In classic EpiData, you cannot have variable names with an underscore. Jamie

While I try to apply checks I got the following lines always appeared error Can any one tell me what is wrong with the following variable names

Unknown label name or field name in line 24: COMMENT LEGAL USE label_cohort

Unknown label name or field name in line 34: COMMENT LEGAL USE label_n102marita

Unknown label name or field name in line 39: COMMENT LEGAL USE label_n103educat Thank You Very Much Fekadu