vue-cli init | [.babelrc] Missing helper: "if_or"

[andersonaguiar]

Version

3.0.0-alpha.9

Reproduction link

https://d2ffutrenqvap3.cloudfront.net/items/0X3h1G1G381I163G1N3t/Image%202018-02-07%20at%202.50.42%20pm.png?v=a31218fa

Steps to reproduce

vue init webpack common

(enter till the end)

What is expected?

Generate the project

What is actually happening?

vue-cli · [.babelrc] Missing helper: "if_or"

[yyx990803]

Can't reproduce. I used the exact same prompt options and it works as expected. This seems quite weird because the helper is obviously defined and it's been there for over a month.

Likely a cache related issue, looks like your network fetched some outdated files.

[andersonaguiar]

I uninstalled my node, yarn, vue-cli and all related dependencies and installed again, the problem still is happening.

Here is others with the same problem than me:

vuejs-templates/webpack#1188
#627

Any idea?

[andersonaguiar]

Solved.

yarnpkg/yarn#1321

I was trying to install vue-cli via yarn, but have been unsuccessful.

[vvo]

@andersonaguiar does it means vue-cli can't be installed via yarn? Installation for me is "successful" (minor some errors). But then vue init fails at the step you said.

[abrenneke]

Yeah, same deal here, it seems that vue-cli can't be installed via Yarn. Uninstalling it and reinstalling via npm works fine.

[qwfy5287]

the same error, use yarn global add @vue/cli

use npm install -g @vue/cli is ok