[Bug]: Module parse failed: Unexpected token about storybook

[saura8668]

Hi @Rajesh-Poojari-Dmart can you assign me this issue?

[valentinpalkovic]

Hi @Rajesh-Poojari-Dmart

Thank you for opening the issue.

The issue is very likely coupled to the fact, that you don't have a compiler addon installed, which is required by webpack5-based projects in Storybook 8.

What's strange for me is that you don't have @storybook/addon-webpack5-compiler-babel or @storybook/addon-webpack5-compiler-swc installed. When using npx storybook@lastest upgrade the upgrade step should automatically install one of the packages for you.

For more information, please follow the migration guide:
https://github.com/storybookjs/storybook/blob/next/MIGRATION.md#removed-babelcore-and-babel-loader-from-storybookbuilder-webpack5

[Rajesh-Poojari-Dmart]

@valentinpalkovic Thank you so much I followed the instruction from the migration link shared by you and used the following command

npx storybook@latest add @storybook/addon-webpack5-compiler-babel

Now its working fine.

But I had used the following command and it was successful and it didn't gave me any warning at that time

npx storybook@lastest upgrade