An unexpected error occurred while running ng lint in an Angular project

I've encountered an issue while trying to run ng lint on my Angular project. After migrating from TSLint to ESLint, I'm getting the following error message when running ng lint:

An unhandled exception occurred: Invalid lint configuration. Nothing to lint.

I'm puzzled as to what could have possibly gone wrong with the configuration.

Angular version: Angular CLI: 11.2.9, Angular: 11.2.0

.eslintrc.json

{
  "root": true,
  // Rest of the .eslintrc.json file content goes here ...
}

angular.json

{
  "$schema": "./node_modules/@angular/cli/lib/config/schema.json",
  // Rest of the angular.json file content goes here ...
}

package.json

{
  "name": "libs-common-angular",
  // Rest of the package.json file content goes here ...
}

Answer №1

After encountering the same issue while attempting the same task, I came to a realization.

Upon inspecting the auto-generated .eslintrc.json file, I discovered the following:

"ignorePatterns": [
  "projects/**/*"
],

Interpreting this pattern, it seemed to instruct the system to disregard all files within my projects directory. This explains why linting couldn't detect anything. Removing this pattern resolved the issue for me.

The revised code now appears as follows:

"ignorePatterns": [],

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