underconstrained.
The following variables couldn't be defined:
 * IP3R_star in component CaIP3
 * d/dt Ca_ext in component CaIP3
 * d/dt Ca in component CaIP3
 * d/dt Cap_channel in component CaIP3
 * d/dt Cap_channel_star in component CaIP3
 * d/dt IP3R in component CaIP3
 * d/dt IP3 in component CaIP3
 * d/dt IP3R_star in component CaIP3
 * d/dt Ca_stores in component CaIP3
 * d/dt Ca_transp in component CaIP3
 * d/dt Ca2Ca_transp in component CaIP3