Sometimes the heat exchanger model file can execute without any error but once the model is exported to SolidWorks, it can show some red colored error indications in the SolidWorks assembly as shown below in the screenshot to the left:
The way to resolve this issue is to follow the steps below:
1. Open the model file in AutoPIPE Vessel
2. Open the tubesheet dialog box and open the Geometry tab
3. Click OK
4. Save the file, rerun the calculations and rerun the SoldWorks CAD export
The problem should be resolved and there should be no error in the SolidWorks assembly model.