Unable to parse header

#1

when I imported the data from csv file, an unexpected error appears:
Unable to parse header

my file 'field.csv' is as below:

fieldId:ID,name,:LABLE
6eadfc21876985995da55ed263cc7357,physics,field
...

I don't know what mistake I made?

#2

:LABEL instead of :LABLE in the header line?