Zhenlin, The petsc configuration I posted was for complex numbers, which is enabled with --with-scalar-type=complex. If you have not removed this option, then it makes sense that you get the error - the data_out classes do not yet support complex numbers (https://github.com/dealii/dealii/issues/2033). Maybe this is the issue?
Best, Artur -- The deal.II project is located at http://www.dealii.org/ For mailing list/forum options, see https://groups.google.com/d/forum/dealii?hl=en --- You received this message because you are subscribed to the Google Groups "deal.II User Group" group. To unsubscribe from this group and stop receiving emails from it, send an email to dealii+unsubscr...@googlegroups.com. For more options, visit https://groups.google.com/d/optout.