ERROR: AGRIF hot start requires to force Euler first step on parent

Versions v4.2.x
1

Hi everyone

I have been running a 10-year nested case. The AGRIF.in file is as follows.

1
172 196 62 92 2 2 2
1
10 41 15 46 3 3 3
0

Now, when I try to restart it, 1_ocean.output_00* and 2_ocean.output_00* both show the following error:

===>>> : E R R O R

      ===========

AGRIF hot start requires to force Euler first step on parent

West ht0 hv0 iindic= 0
West hu0 iindic= 0
East ht0 hv0 iindic= 0
East hu0 iindic= 0
South ht0 hv0 iindic= 0
South hu0 iindic= 0
North ht0 hv0 iindic= 0
North hu0 iindic= 0
kindic_agr= 0
kindic_agr= 0

===>>> : E R R O R

      ===========

AGRIF hot start requires to force Euler first step on parent

Can anyone offer suggestions on how to restart a nested simulation? Thanks in advance!
2

I seem to have fixed this issue by adding “ln_1st_euler = .true” to all namelist_cfg files. Thanks for your attention.