TypeScript Error: No element indexed by 0 #424
Description
This is caused by Vite's source map handling on .svelte files that are not dynamic files.
As a temporary workaround, make sure to have src/routes/$layout.svelte with at least some "dynamic" content, e.g.
<slot />
{''}Describe the bug
As long as svelte-preprocess is used in svelte.config.cjs, attempting to run dev mode results in internal errors.
Logs
With TypeScript, the page is a plaintext error:
Error: No element indexed by 0
at ArraySet_at [as at] (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:24278:9)
at BasicSourceMapConsumer.<anonymous> (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:25193:67)
at Array.map (<anonymous>)
at BasicSourceMapConsumer.SourceMapConsumer_eachMapping [as eachMapping] (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:25192:14)
at merge (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:26656:18)
at ssrTransform (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:61375:15)
at transformRequest (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:61643:48)
at async instantiateModule (C:\Users\GrygrFlzr\Documents\projects\sk-36\node_modules\vite\dist\node\chunks\dep-1bdbec90.js:67986:10)
To Reproduce
npm init svelte@next
# enable typescript
npm install
npm run devExpected behavior
No errors out of the box.
Information about your SvelteKit Installation:
npmPackages:
@sveltejs/kit: next => 1.0.0-next.36
svelte: ^3.29.0 => 3.35.0
Severity
Unusable dev mode.