** ERROR 99308 ** The polymer melt density for the second material is less than or equal to zero. Typical value: 1 g/cm^3. Check the material data and run the analysis again.
Explanation
The polymer melt density of the second material is zero or negative.
Resolution
Edit the second material and enter a positive melt density.
Select a different material.
If the material is from the Autodesk Simulation Moldflow materials database, contact Technical Support.