Haul: Cannot find module 'core-js/modules/es7.string.pad-start'

[shahen94]

Current Behavior

Expected Behavior

init haul correctly

Haul Configuration (webpack.haul.js)

can't generate configuration file

Your Environment

| software | version
| ---------------- | -------
| Haul | latest
| react-native | 0.43.4
| node | 7.5.0
| npm or yarn | 4.5.0

[grabbou]

Have you tried removing your node_modules and installing them again?

[grabbou]

I just installed and inited project once again - had no issues at all. Let me know if the problem still persist - if yes, I'll be happy to reinvestigate this issue.

[vlad-zhukov]

The problem occurs when install deps with npm. Removing node_modules and reinstalling doesn't help. yarn works fine however.

What happened in my case is npm installed [email protected] -> [email protected] -> [email protected] to the root of node_modules. There is no module/es7.string.pad-start.js in [email protected] yet.

Adding core-js to dev deps in my project fixed the problem.

[Genitana]

i npm install core-js , and fixed it

[Traviskn]

I get this error when using npm instead of yarn. (npm version 4.2.0, node version 7.9.0) Installing core-js as a dev dependency fixes the issue.

While yarn is great for many projects, I don't know that using yarn should be a requirement for using haul. Would it make sense for core-js to be added as a peer dependency of this project to support npm users?

[Traviskn]

I still run into this issue on new projects when installing the latest version of haul, is there a reason this issue has been closed?

[satya164]

@Traviskn a pr adding core-js to haul's dependencies is welcome

[Traviskn]

sounds good, I'd be glad to help contribute