Editing WoW:API COMBAT LOG EVENT (section)

=== Failed Type ===
*"A more powerful spell is already active"
*"Another action is in progress"
*"Can only use outside"
*"Can only use while swimming"
*"Can't do that while asleep"
*"Can't do that while charmed"
*"Can't do that while confused"
*"Can't do that while fleeing"
*"Can't do that while horrified"
*"Can't do that while incapacitated"
*"Can't do that while moving"
*"Can't do that while silenced"
*"Can't do that while stunned"
*"Interrupted"
*"Invalid target"
*"Item is not ready yet"
*"Must be in Bear Form, Dire Bear Form"
*"Must have a Ranged Weapon equipped"
*"No path available"
*"No target"
*"Not enough energy"
*"Not enough mana"
*"Not enough rage"
*"Not yet recovered"
*"Nothing to dispel"
*"Out of range"
*"Target is friendly"
*"Target is hostile"
*"Target needs to be in front of you."
** Added with [[Patch 6.1.2]].{{fact}} Possibly to rationalize with "be behind" from rogue's Gouge.
** Not to be confused with the red alert in UI, "Target must be facing you."
*"Target not in line of sight"
*"Target too close"
*"You are dead"
*"You are in combat"
*"You are in shapeshift form"
*"You are unable to move"
*"You can't do that yet"
*"You must be behind your target."
*"Your target is dead"
*More possible but currently unconfirmed