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I am using filehelpers 2.9.9 and trying to use FiledOptional but I keep getting this error
The field: SystemUrl must be marked as optional because the previous field is marked as optional. (Try adding [FieldOptional] to SystemUrl)
SystemUrl is the first field and I marked it FieldOptional. Does every other field after it need to marked as Optional Too?
Yes. Once you mark a field as optional, all subsequent fields must also be optional.
If you don’t want this behavior, you’ll need to move
SystemUrlto the end, not have it first.