TypeError: Cannot destructure property writeFile

[daniel-barrows]

I just installed wikidata on Ubuntu 18.04.3 LTS via npm. I can't get past the configuration step. wd help outputs fine, but wd config returns errors. See more below.

$ lsb_release -d
Description:    Ubuntu 18.04.3 LTS
$ nodejs --version
v8.10.0
$ npm --version
3.5.2
$ wd --version
12.0.0
$ wd config path
/usr/local/lib/node_modules/wikibase-cli/lib/config/file_operations.js:1
(function (exports, require, module, __filename, __dirname) { const { writeFile } = require('fs').promises
                                                                      ^

TypeError: Cannot destructure property `writeFile` of 'undefined' or 'null'.
    at Object.<anonymous> (/usr/local/lib/node_modules/wikibase-cli/lib/config/file_operations.js:1:98)
    at Module._compile (module.js:652:30)
    at Object.Module._extensions..js (module.js:663:10)
    at Module.load (module.js:565:32)
    at tryModuleLoad (module.js:505:12)
    at Function.Module._load (module.js:497:3)
    at Module.require (module.js:596:17)
    at require (internal/module.js:11:18)
    at Object.<anonymous> (/usr/local/lib/node_modules/wikibase-cli/bin/wb-config:5:17)
    at Module._compile (module.js:652:30)
$ wd id 'Wikidata'
FetchError: request to https://c.wikipedia.org/w/api.php?format=json&action=query&redirects&titles=Wikidata failed, reason: getaddrinfo ENOTFOUND c.wikipedia.org c.wikipedia.org:443
    at ClientRequest.<anonymous> (/usr/local/lib/node_modules/wikibase-cli/node_modules/node-fetch/lib/index.js:1455:11)
    at emitOne (events.js:116:13)
    at ClientRequest.emit (events.js:211:7)
    at TLSSocket.socketErrorListener (_http_client.js:387:9)
    at emitOne (events.js:116:13)
    at TLSSocket.emit (events.js:211:7)
    at emitErrorNT (internal/streams/destroy.js:64:8)
    at _combinedTickCallback (internal/process/next_tick.js:138:11)
    at process._tickCallback (internal/process/next_tick.js:180:9)
Context: undefined

Similar errors are output for all commands of wd config. I'm guessing the error of wd id is related to the locale not being configured, so it assumes 'c'.

[maxlath]

the issue was that require('fs').promises only exists for NodeJS >= v10, I reverted to using require('fs').writeFileSync instead to recover support for NodeJS v8, but note that as v8 has now passed End-of-Life date, the support might be dropped in future releases