@RISK Error: "The formula ... could not be correctly parsed"

To prevent the warning and allow the simulation to continue, you can disable Smart Sensitivity Analysis for this workbook. Open Simulation Settings Go to the Sampling tab, and set Smart Sensitivity Analysis to Disabled. Click OK and save the file. Smart Sensitivity Analysis can be enabled or disabled on a per-workbook basis, and you may also configure the default behavior in Application Settings for new models. These options are available in versions 6.x through 7.x (excluding @RISK 5.0.0).