Error: multiple output @typescript-eslint/triple-slash-reference ESLint rule options were generated, but tslint-to-eslint-config doesn't have "merger" logic to deal with this

[mgechev]

Error: multiple output @typescript-eslint/triple-slash-reference ESLint rule options were generated, but tslint-to-eslint-config doesn't have "merger" logic to deal with this

💥 Missing Merger

• tslint-to-eslint-config version: 0.6.0
• ESLint version: 6.8.0

CLI Output

✨ 75 rules replaced with their ESLint equivalents. ✨

❗ 8 ESLint rules behave differently from their TSLint counterparts ❗
  * no-console:
    - Custom console methods, if they exist, will no longer be allowed.
  * space-before-function-paren:
    - Option "constructor" is not supported by ESLint.
    - Option "method" is not supported by ESLint.
  * camelcase:
    - Leading and trailing underscores (_) in variable names will now be ignored.
    - ESLint's camel-case rule does not allow pascal or snake case variable names. Those cases are reserved for class names and static methods.
  * no-underscore-dangle:
    - Leading or trailing underscores (_) on identifiers will now be forbidden.
  * no-invalid-this:
    - Functions in methods will no longer be ignored.
  * no-unused-expressions:
    - The TSLint optional config "allow-new" is the default ESLint behavior and will no longer be ignored.
  * prefer-arrow/prefer-arrow-functions:
    - ESLint does not support allowing standalone function declarations.
    - ESLint does not support allowing named functions defined with the function keyword.
  * eqeqeq:
    - Option "smart" allows for comparing two literal values, evaluating the value of typeof and null comparisons.

❌  error thrown. ❌
  Check ./tslint-to-eslint-config.log for details.
 ️
❓ 1 rules do not yet have ESLint equivalents ❓
  See generated log file; defaulting to eslint-plugin-tslint for these rules.

⚡  packages are required for new ESLint rules. ⚡
  eslint-plugin-import
  eslint-plugin-jsdoc
  prefer-arrow

✅ All is well! ✅

File Output

Error: multiple output @typescript-eslint/triple-slash-reference ESLint rule options were generated, but tslint-to-eslint-config doesn't have "merger" logic to deal with this.
Please file an issue at https://github.com/typescript-eslint/tslint-to-eslint-config/issues/new?template=missing_merger.md 🙏

�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "component-class-suffix"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "component-selector"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "contextual-lifecycle"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "directive-class-suffix"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "directive-selector"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "import-spacing"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-conflicting-lifecycle"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-host-metadata-property"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-input-rename"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-inputs-metadata-property"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-output-native"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-output-on-prefix"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-output-rename"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "no-outputs-metadata-property"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "template-banana-in-box"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "template-no-negated-async"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "use-lifecycle-interface"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "use-pipe-transform-interface"�[39m
�[33mtslint-to-eslint-config does not know the ESLint equivalent for TSLint's "whitespace"�[39m
�[33m�[39m

Reproduction

• Create a new Angular CLI project with version ^9.1.1 (ng new foo)
• Go to the project directory and run npx tslint-to-eslint-config