redoc-cli TypeError: rules.flatMap is not a function

[etal2]

Using the latest redoc-cli I get en error on both bundle and server commands, going back to 0.10.3 works without any issues.

npx redoc-cli bundle ./backend.openapi.yml --output ./backend.openapi.html TypeError: rules.flatMap is not a function at Object.initRules (/home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/config/rules.js:7:10) at /home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/bundle.js:46:39 at Generator.next (<anonymous>) at /home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/bundle.js:8:71 at new Promise (<anonymous>) at __awaiter (/home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/bundle.js:4:12) at bundleDocument (/home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/bundle.js:40:12) at /home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/bundle.js:35:16 at Generator.next (<anonymous>) at fulfilled (/home/etal/.npm/_npx/1574728/lib/node_modules/redoc-cli/node_modules/@redocly/openapi-core/lib/bundle.js:5:58)

redoc-cli 0.10.4 - 0.11.4
npm 6.14.11
node v10.23.0

[RomanHotsiy]

redoc-cli is supported only from node@12.

We'll update engines field in package.json in the upcoming release.

Thanks for your report!