webpack-cli fails to run with latest resolved version 2.1.5

[jchavarri]

I tried to run this sample app with latest versions of packages (without touching package.json, just upgrading them) but it fails to run Webpack. The code in master as is works fine.

Versions:

• yarn: 1.11.0-0
• node: v12.13.1

Repro:

git clone https://github.com/yarnpkg/pnp-sample-app && cd pnp-sample-app
yarn
yarn webpack

Error:

/Users/x/Library/Caches/Yarn/v3/npm-webpack-cli-2.1.5-3081fdeb2f205f0a54aa397986880b0c20a71f7a/node_modules/webpack-cli/bin/config-yargs.js:89
				describe: optionsSchema.definitions.output.properties.path.description,
				                                           ^

TypeError: Cannot read property 'properties' of undefined
    at module.exports (/Users/x/Library/Caches/Yarn/v3/npm-webpack-cli-2.1.5-3081fdeb2f205f0a54aa397986880b0c20a71f7a/node_modules/webpack-cli/bin/config-yargs.js:89:48)
    at /Users/x/Library/Caches/Yarn/v3/npm-webpack-cli-2.1.5-3081fdeb2f205f0a54aa397986880b0c20a71f7a/node_modules/webpack-cli/bin/webpack.js:60:27
    at Object.<anonymous> (/Users/x/Library/Caches/Yarn/v3/npm-webpack-cli-2.1.5-3081fdeb2f205f0a54aa397986880b0c20a71f7a/node_modules/webpack-cli/bin/webpack.js:515:3)
    at Module._compile (internal/modules/cjs/loader.js:959:30)
    at Object.Module._extensions..js (internal/modules/cjs/loader.js:995:10)
    at Module.load (internal/modules/cjs/loader.js:815:32)
    at Function.Module._load (/Users/x/Downloads/pnp-sample-app-master/.pnp.js:15473:14)
    at Module.require (internal/modules/cjs/loader.js:852:19)
    at require (internal/modules/cjs/helpers.js:74:18)
    at Object.<anonymous> (/Users/x/Library/Caches/Yarn/v3/npm-webpack-4.41.5-3210f1886bce5310e62bb97204d18c263341b77c/node_modules/webpack/bin/webpack.js:156:2)