On 6/5/21 9:02 AM, [email protected] wrote:

I have tried to run this example with deal.II 9.1.0 and this problem still persists. With deal.II 9.0.0/9.0.1 the example fails to compile because it requires affine_constraints.h, which is not yet introduced:

/home/hbui/workspace2/deal.II/time_dependent_navier_stokes/time_dependent_navier_stokes.cc:9:10: fatal error: deal.II/lac/affine_constraints.h: No such file or directory
  #include <deal.II/lac/affine_constraints.h>

This class used to be called ConstraintMatrix and was defined in deal.II/lac/constraint_matrix.h.

You could go back in the history of the NS gallery program to match the 9.0 release. The github repository for the code gallery is here:
  https://github.com/dealii/code-gallery
The history of the .cc file is here:

https://github.com/dealii/code-gallery/commits/master/time_dependent_navier_stokes/time_dependent_navier_stokes.cc

Best
 W.

--
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Wolfgang Bangerth          email:                 [email protected]
                           www: http://www.math.colostate.edu/~bangerth/

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