NSArray may not respond to componentsSeparatedByString

NSArray *Lines = [StringData componentsSeparatedByString:@"\n"];
for (NSArray *ThisLine in Lines){

    NSArray *Items = [ThisLine componentsSeparatedByString:@","];
    ...
}

I get a warning NSArray may not respond to componentsSeparatedByString.

开发者_JAVA百科

Any thoughts?

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You are declaring ThisLine as an array when it should be an NSString. This should fix it

for (NSString *ThisLine in Lines){