Extendscript Help

Can someone tell me why this won't work?

// Prompt user to select files
var files = File.openDialog("Select files to import", "*.mp4", true);
if (files) {
// Import files into project bin
var project = app.project;
var bin = project.rootItem;

for (var i = 0; i < files.length; i++) {
var file = files[i];
var item = project.importFile(new ImportOptions(file));
bin.addProjectItem(item);
}

// Create a new sequence
var sequence = project.sequences.add("New Sequence", SequenceSettings());

// Add all items from the bin to the timeline
for (var j = 0; j < bin.children.numItems; j++) {
var binItem = bin.children[j];
sequence.videoTracks[0].insertClip(binItem);
}

// Run scene edit detection
var sceneDetection = app.project.activeSequence.sceneDetection;
sceneDetection.runFullScan();

// Create a folder for detected scenes
var sceneFolder = bin.createBin("Detected Scenes");

// Add detected scenes to the folder
for (var k = 0; k < sceneDetection.numScenes; k++) {
var scene = sceneDetection.getScene(k);
var sceneName = "Scene " + (k + 1);
var sceneBin = sceneFolder.createBin(sceneName);
for (var m = scene.inPoint; m <= scene.outPoint; m++) {
var sceneItem = sequence.videoTracks[0].getItemAtTime(m);
if (sceneItem) {
sceneBin.addProjectItem(sceneItem.projectItem);
}
}
}

alert("Files imported, timeline created, and scenes detected!");
} else {
alert("No files selected.");
}