"Undefined index" is a very common error message in . A good question already adresses the problem and gives solutions to fix this error.

Most questions with this tag seem too localized and should be closed.

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Related question: Do we really need a tag for every error code?

closed as off-topic by rene, Glorfindel, Ward, Arulkumar, Robert Longson Dec 22 '18 at 14:22

This question appears to be off-topic. The users who voted to close gave this specific reason:

  • "This question's topic is only applicable to one specific site in the Stack Exchange Network. Questions on Meta Stack Exchange should relate to features or policies that commonly apply to the network or the software that drives it, within the guidelines defined in the help center. You should ask this question on the meta site where your concern originated." – rene, Glorfindel, Ward, Arulkumar, Robert Longson
If this question can be reworded to fit the rules in the help center, please edit the question.

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