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I am solving a nonlinear Model predictive control problem . I get the following error. Can anybody help me understand the error report?

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Sargondjani
Sargondjani on 23 Jun 2021
The error says that the derivative at the initial point (x0) is either NaN, infinity, or complex. So you should check whether that is supposed to be the case. If this is only a local problem, you could use a slightly different starting value for x0
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Sargondjani
Sargondjani on 24 Jun 2021
I need to see your code (minimal working example would be great), otherwise it's hard to help you
Maybe you specified a non linear constraint, without intending to do so?

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