Error: Failed to load config "xo-typescript" to extend from.

[fregante]

I'm having the same issue reported by Sindre here: #426 (comment)

Error: Failed to load config "xo-typescript" to extend from.
Referenced from: BaseConfig
    at configMissingError (./node_modules/eslint/lib/cli-engine/config-array-factory.js:265:9)
    at ConfigArrayFactory._loadExtendedShareableConfig (./node_modules/eslint/lib/cli-engine/config-array-factory.js:826:23)
    at ConfigArrayFactory._loadExtends (./node_modules/eslint/lib/cli-engine/config-array-factory.js:731:25)
    at ConfigArrayFactory._normalizeObjectConfigDataBody (./node_modules/eslint/lib/cli-engine/config-array-factory.js:660:25)
    at _normalizeObjectConfigDataBody.next (<anonymous>)
    at ConfigArrayFactory._normalizeObjectConfigData (./node_modules/eslint/lib/cli-engine/config-array-factory.js:596:20)
    at _normalizeObjectConfigData.next (<anonymous>)
    at createConfigArray (./node_modules/eslint/lib/cli-engine/config-array-factory.js:340:25)
    at ConfigArrayFactory.create (./node_modules/eslint/lib/cli-engine/config-array-factory.js:395:16)
    at createBaseConfigArray (./node_modules/eslint/lib/cli-engine/cascading-config-array-factory.js:86:48)

This also happens after clearing ~/.xo-cache and rm -rf node_modules package-lock.json && npm i

Config

{
	"xo": {
		"envs": [
			"browser"
		],
		"rules": {
			"@typescript-eslint/no-unnecessary-type-assertion": "off"
		}
	},
	"devDependencies": {
		"@sindresorhus/tsconfig": "^0.7.0",
		"browserify": "^16.2.2",
		"esmify": "^2.1.1",
		"npm-run-all": "^4.1.3",
		"tape": "^4.10.1",
		"tape-run": "^5.0.0",
		"typescript": "^3.8.3",
		"xo": "^0.28.3"
	}
}

Versions

macOS 10.15
Node v13.8.0
npm 6.13.6
xo 0.28.3

[fregante]

This fixed it, but it shouldn't be necessary:

npm i -D eslint-config-xo-typescript @typescript-eslint/parser @typescript-eslint/eslint-plugin

[fregante]

And now I can no longer reproduce. Neat.