svelte/packages/svelte/messages/compile-errors/template.md

animation_invalid_placement

An element that uses the animate: directive must be the only child of a keyed {#each ...} block

animation_missing_key

An element that uses the animate: directive must be the only child of a keyed {#each ...} block. Did you forget to add a key to your each block?

animation_duplicate

An element can only have one 'animate' directive

event_handler_invalid_modifier

Valid event modifiers are %list%

event_handler_invalid_modifier_combination

The '%modifier1%' and '%modifier2%' modifiers cannot be used together

event_handler_invalid_component_modifier

Event modifiers other than 'once' can only be used on DOM elements

transition_duplicate

Cannot use multiple %type%: directives on a single element

transition_conflict

Cannot use %type%: alongside existing %existing%: directive