FBA error occured for new reaction

[Wu-Young Jeong]

Hello, I'm trying to use CobraPy for my research and I've encountered an problem

I've added new reaction with new metabolites and existing metabolites

And check the reaction is properly added to my xml model

However, when I try to do FBA on my model with new reaction as objective,

FBA result shows only 0.00 for every reaction 

I'd like to get some help for such problem. Thank you