A zero displacement solution was fo

[hymavathi]

A zero displacement solution was found in the first iteration of a riks step. The analysis cannot proceed. The most likely cause is that all displacement degrees-of-freedom are constrained to be zero.
how to solve this error in a 3-point beam simulation when one support is modelled as pinned and other as roller.

 

[FEA way]

How is the beam loaded ? Can you share a screenshot showing BC and load symbols ?