Applies To
	Product(s):	STAAD.Pro
	Version(s):	All
	Environment:	N/A
	Area:	Modeling Solutions
	Subarea:	Materials
	Original Author:	Modestas Turulis. Bentley Technical Support Group

The analysis ends up with such error in the Output file:

*** STAAD.Pro ERROR MESSAGE ***
DENSITY NOT PROVIDED. SELFWEIGHT COMMAND IGNORED

Why?

 

This error indicates, that the program cannot identify what density of the material should be used to calculate this selfweight of the structure. Usually, this happens if the material properties are not assigned to the members/plates/solids. To assign the material, go to the Material page, select the required material from the  Materials' list and click assign: