schema-utils test error log

errorlog.txt

$ yarn run test
yarn run v1.13.0
$ jest --env node --verbose --coverage
 FAIL  test/index.test.js
  ● Test suite failed to run

    custom keyword definition is invalid: data/errors should be boolean

      at Ajv.addKeyword (node_modules/ajv/lib/keyword.js:65:13)
      at Object.<anonymous>.module.exports (node_modules/ajv-errors/index.js:10:7)
      at Object.<anonymous> (src/validateOptions.js:22:1)
      at Object.<anonymous> (src/index.js:7:74)

Test Suites: 1 failed, 1 total
Tests:       0 total
Snapshots:   0 total
Time:        2.637s
Ran all test suites.
----------|----------|----------|----------|----------|-------------------|
File      |  % Stmts | % Branch |  % Funcs |  % Lines | Uncovered Line #s |
----------|----------|----------|----------|----------|-------------------|
All files |  Unknown |  Unknown |  Unknown |  Unknown |                   |
----------|----------|----------|----------|----------|-------------------|
error Command failed with exit code 1.
info Visit https://yarnpkg.com/en/docs/cli/run for documentation about this command.