You are linting "<%= pattern %>", but all of the files matching the glob pattern "<%= pattern %>" are ignored. If you don't want to lint these files, remove the pattern "<%= pattern %>" from the list of arguments passed to ESLint. If you do want to lint these files, try the following solutions: * Check your .eslintignore file, or the eslintIgnore property in package.json, to ensure that the files are not configured to be ignored. * Explicitly list the files from this glob that you'd like to lint on the command-line, rather than providing a glob as an argument.