** ERROR 129000 ** No gas injection control option is specified for one or more gas entrances. Select an appropriate setting in the Gas-assisted injection controller dialog and re-run the analysis.
No Gas injection control option has been selected in the Gas-assisted injection controller settings for one or more gas entrances.
Right-click on the gas entrance and select Properties. Click Edit... and select a suitable Gas injection control option. Click Edit controller settings... and enter the required additional inputs.