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Hi all,

I am new to Nektar++, I was running tutorial: Incompressible Flow Simulation. When I tried to restart simulation by running code in 6.5 Optional additional tasks (Exercise1), it raised error

Initial Conditions:
  - Field u: from file cyl2DMesh.fld
  - Field v: from file cyl2DMesh.fld
  - Field p: from file cyl2DMesh.fld
Fatal   : Level 0 assertion violation
m_timestep < 0

I followed all instructions before, I’m not sure where I was wrong. It’s really confusing. Could you please help me with that? Thank you so much and have a good day.

Best,

Zhikang Dong