Fatal error: missing '{' near line 2:16 about grunt-uncss HOT 4 CLOSED

uncss(src, options, function (output) {
                    grunt.file.write(f.dest, output);
                    done();
                });

uncss(src, options, function (output) {
                    grunt.file.write(f.dest, output);
                });
                done();

uncss: {
        dist: {
            files: {
                'build/css/style.css':['src/search_box.html', 'src/results.html']
            }
        },
         options: {
            ignore:["#linkToTaburl",".searchResultsTemplate",".page-header",".results",".result-item"],
            stylesheets: ["src/lib/css/bootstrap.min.css","src/lib/css/customize_bootstrap.css"]
        } 
    },

 uncss: {
        dist: {
            files: {
                'build/css/style.css':['src/search_box.html', 'src/results.html']
            }
        },
         options: {
            ignore:["#linkToTaburl",".searchResultsTemplate",".page-header",".results",".result-item"] 
           /* stylesheets: ["src/lib/css/bootstrap.min.css","src/lib/css/customize_bootstrap.css"] */
        } 
    },