message: Fixed callback error
diff: @@ -19,17 +19,18 @@ import os from 'os';
  import { runPlain } from '../lib/run';
  import { paths } from '../lib/paths';
  import { Lockfile } from '../lib/versioning';
  +import fs from 'fs-extra';
  export default async () => {
  await new Promise(async () => {
  const yarnVersion = await runPlain('yarn --version');
  // eslint-disable-next-line no-restricted-syntax
  - const isLocal = require('fs').existsSync(paths.resolveOwn('./src'));
  + const isLocal = fs.existsSync(paths.resolveOwn('./src'));
  const backstageFile = paths.resolveTargetRoot('backstage.json');
  let backstageJson = undefined;
  - if (require('fs').existsSync(backstageFile)) {
  - const buffer = await require('fs').readFile(backstageFile);
  + if (fs.existsSync(backstageFile)) {
  + const buffer = await fs.readFile(backstageFile);
  backstageJson = JSON.parse(buffer.toString());
  }
  