# Failed to solve perfect foresight model!

**URL:** <https://forum.dynare.org/t/failed-to-solve-perfect-foresight-model/26919>\
**Category:** Perfect foresight simulations\
**Created:** [20 December 2024 16:15 UTC](https://forum.dynare.org/t/failed-to-solve-perfect-foresight-model/26919 "2024-12-20T16:15:09Z")\
**Posts on this page:** 2\
**Page:** 1

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**Author:** ![hay](https://forum.dynare.org/letter_avatar_proxy/v4/letter/h/958977/32.png) [@hay](https://forum.dynare.org/u/hay)\
**Post date:** [20 December 2024 16:15 UTC](https://forum.dynare.org/t/failed-to-solve-perfect-foresight-model/26919/1 "2024-12-20T16:15:09Z")

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Hello Dynare users,  
I am trying to perform a perfect foresight exercise for the Tunisian economy based on the Trabandt and Uhlig (2015) model. Dynare solves the steady state perfectly, but for the perfect foresight dynamics, it declares “Failed to solve perfect foresight model” each time, even when I use `perfect_foresight_solver(robust_lin_solve)`. Any advice would be greatly appreciated.

Thanks!  
[Laffer\_transition1.mod](https://forum.dynare.org/uploads/short-url/daROFZ1K7jSDdkrLxJWw1jfbjdt.mod) (6.3 KB)

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**Author:** ![jpfeifer](https://forum.dynare.org/user_avatar/forum.dynare.org/jpfeifer/32/5044_2.png) [@jpfeifer](https://forum.dynare.org/u/jpfeifer)\
**Post date:** [31 December 2024 12:20 UTC](https://forum.dynare.org/t/failed-to-solve-perfect-foresight-model/26919/2 "2024-12-31T12:20:31Z")

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From what I can see, a major issue is that your terminal condition is not a steady state.