Storybook: upgrade storybook@alpha to use emotion version 10

[lifeiscontent]

I'm running into an issue using @emotion/core@next

export withCSSContext was not found in @emotion/core

this is due to the API changing in emotion 10.

[lifeiscontent]

@igor-dv do you know who might be able to look into this?

[igor-dv]

@lifeiscontent, looks like @emotion/core@10 is still in beta. We mostly try not to depend on unstable deps. Maybe we can make it into v4.1.0-alpha. CC @ndelangen @shilman

[lifeiscontent]

@igor-dv it's no longer in beta.

[igor-dv]

🔥
I suppose it will be handled soon by our @dependabot-bot . But you can submit a PR 😉

[ghost]

If in one project use last versions of storybook and emotion it cases missing styles in storybook UI

[ferrybrouwer]

Probably the problem is that mjs module is loaded which uses an import statement of @emotion/core. Since it tries to resolve it uses the newer @emotion/core 10 version. Hopefully they fix this in the near future since Emotion 10 has some strong features (such as the css prop/attribute now can be used without the babel plugin which enables to fully compile with only TypeScript)

[ndelangen]

update on the progress:

I merged the PR into a feature branch that will go live in january.

[ndelangen]

4086

[lifeiscontent]

nice

[tkh44]

@ndelangen any chance this could be released before that major update? I can help out if needed.

[tmeasday]

This is merged into the v5 branch which is going into next any minute now

[shilman]

Released here: https://github.com/storybooks/storybook/releases/tag/v5.0.0-alpha.0

[Iuriy-Budnikov]

I'm getting following error

regeneratorRuntime is not defined