[Coin-ipopt] Restoration phase in the restoration phase failed

[Dime Vitanovski]

Hi Ipopt users,
 
I am trying to optimize a simple function that have 8 unknowns and 2 constraints and I know that the problem is feasible. But I'm getting the following error:
 
WARNING: Problem in step computation; Switching to emergency mode.
Restoration phase is called at point that is almost feasible, with constraint violation 0.000000e+000. Abort
Restoration phase in the restoration phase is failed.
 
Can you tell me what can cause this kind of problem? If you need more details just tell me, I am new with IPopt and have no experience with sending errors
 
 
Thanks,
Dime Vitanovski
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