Hi Shubham,
The error states the pattern '(?!' is not supported. I'm assuming you're using ! as not in this case. Have you tried using the negated operator ^, as per the regex support guide?
Hi Shubham,
The error states the pattern '(?!' is not supported. I'm assuming you're using ! as not in this case. Have you tried using the negated operator ^, as per the regex support guide?
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