# problem
flow123d_version: 3.1.0
problem: !Coupling_Sequential
  description: 'Can not determine type of the Abstract at address: /problem/solute_equation/transport'
  mesh:
    mesh_file: ../00_mesh/prism_3el.msh
### ERROR Can not determine type of the Abstract
  flow_equation:
    nonlinear_solver:
      linear_solver: !Petsc
        a_tol: 1.0e-12
        r_tol: 1.0e-12
    input_fields:
      - region: ALL
        conductivity: 10
    output:
      fields:
        - pressure_p0
    output_stream:
      file: flow.pvd
      format: !vtk
        variant: ascii
