Question: Is it expected to install babel presets as npm dependency?

[fusionstrings]

I tried to use babel presets using jspm install @babel/preset-reactbut it failed with following error-

(babel plugin) Error: Cannot find module '@babel/preset-react' from '/Users/dilip/@fusionstrings/jspm-fix-test'

When I install these dependencies using npm, it works. Is it expected behaviour? All other dependencies i.e. react, react-dom is installed using jspm.

[guybedford]

Is this following the workflow from https://jspm.org/docs/integrations#rollup?

Note that it is important that Rollup itself is installed and run with jspm for this to work.

[fusionstrings]

Right, I am following the same guide. I am getting following error during building.

[!] (babel plugin) Error: Cannot find module '@babel/preset-react' from '/Users/dilip/github/@fusionstrings/jspm-beta-issue-require-not-found'

This is the repository https://github.com/fusionstrings/jspm-beta-issue-require-not-found
After installing babel-presets using npm, it worked

[guybedford]

The issue you are having here is exactly the issue described in the Babel integration section here - https://jspm.org/docs/integrations#babel.

[guybedford]

(With tracking issue for Babel at babel/babel#9888)

[fusionstrings]

aha, I thought it's the case only when files are processed directly with babel cli because it's not mentioned under rollup integration.