id summary reporter owner description type status priority milestone component version severity resolution keywords cc 553 Ecopath cannot mass balance with immigration carieh administrator "So nobody wants to hear this, but I created model lab1-Oct27_ver2 If you add in all the parameters to make it exactly like the version 5 model it will NOT balance, you get an error (pop-up) that says `Ecopath failed to estimate one or more parameters` `EE could not be estimated for group 1` `Ecopath failed to run` and then the status bar gives you the same thing. I think this is due to the fact that there is immigration to group one in the other production interface. If you remove the immigration (set it =0) then the model balances and you can get to the output parameters. If you add the immigration back in then it will not run and gives you the same errors again. " closed normal Ecopath 6: build 6.0.7 Contaminant tracing minor fixed