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Description
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This issue has a possible workaround
Describe the bug
A clear and concise description of what the bug is.
Steps to reproduce the behavior
- Setup fresh storybook with svelte project
- Use storybook 8
- Follow svelte-csf install instructions
- Error shown below.
Expected behavior
A clear and concise description of what you expected to happen.
Screenshots and/or logs

▪▪▪▪ socgen-ui:storybook
(node:13628) [DEP0040] DeprecationWarning: The `punycode` module is deprecated. Please use a userland alternative instead.
(Use `node --trace-deprecation ...` to show where the warning was created)
@storybook/cli v8.0.0-rc.1
SB_CORE-SERVER_0002 (CriticalPresetLoadError): Storybook failed to load the following preset: ./.storybook/main.ts.
Please check whether your setup is correct, the Storybook dependencies (and their peer dependencies) are installed correctly and there are no package version clashes.
If you believe this is a bug, please open an issue on Github.
SB_CORE-SERVER_0002 (CriticalPresetLoadError): Storybook failed to load the following preset: /Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/addon-svelte-csf/dist/index.js.
Please check whether your setup is correct, the Storybook dependencies (and their peer dependencies) are installed correctly and there are no package version clashes.
If you believe this is a bug, please open an issue on Github.
/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/addon-svelte-csf/dist/components/Meta.svelte:1
<script>
^
SyntaxError: Unexpected token '<'
at internalCompileFunction (node:internal/vm:77:18)
at wrapSafe (node:internal/modules/cjs/loader:1290:20)
at Module._compile (node:internal/modules/cjs/loader:1342:27)
at Module._extensions..js (node:internal/modules/cjs/loader:1437:10)
at Object.newLoader (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/esbuild-register/dist/node.js:2262:9)
at extensions..js (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/esbuild-register/dist/node.js:4838:24)
at Module.load (node:internal/modules/cjs/loader:1212:32)
at Module._load (node:internal/modules/cjs/loader:1028:12)
at Module.require (node:internal/modules/cjs/loader:1237:19)
at require (node:internal/modules/helpers:176:18)
at loadPreset (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/core-common/dist/index.js:12:59)
at loadPreset (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/core-common/dist/index.js:12:59)
at async Promise.all (index 1)
at async loadPresets (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/core-common/dist/index.js:12:483)
at async getPresets (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/core-common/dist/index.js:12:1503)
at async buildDevStandalone (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/core-server/dist/index.js:65:2020)
at async withTelemetry (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/core-server/dist/index.js:28:3579)
at async dev (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/cli/dist/generate.js:634:563)
at async Command.<anonymous> (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/cli/dist/generate.js:636:250)
WARN Broken build, fix the error above.
WARN You may need to refresh the browser.
WARN Failed to load preset: {"type":"presets","name":"/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/addon-svelte-csf/dist/index.js"} on level 1
/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/@storybook/addon-svelte-csf/dist/components/Meta.svelte:1
<script>
^
SyntaxError: Unexpected token '<'
at internalCompileFunction (node:internal/vm:77:18)
at wrapSafe (node:internal/modules/cjs/loader:1290:20)
at Module._compile (node:internal/modules/cjs/loader:1342:27)
at Module._extensions..js (node:internal/modules/cjs/loader:1437:10)
at Object.newLoader (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/esbuild-register/dist/node.js:2262:9)
at extensions..js (/Users/seanknowles/Projects/Zemili/moonrepo/node_modules/esbuild-register/dist/node.js:4838:24)
at Module.load (node:internal/modules/cjs/loader:1212:32)
at Module._load (node:internal/modules/cjs/loader:1028:12)
at Module.require (node:internal/modules/cjs/loader:1237:19)
at require (node:internal/modules/helpers:176:18)
Environment
- OS: [e.g. iOS] - macos
- Node.js version: [e.g. v12.17.0] node 2021
- NPM version: [e.g. 6.14.4] - using Bun
Additional context
Add any other context about the problem here.