svelte
Lifecycle function called outside component initialization
lifecycle.*can only be.*during.*initialisation|onMount.*outside component
Fixes
- 1.Call onMount/onDestroy at the top level of the component script, not in callbacks
- 2.Move lifecycle calls out of async functions or setTimeout
- 3.Use tick() instead if you need to wait for DOM updates after state change
sveltelifecycleonMount
Related Errors
svelte3 fixes
Component not valid for SSR rendering
is not a valid SSR component
- •Add export default to the component or check the import path
- •Ensure the component doesn't use browser APIs at top level
svelte3 fixes
Svelte $ reactive syntax error
\$.*is not defined|\$state.*not allowed
- •Ensure $ reactive declarations are at the top level of a .svelte file
- •In Svelte 5, use $state() rune inside .svelte.ts files only with proper config
svelte3 fixes
SvelteKit load function failure
load function.*error|\+page\.ts.*failed|load.*returned.*undefined
- •Ensure load function returns an object (even empty {})
- •Handle fetch errors with try/catch and return error() from @sveltejs/kit