webpack broken by ajv@6.9.0, "custom keyword definition is invalid: data.errors should be boolean"

Bug report

What is the current behavior? A fresh install of webpack will fail to run with the error “custom keyword definition is invalid: data.errors should be boolean” due to the latest version of ajv. See issue here https://github.com/epoberezkin/ajv/issues/941 referencing many other broken projects.

If the current behavior is a bug, please provide the steps to reproduce. Install webpack and attempt to use it.

What is the expected behavior? I expect webpack not to fail due to unreliable, auto-updating dependencies.

Other relevant information: webpack version: 4.28.4 Node.js version: 10.15.1 Operating System: Windows 10 Additional tools:

[RusseII]

If you use yarn

add below to package.json

  "resolutions": {
    "ajv": "6.8.1"
  }

then run yarn install

if you use npm

npm uninstall ajv
npm install ajv@6.8.1

[tyteen4a03]

Or add this to your package.json:

  "resolutions": {
    "ajv": "6.8.1"
  }

Then yarn install.

For npm users:

rm -rf node_modules
npx npm-force-resolutions
npm install