rune_invalid_name error
The given name is not a valid rune. Valid runes are limited to Svelte's rune set.
Svelte · Language · all subjects
core/errors
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rune_invalid_spread error
A rune cannot be called with a spread argument.
rune_invalid_usage error
Cannot use a rune in non-runes mode. Runes like $state, $derived, etc. are only available when the component is using runes mode.
rune_missing_parentheses error
Cannot use rune without parentheses. Runes must be called as functions with parentheses.
rune_removed error
The specified rune has been removed from Svelte and is no longer available.
rune_renamed error
A rune name has been changed. The error message indicates what the rune is now called.
snippet_invalid_export error
An exported snippet can only reference things declared in a <script module>, or other exportable snippets. It cannot reference variables from the component-level <script>.
snippet_invalid_rest_parameter error
Snippets do not support rest parameters; use an array instead.
snippet_parameter_assignment error
Cannot reassign or bind to snippet parameter.
snippet_shadowing_prop error
A snippet with the same name as a prop will shadow that prop, which may be unintended.
animation_invalid_placement error
An element that uses the animate: directive must be the only child of a keyed {#each ...} block. Using animate: outside this specific context causes a compile error.
animation_missing_key error
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? This error occurs when the each block lacks a key expression.
attribute_invalid_sequence_expression error
Comma-separated expressions are not allowed as attribute/directive values in runes mode, unless wrapped in parentheses. For example, <div class={size, color}> is invalid. Instead use <div class={[size, color]}> or <div class={(size, color)}> if the comma operator is intentionally needed.
bind_group_invalid_expression error
bind:group can only bind to an Identifier or MemberExpression, not other expression types.
bind_invalid_expression error
Can only bind to an Identifier or MemberExpression or a {get, set} pair. Other expression types cannot be used with bind directives.
bind_invalid_value error
Can only bind to state or props. Attempting to bind to other variables causes a compile error.
bindable_invalid_location error
$bindable() can only be used inside a $props() declaration.
const_tag_invalid_placement error
{@const} must be the immediate child of {#snippet}, {#if}, {:else if}, {:else}, {#each}, {:then}, {:catch}, <svelte:fragment>, <svelte:boundary> or <Component>. Using {@const} in other locations causes a compile error.