in Aspen Plus, after selecting a component (for example, WATER), when you click on "Run" (the error "Unexpected end of file. The results are not loaded", the properties of substances from the component database are not loaded. In the "Control panel" the following information:
<< Loading Simulation Engine 21:09:53 Thu Apr 6,
2023>>->Processing input specifications ...
* WARNING IN PHYSICAL PROPERTY SYSTEM
MW MISSING FOR COMPONENT NH3
* WARNING IN PHYSICAL PROPERTY SYSTEM
NRTL BINARY PARAMETERS FOR ALL COMPONENT PAIRS ARE ZERO,
YOUR RESULTS MAY NOT BE ACCURATE. PLEASE REVIEW AND PROVIDE BINARY
PARAMETERS AS APPROPRIATE.
What to do?