[v2.0.0] TypeError: merge.smart is not a function

[antoinerousseau]

I just upgraded from 1.6.3 to 2.0.0 and now the --config arg crashes with:

yarn run v1.22.4
$ cross-env NODE_ENV=development netlify-lambda serve src/functions --config webpack.functions.js --timeout 30
netlify-lambda: Starting server
/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/lib/build.js:148
    return merge.smart(webpackConfig, webpackAdditional);
                 ^

TypeError: merge.smart is not a function
    at webpackConfig (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/lib/build.js:148:18)
    at Object.exports.watch (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/lib/build.js:170:26)
    at Command.<anonymous> (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/bin/cmd.js:61:11)
    at Command.listener [as _actionHandler] (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/node_modules/commander/index.js:413:31)
    at Command._parseCommand (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/node_modules/commander/index.js:914:14)
    at Command._dispatchSubcommand (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/node_modules/commander/index.js:865:18)
    at Command._parseCommand (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/node_modules/commander/index.js:882:12)
    at Command.parse (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/node_modules/commander/index.js:717:10)
    at Object.<anonymous> (/Users/antoine/Sites/oss/gatsby-starter-antoine/node_modules/netlify-lambda/bin/cmd.js:115:9)
    at Module._compile (internal/modules/cjs/loader.js:1147:30)
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.

[briangonzalezmia]

I can confirm this is an issue with 2.0.0. Reverting back to 1.6.3 works.

[bloqhead]

Chiming in. Switching back to the previous version of netlify-lambda worked for me, but this is obviously not ideal.

[svengau]

merge.smart(..) has been removed from webpack-merge@5.0.3:

https://github.com/survivejs/webpack-merge/blob/master/CHANGELOG.md

[svengau]

@erezrokah you've updated packages in this commit: f558976

Maybe we can downgrade to previous version of webpack-merge?

[erezrokah]

A fix for this is now released in v2.0.1.
Sorry for the late follow up, and thanks everyone for reporting the issue.