TypeError: src.forEach is not a function with laravel-mix@0.6.0

What I did yarn upgrade laravel-mix from version 0.5.9 to version 0.6.0 Then I run npm run dev

What was expected To be able to bundle the assets without errors, like when using v.0.5.9 (provided the same webpack.mix.js and webpack.config.js file)

What I get The following TyperError

/home/user/.nvm/versions/node/v7.4.0/bin/node /home/user/.nvm/versions/node/v7.4.0/lib/node_modules/npm/bin/npm-cli.js run dev

> @ dev /home/user/webApps/apptree2
> node node_modules/cross-env/bin/cross-env.js NODE_ENV=development node_modules/webpack/bin/webpack.js --progress --hide-modules --config=node_modules/laravel-mix/setup/webpack.config.js

/home/user/webApps/apptree2/node_modules/laravel-mix/src/index.js:139
    src.forEach(file => {
        ^

TypeError: src.forEach is not a function

Other steps I run yarn add laravel-mix@0.5.9 and subsequently npm run dev and the process successfully finished with exit code 0

[adriaanzon]

In this case, mix.copy() instead of mix.combine() would have been more fitting

[iraklisg]

@JeffreyWay I just opened a new issue #284 requesting this feature 😛 Hopefully someone could provide some help with this