Note: Below is the original page from the Bootlint documentation, some of the info here might not apply to Bootlint-NG!

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E037

Column widths must be positive integers (and <= 12 by default). Found usage(s) of invalid nonexistent .col-*-0 classes.

There are no .col-*-0 (i.e. .col-xs-0, .col-sm-0, .col-md-0, .col-lg-0) classes in Bootstrap v3.