E3022

Ill-formed list of alerts.

This error happens when the alert-list option in moon.pkg cannot be parsed. The option uses the same compact list syntax as warnings, with + to enable an alert and - to disable an alert. Older configurations may use an @ prefix to promote an alert to an error. The prefix remains accepted only for compatibility and should not be used in new configuration.

Erroneous example

options(
  "alert-list": "1",
)

Suggestion

Use a valid alert-list entry:

options(
  "alert-list": "-unsafe",
)