Cannot read property 'execute' of undefined

[petershaw]

Hi, i try to lint a directory.

my config is:

        eslint: {
            target: {
                src: ['simplestore.js', 'lib/*.js']
            },
            options: {
                outputFile: 'checkstyle.xml',
                format: 'checkstyle'
            }       
        }

lib has file1.js, file2.js and file3.js.

grunt returns an error, as soon as i have a * in the list. If I list all three files it works, with a wildcard it doesn't.

Running "eslint:target" (eslint) task
[D] Task source: /Projects/dobo-Modules/dobo-simplestore/node_modules/grunt-contrib-eslint/tasks/eslint.js
Verifying property eslint.target exists in config...OK
Files: main.js, lib/file1.js, lib/file2.js, lib/file3.js
Options: silent=false, outputFile="checkstyle.xml", format="checkstyle"
Warning: Cannot read property 'execute' of undefined Use --force to continue.

[sindresorhus]

You need to expand the pattern: http://stackoverflow.com/questions/15344584/grunt-0-4-less-task-how-to-not-concatenate-destination-files/15371443#15371443