column "{colId}" has values too long for a QR code at level {level}; the maximum this build encodes is {n} bytes (version {v}).

Warnings reference › qrcode:capacity:*

Identifier

qrcode:capacity:*

Raised by

The grid (rendering)

Since

1.0.1

What happened

A value is longer than the largest symbol this build encodes at the requested correction level. Nothing is drawn: the cell is marked as overflowed rather than showing a truncated symbol, because a QR code that scans to the wrong thing is worse than no QR code at all.

The fix

Shorten the value - a short link that redirects is the usual answer - or lower the correction level, which buys capacity at the cost of robustness.

Reference

Covered in full at the API reference.