[Wrf-users] Metgrid.exe aborts

[afwande juliet]

Hi all I am running metgrid but get below error
ERROR: Cannot combine time-independent data with time-dependent data for
field LANDSEA.mask

i have ungribed  pressure, surface, Invariant and SST data for ERA Interim.
my namelist.wps is below

&share
 wrf_core = 'ARW',
 max_dom = 1,
 start_date = '1997-03-01_06:00:00','1997-03-01_06:00:00',
 end_date   = '1997-03-15_06:00:00','1997-03-15_06:00:00',
 interval_seconds = 21600,
 io_form_geogrid = 2,
 debug_level     = 100,
/

&geogrid
 parent_id         =   1,   1,
 parent_grid_ratio =   1,   3,
 i_parent_start    =   1,  20,
 j_parent_start    =   1,  30,
 e_we              = 172, 397,
 e_sn              = 122, 259,
 geog_data_res     = '10m','2m',
 dx = 48000,
 dy = 48000,
 map_proj = 'mercator',
 ref_lat   =  -0.124,
 ref_lon   = 40.422,
 truelat1  =  -0.124,
 truelat2  =  0.0,
 stand_lon = 40.422,
 ref_x     = 86.0,
 ref_y     = 61.0,
 geog_data_path = '/share/data/geog'
/

&ungrib
 out_format = 'WPS',
 !prefix  = '/gomtorage/anyuola/Boundary/UNGRIBED/fix',
 prefix  = '/home01/anyuola/WRF/WPS/DATA/ERA/INVT/invt',
! prefix  = '/gomtorage/anyuola/ERA/ERA_Interim/pres1997-2008/pres',
! prefix  = '/gomtorage/anyuola/ERA/ERA_Interim/Ungribed/fix',

/

&metgrid
 constants_name  =
'/home01/anyuola/WRF/WPS/DATA/ERA/INVT/invt:1989-01-01_12',
 fg_name =
'/gomtorage/anyuola/Boundary/UNGRIBED/fix','/home01/anyuola/WRF/WP/DATA/SST/sst',
 io_form_metgrid = 2,
/
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