Typo: the last character of not-found plugin vanished

[znagadeon]

Tell us about your environment

• ESLint Version: v7.14.0
• Node Version: v12.13.0
• npm Version: v6.14.1

What parser (default, @babel/eslint-parser, @typescript-eslint/parser, etc.) are you using? default

Please show your full configuration:

Configuration

{
  "extends": [
    "plugin:not-installed-plugin"
  ]
}

What did you do? Please include the actual source code causing the issue, as well as the command that you used to run ESLint.

Oops! Something went wrong! :(

ESLint: 7.14.0

ESLint couldn't find the plugin "eslint-plugin-not-installed-plugi".

(The package "eslint-plugin-not-installed-plugi" was not found when loaded as a Node module from the directory "/Users/kakao/src/homepage".)

It's likely that the plugin isn't installed correctly. Try reinstalling by running the following:

    npm install eslint-plugin-not-installed-plugi@latest --save-dev

The plugin "eslint-plugin-not-installed-plugi" was referenced from the config file in ".eslintrc.json".

If you still can't figure out the problem, please stop by https://eslint.org/chat/help to chat with the team.

What did you expect to happen?
Plugin name would be displayed properly.

What actually happened? Please include the actual, raw output from ESLint.
The last character is vanished.

Are you willing to submit a pull request to fix this bug?
No

[mdjermanovic]

Hi @znagadeon, thanks for the issue!

"extends": ["plugin:foo"] is actually an invalid configuration.

It should be either "extends": ["plugin:foo/configName"] if foo is a plugin that exports a config, or "extends": ["foo"] without plugin: if foo is a shareable config (not a plugin):

• Using the configuration from a plugin
• Using a shareable configuration package

Aside from missing the last character, the error message you're getting is completely wrong. It should be like this message.

We fixed this issue in #13473, but missed to transfer that change when some functionality was extracted to the @eslint/eslintrc package.

I'm closing this as a duplicate of eslint/eslintrc#12