Hi, I only run CLM50 and build it successfully. However, when I ./case.submit, there is an error and the cesm.log showed:84 (t_initf) Read in prof_inparm namelist from: drv_in 85 (t_initf) Using profile_disable= F 86 (t_initf) profile_timer= 4 87 (t_initf) profile_depth_limit= 4 88 (t_initf) profile_detail_limit= 2 89 (t_initf) profile_barrier= F 90 (t_initf) profile_outpe_num= 1 91 (t_initf) profile_outpe_stride= 0 92 (t_initf) profile_single_file= F 93 (t_initf) profile_global_stats= T 94 (t_initf) profile_ovhd_measurement= F 95 (t_initf) profile_add_detail= F 96 (t_initf) profile_papi_enable= F 97 ERROR: 98 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo 99 bal index: 4578100 ERROR:101 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo102 bal index: 6782103 ERROR:104 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo105 bal index: 9155106 ERROR:107 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo108 bal index: 11344109 ERROR:110 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo111 bal index: 12538112 ERROR:113 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo114 bal index: 14727115 ERROR:116 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo117 bal index: 3392118 ERROR:119 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo120 bal index: 5772121 ERROR:122 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo123 bal index: 15921124 ERROR:125 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo126 bal index: 17115127 ERROR:128 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo129 bal index: 18110130 ERROR:131 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo132 bal index: 19304133 ERROR:134 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo135 bal index: 21493136 ERROR:137 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo138 bal index: 22687139 ERROR:140 component_mod:check_fields NaN found in ATM instance: 1 field Sa_dens 1d glo141 bal index: 24876 I dont know this is because my forcing data or clm.