Hi all,
Trucking through a problem and hit a snag with linking
/home/mjrich/dealii/proj/proj.cc:294: error: undefined reference to 'void
dealii::SparseMatrix<double>::vmult<dealii::Vector<double>,
dealii::PackagedOperation<dealii::Vector<double> >
>(dealii::Vector<double>&, dealii::PackagedOperation<dealii::Vector<double>
> const&) const'
collect2: error: ld returned 1 exit status
make[2]: *** [CMakeFiles/proj.dir/build.make:294: proj] Error 1
make[1]: *** [CMakeFiles/Makefile2:291: CMakeFiles/proj.dir/all] Error 2
make: *** [Makefile:103: all] Error 2
the offending line
mass_matrix.vmult(system_rhs, -1*old_old_solution_u);
I am confused since I have it declared with
SparseMatrix<double> mass_matrix;
and
Vector<double> old_old_solution_u;
Vector<double> system_rhs;
my list of includes are below. Why am I getting this error at the linking
stage?
#include <deal.II/base/quadrature_lib.h>
#include <deal.II/base/function.h>
#include <deal.II/lac/vector.h>
#include <deal.II/lac/sparse_matrix.h>
#include <deal.II/lac/dynamic_sparsity_pattern.h>
#include <deal.II/lac/solver_cg.h>
#include <deal.II/lac/precondition.h>
#include <deal.II/lac/affine_constraints.h>
#include <deal.II/grid/tria.h>
#include <deal.II/grid/grid_generator.h>
#include <deal.II/grid/grid_tools.h>
#include <deal.II/dofs/dof_handler.h>
#include <deal.II/dofs/dof_tools.h>
#include <deal.II/fe/fe_q.h>
#include <deal.II/numerics/data_out.h>
#include <fstream>
#include <iostream>
#include <deal.II/numerics/vector_tools.h>
#include <deal.II/numerics/matrix_tools.h>
#include <deal.II/base/utilities.h>
#include <deal.II/fe/fe_q.h>
#include <deal.II/fe/fe_system.h>
#include <deal.II/lac/linear_operator_tools.h>
#include <deal.II/fe/mapping_q_generic.h>
#include <deal.II/lac/packaged_operation.h>
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