file.mode was not found? 1

[JaneHe]

When I tried to solve a dynamic analysis (two steps load). the warning poped out "file.mode was not found". I have no idea what it means. Did I miss something?
Thanks!

 

[Drej]

Yes, you probably performed a transient dynamic analysis (or something similar, who knows) without performing a modal (antype,2) analysis first. The "reduced" dynamic analyses, such as "modal superposition" in transient and harmonic response, require these mode files. These are not needed if you perform a "full" dynamic analysis.

Seasons greetings,

-- drej --