Execution problem no. 3060 in modal analysis

[Anonymous]

I've modeled a power line in Robot and when I try to execute modal analysis calculations it gives me executive problem no. 3060. Had a few instabilities in some nodes, I managed to fix them but somehow I only created more instabilities. I tried some other things but it still gives me error because off executive problem no. 3060. Help please!!

[Rafal.Gaweda]

Correct model first to get rid of all instabilities in it.
If it is not the case please send us model.

[Rafal.Gaweda]

As I said before you need to correct model first:

[Anonymous]

I don't have instabilities in my structure and that error keeps appearing... I already try to repair Robot and don't solve this occurance.

My only warnings are: isolated nodes and duplicated load case. 

Can I sent my file ?

Cumps

[Rafal.Gaweda]

Yes, we need your file.

[Anonymous]

Here it goes.

It's attached also the spectrum for spectral analysis.

Cumps

[Anonymous]

The spectrum file don't have a valid extension... You can try to run the spectral analysis with any spectrum. That's certainly not the problem

[Rafal.Gaweda]

Something is wrong with mass defintion.

You are converting loads onto masses acting in Z direction only but in Modal case definition you neglect them so in fact there is no mass for Modal.

[Anonymous]

Problem Solved.

Thanks